1907 lines
		
	
	
		
			76 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			1907 lines
		
	
	
		
			76 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * ffmpeg option parsing
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|  *
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|  * This file is part of FFmpeg.
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|  *
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|  * FFmpeg is free software; you can redistribute it and/or
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|  * modify it under the terms of the GNU Lesser General Public
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|  * License as published by the Free Software Foundation; either
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|  * version 2.1 of the License, or (at your option) any later version.
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|  *
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|  * FFmpeg is distributed in the hope that it will be useful,
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|  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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|  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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|  * Lesser General Public License for more details.
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|  *
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|  * You should have received a copy of the GNU Lesser General Public
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|  * License along with FFmpeg; if not, write to the Free Software
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|  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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|  */
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| 
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| #include "config.h"
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| 
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| #include <stdint.h>
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| 
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| #if HAVE_SYS_RESOURCE_H
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| #include <sys/time.h>
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| #include <sys/resource.h>
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| #endif
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| 
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| #include "ffmpeg.h"
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| #include "ffmpeg_sched.h"
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| #include "cmdutils.h"
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| #include "opt_common.h"
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| 
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| #include "libavformat/avformat.h"
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| 
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| #include "libavcodec/avcodec.h"
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| #include "libavcodec/bsf.h"
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| 
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| #include "libavfilter/avfilter.h"
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| 
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| #include "libavutil/avassert.h"
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| #include "libavutil/avstring.h"
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| #include "libavutil/avutil.h"
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| #include "libavutil/mathematics.h"
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| #include "libavutil/mem.h"
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| #include "libavutil/opt.h"
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| #include "libavutil/parseutils.h"
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| 
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| HWDevice *filter_hw_device;
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| 
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| char *vstats_filename;
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| 
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| float audio_drift_threshold = 0.1;
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| float dts_delta_threshold   = 10;
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| float dts_error_threshold   = 3600*30;
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| 
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| #if FFMPEG_OPT_VSYNC
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| enum VideoSyncMethod video_sync_method = VSYNC_AUTO;
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| #endif
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| float frame_drop_threshold = 0;
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| int do_benchmark      = 0;
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| int do_benchmark_all  = 0;
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| int do_hex_dump       = 0;
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| int do_pkt_dump       = 0;
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| int copy_ts           = 0;
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| int start_at_zero     = 0;
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| int copy_tb           = -1;
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| int debug_ts          = 0;
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| int exit_on_error     = 0;
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| int abort_on_flags    = 0;
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| int print_stats       = -1;
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| int stdin_interaction = 1;
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| float max_error_rate  = 2.0/3;
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| char *filter_nbthreads;
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| int filter_complex_nbthreads = 0;
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| int vstats_version = 2;
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| int auto_conversion_filters = 1;
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| int64_t stats_period = 500000;
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| 
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| 
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| static int file_overwrite     = 0;
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| static int no_file_overwrite  = 0;
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| int ignore_unknown_streams = 0;
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| int copy_unknown_streams = 0;
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| int recast_media = 0;
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| 
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| static void uninit_options(OptionsContext *o)
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| {
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|     int i;
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| 
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|     /* all OPT_SPEC and OPT_TYPE_STRING can be freed in generic way */
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|     for (const OptionDef *po = options; po->name; po++) {
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|         void *dst;
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| 
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|         if (!(po->flags & OPT_FLAG_OFFSET))
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|             continue;
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| 
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|         dst = (uint8_t*)o + po->u.off;
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|         if (po->flags & OPT_FLAG_SPEC) {
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|             SpecifierOptList *so = dst;
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|             for (int i = 0; i < so->nb_opt; i++) {
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|                 av_freep(&so->opt[i].specifier);
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|                 if (po->type == OPT_TYPE_STRING)
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|                     av_freep(&so->opt[i].u.str);
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|             }
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|             av_freep(&so->opt);
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|             so->nb_opt = 0;
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|         } else if (po->type == OPT_TYPE_STRING)
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|             av_freep(dst);
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|     }
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| 
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|     for (i = 0; i < o->nb_stream_maps; i++)
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|         av_freep(&o->stream_maps[i].linklabel);
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|     av_freep(&o->stream_maps);
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| 
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|     for (i = 0; i < o->nb_attachments; i++)
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|         av_freep(&o->attachments[i]);
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|     av_freep(&o->attachments);
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| 
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|     av_dict_free(&o->streamid);
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| }
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| 
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| static void init_options(OptionsContext *o)
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| {
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|     memset(o, 0, sizeof(*o));
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| 
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|     o->stop_time = INT64_MAX;
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|     o->mux_max_delay  = 0.7;
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|     o->start_time     = AV_NOPTS_VALUE;
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|     o->start_time_eof = AV_NOPTS_VALUE;
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|     o->recording_time = INT64_MAX;
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|     o->limit_filesize = INT64_MAX;
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|     o->chapters_input_file = INT_MAX;
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|     o->accurate_seek  = 1;
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|     o->thread_queue_size = 0;
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|     o->input_sync_ref = -1;
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|     o->find_stream_info = 1;
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|     o->shortest_buf_duration = 10.f;
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| }
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| 
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| static int show_hwaccels(void *optctx, const char *opt, const char *arg)
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| {
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|     enum AVHWDeviceType type = AV_HWDEVICE_TYPE_NONE;
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| 
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|     printf("Hardware acceleration methods:\n");
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|     while ((type = av_hwdevice_iterate_types(type)) !=
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|            AV_HWDEVICE_TYPE_NONE)
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|         printf("%s\n", av_hwdevice_get_type_name(type));
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|     printf("\n");
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|     return 0;
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| }
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| 
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| /* return a copy of the input with the stream specifiers removed from the keys */
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| AVDictionary *strip_specifiers(const AVDictionary *dict)
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| {
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|     const AVDictionaryEntry *e = NULL;
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|     AVDictionary    *ret = NULL;
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| 
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|     while ((e = av_dict_iterate(dict, e))) {
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|         char *p = strchr(e->key, ':');
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| 
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|         if (p)
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|             *p = 0;
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|         av_dict_set(&ret, e->key, e->value, 0);
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|         if (p)
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|             *p = ':';
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|     }
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|     return ret;
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| }
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| 
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| const char *opt_match_per_type_str(const SpecifierOptList *sol,
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|                                    char mediatype)
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| {
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|     av_assert0(!sol->nb_opt || sol->type == OPT_TYPE_STRING);
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| 
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|     for (int i = 0; i < sol->nb_opt; i++) {
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|         const char *spec = sol->opt[i].specifier;
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|         if (spec[0] == mediatype && !spec[1])
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|             return sol->opt[i].u.str;
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|     }
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|     return NULL;
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| }
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| 
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| int parse_and_set_vsync(const char *arg, int *vsync_var, int file_idx, int st_idx, int is_global)
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| {
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|     if      (!av_strcasecmp(arg, "cfr"))         *vsync_var = VSYNC_CFR;
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|     else if (!av_strcasecmp(arg, "vfr"))         *vsync_var = VSYNC_VFR;
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|     else if (!av_strcasecmp(arg, "passthrough")) *vsync_var = VSYNC_PASSTHROUGH;
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| #if FFMPEG_OPT_VSYNC_DROP
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|     else if (!av_strcasecmp(arg, "drop")) {
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|         av_log(NULL, AV_LOG_WARNING, "-vsync/fps_mode drop is deprecated\n");
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|         *vsync_var = VSYNC_DROP;
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|     }
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| #endif
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|     else if (!is_global && !av_strcasecmp(arg, "auto"))  *vsync_var = VSYNC_AUTO;
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|     else if (!is_global) {
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|         av_log(NULL, AV_LOG_FATAL, "Invalid value %s specified for fps_mode of #%d:%d.\n", arg, file_idx, st_idx);
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|         return AVERROR(EINVAL);
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|     }
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| 
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| #if FFMPEG_OPT_VSYNC
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|     if (is_global && *vsync_var == VSYNC_AUTO) {
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|         int ret;
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|         double num;
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| 
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|         ret = parse_number("vsync", arg, OPT_TYPE_INT, VSYNC_AUTO, VSYNC_VFR, &num);
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|         if (ret < 0)
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|             return ret;
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| 
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|         video_sync_method = num;
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|         av_log(NULL, AV_LOG_WARNING, "Passing a number to -vsync is deprecated,"
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|                " use a string argument as described in the manual.\n");
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|     }
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| #endif
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| 
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|     return 0;
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| }
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| 
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| /* Correct input file start times based on enabled streams */
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| static void correct_input_start_times(void)
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| {
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|     for (int i = 0; i < nb_input_files; i++) {
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|         InputFile       *ifile = input_files[i];
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|         AVFormatContext    *is = ifile->ctx;
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|         int64_t new_start_time = INT64_MAX, diff, abs_start_seek;
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| 
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|         ifile->start_time_effective = is->start_time;
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| 
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|         if (is->start_time == AV_NOPTS_VALUE ||
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|             !(is->iformat->flags & AVFMT_TS_DISCONT))
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|             continue;
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| 
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|         for (int j = 0; j < is->nb_streams; j++) {
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|             AVStream *st = is->streams[j];
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|             if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
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|                 continue;
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|             new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
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|         }
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| 
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|         diff = new_start_time - is->start_time;
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|         if (diff) {
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|             av_log(NULL, AV_LOG_VERBOSE, "Correcting start time of Input #%d by %"PRId64" us.\n", i, diff);
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|             ifile->start_time_effective = new_start_time;
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|             if (copy_ts && start_at_zero)
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|                 ifile->ts_offset = -new_start_time;
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|             else if (!copy_ts) {
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|                 abs_start_seek = is->start_time + (ifile->start_time != AV_NOPTS_VALUE) ? ifile->start_time : 0;
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|                 ifile->ts_offset = abs_start_seek > new_start_time ? -abs_start_seek : -new_start_time;
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|             } else if (copy_ts)
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|                 ifile->ts_offset = 0;
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| 
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|             ifile->ts_offset += ifile->input_ts_offset;
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|         }
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|     }
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| }
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| 
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| static int apply_sync_offsets(void)
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| {
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|     for (int i = 0; i < nb_input_files; i++) {
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|         InputFile *ref, *self = input_files[i];
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|         int64_t adjustment;
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|         int64_t self_start_time, ref_start_time, self_seek_start, ref_seek_start;
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|         int start_times_set = 1;
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| 
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|         if (self->input_sync_ref == -1 || self->input_sync_ref == i) continue;
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|         if (self->input_sync_ref >= nb_input_files || self->input_sync_ref < -1) {
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|             av_log(NULL, AV_LOG_FATAL, "-isync for input %d references non-existent input %d.\n", i, self->input_sync_ref);
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|             return AVERROR(EINVAL);
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|         }
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| 
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|         if (copy_ts && !start_at_zero) {
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|             av_log(NULL, AV_LOG_FATAL, "Use of -isync requires that start_at_zero be set if copyts is set.\n");
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|             return AVERROR(EINVAL);
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|         }
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| 
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|         ref = input_files[self->input_sync_ref];
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|         if (ref->input_sync_ref != -1 && ref->input_sync_ref != self->input_sync_ref) {
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|             av_log(NULL, AV_LOG_ERROR, "-isync for input %d references a resynced input %d. Sync not set.\n", i, self->input_sync_ref);
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|             continue;
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|         }
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| 
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|         if (self->ctx->start_time_realtime != AV_NOPTS_VALUE && ref->ctx->start_time_realtime != AV_NOPTS_VALUE) {
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|             self_start_time = self->ctx->start_time_realtime;
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|             ref_start_time  =  ref->ctx->start_time_realtime;
 | |
|         } else if (self->start_time_effective != AV_NOPTS_VALUE && ref->start_time_effective != AV_NOPTS_VALUE) {
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|             self_start_time = self->start_time_effective;
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|             ref_start_time  =  ref->start_time_effective;
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|         } else {
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|             start_times_set = 0;
 | |
|         }
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| 
 | |
|         if (start_times_set) {
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|             self_seek_start = self->start_time == AV_NOPTS_VALUE ? 0 : self->start_time;
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|             ref_seek_start  =  ref->start_time == AV_NOPTS_VALUE ? 0 :  ref->start_time;
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| 
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|             adjustment = (self_start_time - ref_start_time) + !copy_ts*(self_seek_start - ref_seek_start) + ref->input_ts_offset;
 | |
| 
 | |
|             self->ts_offset += adjustment;
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| 
 | |
|             av_log(NULL, AV_LOG_INFO, "Adjusted ts offset for Input #%d by %"PRId64" us to sync with Input #%d.\n", i, adjustment, self->input_sync_ref);
 | |
|         } else {
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|             av_log(NULL, AV_LOG_INFO, "Unable to identify start times for Inputs #%d and %d both. No sync adjustment made.\n", i, self->input_sync_ref);
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static int opt_filter_threads(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     av_free(filter_nbthreads);
 | |
|     filter_nbthreads = av_strdup(arg);
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static int opt_abort_on(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     static const AVOption opts[] = {
 | |
|         { "abort_on"           , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, (double)INT64_MAX,   .unit = "flags" },
 | |
|         { "empty_output"       , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = ABORT_ON_FLAG_EMPTY_OUTPUT        }, .unit = "flags" },
 | |
|         { "empty_output_stream", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM }, .unit = "flags" },
 | |
|         { NULL },
 | |
|     };
 | |
|     static const AVClass class = {
 | |
|         .class_name = "",
 | |
|         .item_name  = av_default_item_name,
 | |
|         .option     = opts,
 | |
|         .version    = LIBAVUTIL_VERSION_INT,
 | |
|     };
 | |
|     const AVClass *pclass = &class;
 | |
| 
 | |
|     return av_opt_eval_flags(&pclass, &opts[0], arg, &abort_on_flags);
 | |
| }
 | |
| 
 | |
| static int opt_stats_period(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     int64_t user_stats_period;
 | |
|     int ret = av_parse_time(&user_stats_period, arg, 1);
 | |
|     if (ret < 0)
 | |
|         return ret;
 | |
| 
 | |
|     if (user_stats_period <= 0) {
 | |
|         av_log(NULL, AV_LOG_ERROR, "stats_period %s must be positive.\n", arg);
 | |
|         return AVERROR(EINVAL);
 | |
|     }
 | |
| 
 | |
|     stats_period = user_stats_period;
 | |
|     av_log(NULL, AV_LOG_INFO, "ffmpeg stats and -progress period set to %s.\n", arg);
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     return parse_option(o, "codec:a", arg, options);
 | |
| }
 | |
| 
 | |
| static int opt_video_codec(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     return parse_option(o, "codec:v", arg, options);
 | |
| }
 | |
| 
 | |
| static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     return parse_option(o, "codec:s", arg, options);
 | |
| }
 | |
| 
 | |
| static int opt_data_codec(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     return parse_option(o, "codec:d", arg, options);
 | |
| }
 | |
| 
 | |
| static int opt_map(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     StreamMap *m = NULL;
 | |
|     int i, negative = 0, file_idx, disabled = 0;
 | |
|     int ret;
 | |
|     char *map, *p;
 | |
|     char *allow_unused;
 | |
| 
 | |
|     if (*arg == '-') {
 | |
|         negative = 1;
 | |
|         arg++;
 | |
|     }
 | |
|     map = av_strdup(arg);
 | |
|     if (!map)
 | |
|         return AVERROR(ENOMEM);
 | |
| 
 | |
|     if (map[0] == '[') {
 | |
|         /* this mapping refers to lavfi output */
 | |
|         const char *c = map + 1;
 | |
| 
 | |
|         ret = GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
 | |
|         if (ret < 0)
 | |
|             goto fail;
 | |
| 
 | |
|         m = &o->stream_maps[o->nb_stream_maps - 1];
 | |
|         m->linklabel = av_get_token(&c, "]");
 | |
|         if (!m->linklabel) {
 | |
|             av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
 | |
|             ret = AVERROR(EINVAL);
 | |
|             goto fail;
 | |
|         }
 | |
|     } else {
 | |
|         if (allow_unused = strchr(map, '?'))
 | |
|             *allow_unused = 0;
 | |
|         file_idx = strtol(map, &p, 0);
 | |
|         if (file_idx >= nb_input_files || file_idx < 0) {
 | |
|             av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
 | |
|             ret = AVERROR(EINVAL);
 | |
|             goto fail;
 | |
|         }
 | |
|         if (negative)
 | |
|             /* disable some already defined maps */
 | |
|             for (i = 0; i < o->nb_stream_maps; i++) {
 | |
|                 m = &o->stream_maps[i];
 | |
|                 if (file_idx == m->file_index &&
 | |
|                     check_stream_specifier(input_files[m->file_index]->ctx,
 | |
|                                            input_files[m->file_index]->ctx->streams[m->stream_index],
 | |
|                                            *p == ':' ? p + 1 : p) > 0)
 | |
|                     m->disabled = 1;
 | |
|             }
 | |
|         else
 | |
|             for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
 | |
|                 if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
 | |
|                             *p == ':' ? p + 1 : p) <= 0)
 | |
|                     continue;
 | |
|                 if (input_files[file_idx]->streams[i]->user_set_discard == AVDISCARD_ALL) {
 | |
|                     disabled = 1;
 | |
|                     continue;
 | |
|                 }
 | |
|                 ret = GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
 | |
|                 if (ret < 0)
 | |
|                     goto fail;
 | |
| 
 | |
|                 m = &o->stream_maps[o->nb_stream_maps - 1];
 | |
| 
 | |
|                 m->file_index   = file_idx;
 | |
|                 m->stream_index = i;
 | |
|             }
 | |
|     }
 | |
| 
 | |
|     if (!m) {
 | |
|         if (allow_unused) {
 | |
|             av_log(NULL, AV_LOG_VERBOSE, "Stream map '%s' matches no streams; ignoring.\n", arg);
 | |
|         } else if (disabled) {
 | |
|             av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches disabled streams.\n"
 | |
|                                        "To ignore this, add a trailing '?' to the map.\n", arg);
 | |
|             ret = AVERROR(EINVAL);
 | |
|             goto fail;
 | |
|         } else {
 | |
|             av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n"
 | |
|                                        "To ignore this, add a trailing '?' to the map.\n", arg);
 | |
|             ret = AVERROR(EINVAL);
 | |
|             goto fail;
 | |
|         }
 | |
|     }
 | |
|     ret = 0;
 | |
| fail:
 | |
|     av_freep(&map);
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| static int opt_attach(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     int ret = GROW_ARRAY(o->attachments, o->nb_attachments);
 | |
|     if (ret < 0)
 | |
|         return ret;
 | |
| 
 | |
|     o->attachments[o->nb_attachments - 1] = av_strdup(arg);
 | |
|     if (!o->attachments[o->nb_attachments - 1])
 | |
|         return AVERROR(ENOMEM);
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static int opt_sdp_file(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     Scheduler *sch = optctx;
 | |
|     return sch_sdp_filename(sch, arg);
 | |
| }
 | |
| 
 | |
| #if CONFIG_VAAPI
 | |
| static int opt_vaapi_device(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     const char *prefix = "vaapi:";
 | |
|     char *tmp;
 | |
|     int err;
 | |
|     tmp = av_asprintf("%s%s", prefix, arg);
 | |
|     if (!tmp)
 | |
|         return AVERROR(ENOMEM);
 | |
|     err = hw_device_init_from_string(tmp, NULL);
 | |
|     av_free(tmp);
 | |
|     return err;
 | |
| }
 | |
| #endif
 | |
| 
 | |
| #if CONFIG_QSV
 | |
| static int opt_qsv_device(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     const char *prefix = "qsv=__qsv_device:hw_any,child_device=";
 | |
|     int err;
 | |
|     char *tmp = av_asprintf("%s%s", prefix, arg);
 | |
| 
 | |
|     if (!tmp)
 | |
|         return AVERROR(ENOMEM);
 | |
| 
 | |
|     err = hw_device_init_from_string(tmp, NULL);
 | |
|     av_free(tmp);
 | |
| 
 | |
|     return err;
 | |
| }
 | |
| #endif
 | |
| 
 | |
| static int opt_init_hw_device(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     if (!strcmp(arg, "list")) {
 | |
|         enum AVHWDeviceType type = AV_HWDEVICE_TYPE_NONE;
 | |
|         printf("Supported hardware device types:\n");
 | |
|         while ((type = av_hwdevice_iterate_types(type)) !=
 | |
|                AV_HWDEVICE_TYPE_NONE)
 | |
|             printf("%s\n", av_hwdevice_get_type_name(type));
 | |
|         printf("\n");
 | |
|         return AVERROR_EXIT;
 | |
|     } else {
 | |
|         return hw_device_init_from_string(arg, NULL);
 | |
|     }
 | |
| }
 | |
| 
 | |
| static int opt_filter_hw_device(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     if (filter_hw_device) {
 | |
|         av_log(NULL, AV_LOG_ERROR, "Only one filter device can be used.\n");
 | |
|         return AVERROR(EINVAL);
 | |
|     }
 | |
|     filter_hw_device = hw_device_get_by_name(arg);
 | |
|     if (!filter_hw_device) {
 | |
|         av_log(NULL, AV_LOG_ERROR, "Invalid filter device %s.\n", arg);
 | |
|         return AVERROR(EINVAL);
 | |
|     }
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     char buf[128];
 | |
|     int64_t recording_timestamp;
 | |
|     int ret;
 | |
|     struct tm time;
 | |
| 
 | |
|     ret = av_parse_time(&recording_timestamp, arg, 0);
 | |
|     if (ret < 0)
 | |
|         return ret;
 | |
| 
 | |
|     recording_timestamp /= 1e6;
 | |
|     time = *gmtime((time_t*)&recording_timestamp);
 | |
|     if (!strftime(buf, sizeof(buf), "creation_time=%Y-%m-%dT%H:%M:%S%z", &time))
 | |
|         return -1;
 | |
|     parse_option(o, "metadata", buf, options);
 | |
| 
 | |
|     av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
 | |
|                                  "tag instead.\n", opt);
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| int find_codec(void *logctx, const char *name,
 | |
|                enum AVMediaType type, int encoder, const AVCodec **pcodec)
 | |
| {
 | |
|     const AVCodecDescriptor *desc;
 | |
|     const char *codec_string = encoder ? "encoder" : "decoder";
 | |
|     const AVCodec *codec;
 | |
| 
 | |
|     codec = encoder ?
 | |
|         avcodec_find_encoder_by_name(name) :
 | |
|         avcodec_find_decoder_by_name(name);
 | |
| 
 | |
|     if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
 | |
|         codec = encoder ? avcodec_find_encoder(desc->id) :
 | |
|                           avcodec_find_decoder(desc->id);
 | |
|         if (codec)
 | |
|             av_log(logctx, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
 | |
|                    codec_string, codec->name, desc->name);
 | |
|     }
 | |
| 
 | |
|     if (!codec) {
 | |
|         av_log(logctx, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
 | |
|         return encoder ? AVERROR_ENCODER_NOT_FOUND :
 | |
|                          AVERROR_DECODER_NOT_FOUND;
 | |
|     }
 | |
|     if (codec->type != type && !recast_media) {
 | |
|         av_log(logctx, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
 | |
|         return AVERROR(EINVAL);
 | |
|     }
 | |
| 
 | |
|     *pcodec = codec;
 | |
|     return 0;;
 | |
| }
 | |
| 
 | |
| int assert_file_overwrite(const char *filename)
 | |
| {
 | |
|     const char *proto_name = avio_find_protocol_name(filename);
 | |
| 
 | |
|     if (file_overwrite && no_file_overwrite) {
 | |
|         fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
 | |
|         return AVERROR(EINVAL);
 | |
|     }
 | |
| 
 | |
|     if (!file_overwrite) {
 | |
|         if (proto_name && !strcmp(proto_name, "file") && avio_check(filename, 0) == 0) {
 | |
|             if (stdin_interaction && !no_file_overwrite) {
 | |
|                 fprintf(stderr,"File '%s' already exists. Overwrite? [y/N] ", filename);
 | |
|                 fflush(stderr);
 | |
|                 term_exit();
 | |
|                 signal(SIGINT, SIG_DFL);
 | |
|                 if (!read_yesno()) {
 | |
|                     av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
 | |
|                     return AVERROR_EXIT;
 | |
|                 }
 | |
|                 term_init();
 | |
|             }
 | |
|             else {
 | |
|                 av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
 | |
|                 return AVERROR_EXIT;
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     if (proto_name && !strcmp(proto_name, "file")) {
 | |
|         for (int i = 0; i < nb_input_files; i++) {
 | |
|              InputFile *file = input_files[i];
 | |
|              if (file->ctx->iformat->flags & AVFMT_NOFILE)
 | |
|                  continue;
 | |
|              if (!strcmp(filename, file->ctx->url)) {
 | |
|                  av_log(NULL, AV_LOG_FATAL, "Output %s same as Input #%d - exiting\n", filename, i);
 | |
|                  av_log(NULL, AV_LOG_WARNING, "FFmpeg cannot edit existing files in-place.\n");
 | |
|                  return AVERROR(EINVAL);
 | |
|              }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| /* arg format is "output-stream-index:streamid-value". */
 | |
| static int opt_streamid(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     char *p;
 | |
|     char idx_str[16];
 | |
| 
 | |
|     av_strlcpy(idx_str, arg, sizeof(idx_str));
 | |
|     p = strchr(idx_str, ':');
 | |
|     if (!p) {
 | |
|         av_log(NULL, AV_LOG_FATAL,
 | |
|                "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
 | |
|                arg, opt);
 | |
|         return AVERROR(EINVAL);
 | |
|     }
 | |
|     *p++ = '\0';
 | |
| 
 | |
|     return av_dict_set(&o->streamid, idx_str, p, 0);
 | |
| }
 | |
| 
 | |
| static int opt_target(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
 | |
|     static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
 | |
| 
 | |
|     if (!strncmp(arg, "pal-", 4)) {
 | |
|         norm = PAL;
 | |
|         arg += 4;
 | |
|     } else if (!strncmp(arg, "ntsc-", 5)) {
 | |
|         norm = NTSC;
 | |
|         arg += 5;
 | |
|     } else if (!strncmp(arg, "film-", 5)) {
 | |
|         norm = FILM;
 | |
|         arg += 5;
 | |
|     } else {
 | |
|         /* Try to determine PAL/NTSC by peeking in the input files */
 | |
|         if (nb_input_files) {
 | |
|             int i, j;
 | |
|             for (j = 0; j < nb_input_files; j++) {
 | |
|                 for (i = 0; i < input_files[j]->nb_streams; i++) {
 | |
|                     AVStream *st = input_files[j]->ctx->streams[i];
 | |
|                     int64_t fr;
 | |
|                     if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
 | |
|                         continue;
 | |
|                     fr = st->time_base.den * 1000LL / st->time_base.num;
 | |
|                     if (fr == 25000) {
 | |
|                         norm = PAL;
 | |
|                         break;
 | |
|                     } else if ((fr == 29970) || (fr == 23976)) {
 | |
|                         norm = NTSC;
 | |
|                         break;
 | |
|                     }
 | |
|                 }
 | |
|                 if (norm != UNKNOWN)
 | |
|                     break;
 | |
|             }
 | |
|         }
 | |
|         if (norm != UNKNOWN)
 | |
|             av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
 | |
|     }
 | |
| 
 | |
|     if (norm == UNKNOWN) {
 | |
|         av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
 | |
|         av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
 | |
|         av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
 | |
|         return AVERROR(EINVAL);
 | |
|     }
 | |
| 
 | |
|     if (!strcmp(arg, "vcd")) {
 | |
|         opt_video_codec(o, "c:v", "mpeg1video");
 | |
|         opt_audio_codec(o, "c:a", "mp2");
 | |
|         parse_option(o, "f", "vcd", options);
 | |
| 
 | |
|         parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
 | |
|         parse_option(o, "r", frame_rates[norm], options);
 | |
|         opt_default(NULL, "g", norm == PAL ? "15" : "18");
 | |
| 
 | |
|         opt_default(NULL, "b:v", "1150000");
 | |
|         opt_default(NULL, "maxrate:v", "1150000");
 | |
|         opt_default(NULL, "minrate:v", "1150000");
 | |
|         opt_default(NULL, "bufsize:v", "327680"); // 40*1024*8;
 | |
| 
 | |
|         opt_default(NULL, "b:a", "224000");
 | |
|         parse_option(o, "ar", "44100", options);
 | |
|         parse_option(o, "ac", "2", options);
 | |
| 
 | |
|         opt_default(NULL, "packetsize", "2324");
 | |
|         opt_default(NULL, "muxrate", "1411200"); // 2352 * 75 * 8;
 | |
| 
 | |
|         /* We have to offset the PTS, so that it is consistent with the SCR.
 | |
|            SCR starts at 36000, but the first two packs contain only padding
 | |
|            and the first pack from the other stream, respectively, may also have
 | |
|            been written before.
 | |
|            So the real data starts at SCR 36000+3*1200. */
 | |
|         o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
 | |
|     } else if (!strcmp(arg, "svcd")) {
 | |
| 
 | |
|         opt_video_codec(o, "c:v", "mpeg2video");
 | |
|         opt_audio_codec(o, "c:a", "mp2");
 | |
|         parse_option(o, "f", "svcd", options);
 | |
| 
 | |
|         parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
 | |
|         parse_option(o, "r", frame_rates[norm], options);
 | |
|         parse_option(o, "pix_fmt", "yuv420p", options);
 | |
|         opt_default(NULL, "g", norm == PAL ? "15" : "18");
 | |
| 
 | |
|         opt_default(NULL, "b:v", "2040000");
 | |
|         opt_default(NULL, "maxrate:v", "2516000");
 | |
|         opt_default(NULL, "minrate:v", "0"); // 1145000;
 | |
|         opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
 | |
|         opt_default(NULL, "scan_offset", "1");
 | |
| 
 | |
|         opt_default(NULL, "b:a", "224000");
 | |
|         parse_option(o, "ar", "44100", options);
 | |
| 
 | |
|         opt_default(NULL, "packetsize", "2324");
 | |
| 
 | |
|     } else if (!strcmp(arg, "dvd")) {
 | |
| 
 | |
|         opt_video_codec(o, "c:v", "mpeg2video");
 | |
|         opt_audio_codec(o, "c:a", "ac3");
 | |
|         parse_option(o, "f", "dvd", options);
 | |
| 
 | |
|         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
 | |
|         parse_option(o, "r", frame_rates[norm], options);
 | |
|         parse_option(o, "pix_fmt", "yuv420p", options);
 | |
|         opt_default(NULL, "g", norm == PAL ? "15" : "18");
 | |
| 
 | |
|         opt_default(NULL, "b:v", "6000000");
 | |
|         opt_default(NULL, "maxrate:v", "9000000");
 | |
|         opt_default(NULL, "minrate:v", "0"); // 1500000;
 | |
|         opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
 | |
| 
 | |
|         opt_default(NULL, "packetsize", "2048");  // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
 | |
|         opt_default(NULL, "muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
 | |
| 
 | |
|         opt_default(NULL, "b:a", "448000");
 | |
|         parse_option(o, "ar", "48000", options);
 | |
| 
 | |
|     } else if (!strncmp(arg, "dv", 2)) {
 | |
| 
 | |
|         parse_option(o, "f", "dv", options);
 | |
| 
 | |
|         parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
 | |
|         parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
 | |
|                           norm == PAL ? "yuv420p" : "yuv411p", options);
 | |
|         parse_option(o, "r", frame_rates[norm], options);
 | |
| 
 | |
|         parse_option(o, "ar", "48000", options);
 | |
|         parse_option(o, "ac", "2", options);
 | |
| 
 | |
|     } else {
 | |
|         av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
 | |
|         return AVERROR(EINVAL);
 | |
|     }
 | |
| 
 | |
|     av_dict_copy(&o->g->codec_opts,  codec_opts, AV_DICT_DONT_OVERWRITE);
 | |
|     av_dict_copy(&o->g->format_opts, format_opts, AV_DICT_DONT_OVERWRITE);
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     av_free (vstats_filename);
 | |
|     vstats_filename = av_strdup (arg);
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static int opt_vstats(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     char filename[40];
 | |
|     time_t today2 = time(NULL);
 | |
|     struct tm *today = localtime(&today2);
 | |
| 
 | |
|     if (!today) { // maybe tomorrow
 | |
|         av_log(NULL, AV_LOG_FATAL, "Unable to get current time: %s\n", strerror(errno));
 | |
|         return AVERROR(errno);
 | |
|     }
 | |
| 
 | |
|     snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
 | |
|              today->tm_sec);
 | |
|     return opt_vstats_file(NULL, opt, filename);
 | |
| }
 | |
| 
 | |
| static int opt_video_frames(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     return parse_option(o, "frames:v", arg, options);
 | |
| }
 | |
| 
 | |
| static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     return parse_option(o, "frames:a", arg, options);
 | |
| }
 | |
| 
 | |
| static int opt_data_frames(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     return parse_option(o, "frames:d", arg, options);
 | |
| }
 | |
| 
 | |
| static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
 | |
| {
 | |
|     int ret;
 | |
|     AVDictionary *cbak = codec_opts;
 | |
|     AVDictionary *fbak = format_opts;
 | |
|     codec_opts = NULL;
 | |
|     format_opts = NULL;
 | |
| 
 | |
|     ret = opt_default(NULL, opt, arg);
 | |
| 
 | |
|     av_dict_copy(&o->g->codec_opts , codec_opts, 0);
 | |
|     av_dict_copy(&o->g->format_opts, format_opts, 0);
 | |
|     av_dict_free(&codec_opts);
 | |
|     av_dict_free(&format_opts);
 | |
|     codec_opts = cbak;
 | |
|     format_opts = fbak;
 | |
| 
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| static int opt_preset(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     FILE *f=NULL;
 | |
|     char filename[1000], line[1000], tmp_line[1000];
 | |
|     const char *codec_name = NULL;
 | |
|     int ret = 0;
 | |
| 
 | |
|     codec_name = opt_match_per_type_str(&o->codec_names, *opt);
 | |
| 
 | |
|     if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
 | |
|         if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
 | |
|             av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
 | |
|         }else
 | |
|             av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
 | |
|         return AVERROR(ENOENT);
 | |
|     }
 | |
| 
 | |
|     while (fgets(line, sizeof(line), f)) {
 | |
|         char *key = tmp_line, *value, *endptr;
 | |
| 
 | |
|         if (strcspn(line, "#\n\r") == 0)
 | |
|             continue;
 | |
|         av_strlcpy(tmp_line, line, sizeof(tmp_line));
 | |
|         if (!av_strtok(key,   "=",    &value) ||
 | |
|             !av_strtok(value, "\r\n", &endptr)) {
 | |
|             av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
 | |
|             ret = AVERROR(EINVAL);
 | |
|             goto fail;
 | |
|         }
 | |
|         av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
 | |
| 
 | |
|         if      (!strcmp(key, "acodec")) opt_audio_codec   (o, key, value);
 | |
|         else if (!strcmp(key, "vcodec")) opt_video_codec   (o, key, value);
 | |
|         else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
 | |
|         else if (!strcmp(key, "dcodec")) opt_data_codec    (o, key, value);
 | |
|         else if (opt_default_new(o, key, value) < 0) {
 | |
|             av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
 | |
|                    filename, line, key, value);
 | |
|             ret = AVERROR(EINVAL);
 | |
|             goto fail;
 | |
|         }
 | |
|     }
 | |
| 
 | |
| fail:
 | |
|     fclose(f);
 | |
| 
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| static int opt_old2new(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     int ret;
 | |
|     char *s = av_asprintf("%s:%c", opt + 1, *opt);
 | |
|     if (!s)
 | |
|         return AVERROR(ENOMEM);
 | |
|     ret = parse_option(o, s, arg, options);
 | |
|     av_free(s);
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| static int opt_bitrate(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
| 
 | |
|     if(!strcmp(opt, "ab")){
 | |
|         av_dict_set(&o->g->codec_opts, "b:a", arg, 0);
 | |
|         return 0;
 | |
|     } else if(!strcmp(opt, "b")){
 | |
|         av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
 | |
|         av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
 | |
|         return 0;
 | |
|     }
 | |
|     av_dict_set(&o->g->codec_opts, opt, arg, 0);
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static int opt_qscale(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     char *s;
 | |
|     int ret;
 | |
|     if(!strcmp(opt, "qscale")){
 | |
|         av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
 | |
|         return parse_option(o, "q:v", arg, options);
 | |
|     }
 | |
|     s = av_asprintf("q%s", opt + 6);
 | |
|     if (!s)
 | |
|         return AVERROR(ENOMEM);
 | |
|     ret = parse_option(o, s, arg, options);
 | |
|     av_free(s);
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| static int opt_profile(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     if(!strcmp(opt, "profile")){
 | |
|         av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
 | |
|         av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
 | |
|         return 0;
 | |
|     }
 | |
|     av_dict_set(&o->g->codec_opts, opt, arg, 0);
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| static int opt_video_filters(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     return parse_option(o, "filter:v", arg, options);
 | |
| }
 | |
| 
 | |
| static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     return parse_option(o, "filter:a", arg, options);
 | |
| }
 | |
| 
 | |
| #if FFMPEG_OPT_VSYNC
 | |
| static int opt_vsync(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     av_log(NULL, AV_LOG_WARNING, "-vsync is deprecated. Use -fps_mode\n");
 | |
|     return parse_and_set_vsync(arg, &video_sync_method, -1, -1, 1);
 | |
| }
 | |
| #endif
 | |
| 
 | |
| static int opt_timecode(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     int ret;
 | |
|     char *tcr = av_asprintf("timecode=%s", arg);
 | |
|     if (!tcr)
 | |
|         return AVERROR(ENOMEM);
 | |
|     ret = parse_option(o, "metadata:g", tcr, options);
 | |
|     if (ret >= 0)
 | |
|         ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
 | |
|     av_free(tcr);
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     OptionsContext *o = optctx;
 | |
|     return parse_option(o, "q:a", arg, options);
 | |
| }
 | |
| 
 | |
| static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     Scheduler *sch = optctx;
 | |
|     char *graph_desc = av_strdup(arg);
 | |
|     if (!graph_desc)
 | |
|         return AVERROR(ENOMEM);
 | |
| 
 | |
|     return fg_create(NULL, graph_desc, sch);
 | |
| }
 | |
| 
 | |
| #if FFMPEG_OPT_FILTER_SCRIPT
 | |
| static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     Scheduler *sch = optctx;
 | |
|     char *graph_desc = file_read(arg);
 | |
|     if (!graph_desc)
 | |
|         return AVERROR(EINVAL);
 | |
| 
 | |
|     av_log(NULL, AV_LOG_WARNING, "-%s is deprecated, use -/filter_complex %s instead\n",
 | |
|            opt, arg);
 | |
| 
 | |
|     return fg_create(NULL, graph_desc, sch);
 | |
| }
 | |
| #endif
 | |
| 
 | |
| void show_help_default(const char *opt, const char *arg)
 | |
| {
 | |
|     int show_advanced = 0, show_avoptions = 0;
 | |
| 
 | |
|     if (opt && *opt) {
 | |
|         if (!strcmp(opt, "long"))
 | |
|             show_advanced = 1;
 | |
|         else if (!strcmp(opt, "full"))
 | |
|             show_advanced = show_avoptions = 1;
 | |
|         else
 | |
|             av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
 | |
|     }
 | |
| 
 | |
|     show_usage();
 | |
| 
 | |
|     printf("Getting help:\n"
 | |
|            "    -h      -- print basic options\n"
 | |
|            "    -h long -- print more options\n"
 | |
|            "    -h full -- print all options (including all format and codec specific options, very long)\n"
 | |
|            "    -h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter/bsf/protocol\n"
 | |
|            "    See man %s for detailed description of the options.\n"
 | |
|            "\n"
 | |
|            "Per-stream options can be followed by :<stream_spec> to apply that option to specific streams only. "
 | |
|            "<stream_spec> can be a stream index, or v/a/s for video/audio/subtitle (see manual for full syntax).\n"
 | |
|            "\n", program_name);
 | |
| 
 | |
|     show_help_options(options, "Print help / information / capabilities:",
 | |
|                       OPT_EXIT, OPT_EXPERT);
 | |
|     if (show_advanced)
 | |
|         show_help_options(options, "Advanced information / capabilities:",
 | |
|                           OPT_EXIT | OPT_EXPERT, 0);
 | |
| 
 | |
|     show_help_options(options, "Global options (affect whole program "
 | |
|                       "instead of just one file):",
 | |
|                       0, OPT_PERFILE | OPT_EXIT | OPT_EXPERT);
 | |
|     if (show_advanced)
 | |
|         show_help_options(options, "Advanced global options:", OPT_EXPERT,
 | |
|                           OPT_PERFILE | OPT_EXIT);
 | |
| 
 | |
|     show_help_options(options, "Per-file options (input and output):",
 | |
|                       OPT_PERFILE | OPT_INPUT | OPT_OUTPUT,
 | |
|                       OPT_EXIT | OPT_FLAG_PERSTREAM | OPT_EXPERT |
 | |
|                       OPT_VIDEO | OPT_AUDIO | OPT_SUBTITLE | OPT_DATA);
 | |
|     if (show_advanced)
 | |
|         show_help_options(options, "Advanced per-file options (input and output):",
 | |
|                           OPT_PERFILE | OPT_INPUT | OPT_OUTPUT | OPT_EXPERT,
 | |
|                           OPT_EXIT | OPT_FLAG_PERSTREAM |
 | |
|                           OPT_VIDEO | OPT_AUDIO | OPT_SUBTITLE | OPT_DATA);
 | |
| 
 | |
|     show_help_options(options, "Per-file options (input-only):",
 | |
|                       OPT_PERFILE | OPT_INPUT,
 | |
|                       OPT_EXIT | OPT_FLAG_PERSTREAM | OPT_OUTPUT | OPT_EXPERT |
 | |
|                       OPT_VIDEO | OPT_AUDIO | OPT_SUBTITLE | OPT_DATA);
 | |
|     if (show_advanced)
 | |
|         show_help_options(options, "Advanced per-file options (input-only):",
 | |
|                           OPT_PERFILE | OPT_INPUT | OPT_EXPERT,
 | |
|                           OPT_EXIT | OPT_FLAG_PERSTREAM | OPT_OUTPUT |
 | |
|                           OPT_VIDEO | OPT_AUDIO | OPT_SUBTITLE | OPT_DATA);
 | |
| 
 | |
|     show_help_options(options, "Per-file options (output-only):",
 | |
|                       OPT_PERFILE | OPT_OUTPUT,
 | |
|                       OPT_EXIT | OPT_FLAG_PERSTREAM | OPT_INPUT | OPT_EXPERT |
 | |
|                       OPT_VIDEO | OPT_AUDIO | OPT_SUBTITLE | OPT_DATA);
 | |
|     if (show_advanced)
 | |
|         show_help_options(options, "Advanced per-file options (output-only):",
 | |
|                           OPT_PERFILE | OPT_OUTPUT | OPT_EXPERT,
 | |
|                           OPT_EXIT | OPT_FLAG_PERSTREAM | OPT_INPUT |
 | |
|                           OPT_VIDEO | OPT_AUDIO | OPT_SUBTITLE | OPT_DATA);
 | |
| 
 | |
|     show_help_options(options, "Per-stream options:",
 | |
|                       OPT_FLAG_PERSTREAM,
 | |
|                       OPT_EXIT | OPT_EXPERT |
 | |
|                       OPT_VIDEO | OPT_AUDIO | OPT_SUBTITLE | OPT_DATA);
 | |
|     if (show_advanced)
 | |
|         show_help_options(options, "Advanced per-stream options:",
 | |
|                           OPT_FLAG_PERSTREAM | OPT_EXPERT,
 | |
|                           OPT_EXIT |
 | |
|                           OPT_VIDEO | OPT_AUDIO | OPT_SUBTITLE | OPT_DATA);
 | |
| 
 | |
|     show_help_options(options, "Video options:",
 | |
|                       OPT_VIDEO, OPT_EXPERT | OPT_AUDIO | OPT_SUBTITLE | OPT_DATA);
 | |
|     if (show_advanced)
 | |
|         show_help_options(options, "Advanced Video options:",
 | |
|                           OPT_EXPERT | OPT_VIDEO, OPT_AUDIO | OPT_SUBTITLE | OPT_DATA);
 | |
| 
 | |
|     show_help_options(options, "Audio options:",
 | |
|                       OPT_AUDIO, OPT_EXPERT | OPT_VIDEO | OPT_SUBTITLE | OPT_DATA);
 | |
|     if (show_advanced)
 | |
|         show_help_options(options, "Advanced Audio options:",
 | |
|                           OPT_EXPERT | OPT_AUDIO, OPT_VIDEO | OPT_SUBTITLE | OPT_DATA);
 | |
| 
 | |
|     show_help_options(options, "Subtitle options:",
 | |
|                       OPT_SUBTITLE, OPT_EXPERT | OPT_VIDEO | OPT_AUDIO | OPT_DATA);
 | |
|     if (show_advanced)
 | |
|         show_help_options(options, "Advanced Subtitle options:",
 | |
|                           OPT_EXPERT | OPT_SUBTITLE, OPT_VIDEO | OPT_AUDIO | OPT_DATA);
 | |
| 
 | |
|     if (show_advanced)
 | |
|         show_help_options(options, "Data stream options:",
 | |
|                           OPT_DATA, OPT_VIDEO | OPT_AUDIO | OPT_SUBTITLE);
 | |
|     printf("\n");
 | |
| 
 | |
|     if (show_avoptions) {
 | |
|         int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
 | |
|         show_help_children(avcodec_get_class(), flags);
 | |
|         show_help_children(avformat_get_class(), flags);
 | |
| #if CONFIG_SWSCALE
 | |
|         show_help_children(sws_get_class(), flags);
 | |
| #endif
 | |
| #if CONFIG_SWRESAMPLE
 | |
|         show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
 | |
| #endif
 | |
|         show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
 | |
|         show_help_children(av_bsf_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_BSF_PARAM);
 | |
|     }
 | |
| }
 | |
| 
 | |
| void show_usage(void)
 | |
| {
 | |
|     av_log(NULL, AV_LOG_INFO, "Universal media converter\n");
 | |
|     av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
 | |
|     av_log(NULL, AV_LOG_INFO, "\n");
 | |
| }
 | |
| 
 | |
| enum OptGroup {
 | |
|     GROUP_OUTFILE,
 | |
|     GROUP_INFILE,
 | |
|     GROUP_DECODER,
 | |
| };
 | |
| 
 | |
| static const OptionGroupDef groups[] = {
 | |
|     [GROUP_OUTFILE] = { "output url",  NULL, OPT_OUTPUT },
 | |
|     [GROUP_INFILE]  = { "input url",   "i",  OPT_INPUT },
 | |
|     [GROUP_DECODER] = { "loopback decoder", "dec", OPT_DECODER },
 | |
| };
 | |
| 
 | |
| static int open_files(OptionGroupList *l, const char *inout, Scheduler *sch,
 | |
|                       int (*open_file)(const OptionsContext*, const char*,
 | |
|                                        Scheduler*))
 | |
| {
 | |
|     int i, ret;
 | |
| 
 | |
|     for (i = 0; i < l->nb_groups; i++) {
 | |
|         OptionGroup *g = &l->groups[i];
 | |
|         OptionsContext o;
 | |
| 
 | |
|         init_options(&o);
 | |
|         o.g = g;
 | |
| 
 | |
|         ret = parse_optgroup(&o, g, options);
 | |
|         if (ret < 0) {
 | |
|             av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
 | |
|                    "%s.\n", inout, g->arg);
 | |
|             uninit_options(&o);
 | |
|             return ret;
 | |
|         }
 | |
| 
 | |
|         av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
 | |
|         ret = open_file(&o, g->arg, sch);
 | |
|         uninit_options(&o);
 | |
|         if (ret < 0) {
 | |
|             av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
 | |
|                    inout, g->arg);
 | |
|             return ret;
 | |
|         }
 | |
|         av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
 | |
|     }
 | |
| 
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| int ffmpeg_parse_options(int argc, char **argv, Scheduler *sch)
 | |
| {
 | |
|     OptionParseContext octx;
 | |
|     const char *errmsg = NULL;
 | |
|     int ret;
 | |
| 
 | |
|     memset(&octx, 0, sizeof(octx));
 | |
| 
 | |
|     /* split the commandline into an internal representation */
 | |
|     ret = split_commandline(&octx, argc, argv, options, groups,
 | |
|                             FF_ARRAY_ELEMS(groups));
 | |
|     if (ret < 0) {
 | |
|         errmsg = "splitting the argument list";
 | |
|         goto fail;
 | |
|     }
 | |
| 
 | |
|     /* apply global options */
 | |
|     ret = parse_optgroup(sch, &octx.global_opts, options);
 | |
|     if (ret < 0) {
 | |
|         errmsg = "parsing global options";
 | |
|         goto fail;
 | |
|     }
 | |
| 
 | |
|     /* configure terminal and setup signal handlers */
 | |
|     term_init();
 | |
| 
 | |
|     /* open input files */
 | |
|     ret = open_files(&octx.groups[GROUP_INFILE], "input", sch, ifile_open);
 | |
|     if (ret < 0) {
 | |
|         errmsg = "opening input files";
 | |
|         goto fail;
 | |
|     }
 | |
| 
 | |
|     /* open output files */
 | |
|     ret = open_files(&octx.groups[GROUP_OUTFILE], "output", sch, of_open);
 | |
|     if (ret < 0) {
 | |
|         errmsg = "opening output files";
 | |
|         goto fail;
 | |
|     }
 | |
| 
 | |
|     /* create loopback decoders */
 | |
|     ret = open_files(&octx.groups[GROUP_DECODER], "decoder", sch, dec_create);
 | |
|     if (ret < 0) {
 | |
|         errmsg = "creating loopback decoders";
 | |
|         goto fail;
 | |
|     }
 | |
| 
 | |
|     // bind unbound filtegraph inputs/outputs and check consistency
 | |
|     ret = fg_finalise_bindings();
 | |
|     if (ret < 0) {
 | |
|         errmsg = "binding filtergraph inputs/outputs";
 | |
|         goto fail;
 | |
|     }
 | |
| 
 | |
|     correct_input_start_times();
 | |
| 
 | |
|     ret = apply_sync_offsets();
 | |
|     if (ret < 0)
 | |
|         goto fail;
 | |
| 
 | |
| fail:
 | |
|     uninit_parse_context(&octx);
 | |
|     if (ret < 0 && ret != AVERROR_EXIT) {
 | |
|         av_log(NULL, AV_LOG_FATAL, "Error %s: %s\n",
 | |
|                errmsg ? errmsg : "", av_err2str(ret));
 | |
|     }
 | |
|     return ret;
 | |
| }
 | |
| 
 | |
| static int opt_progress(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     AVIOContext *avio = NULL;
 | |
|     int ret;
 | |
| 
 | |
|     if (!strcmp(arg, "-"))
 | |
|         arg = "pipe:";
 | |
|     ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
 | |
|     if (ret < 0) {
 | |
|         av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
 | |
|                arg, av_err2str(ret));
 | |
|         return ret;
 | |
|     }
 | |
|     progress_avio = avio;
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| int opt_timelimit(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
| #if HAVE_SETRLIMIT
 | |
|     int ret;
 | |
|     double lim;
 | |
|     struct rlimit rl;
 | |
| 
 | |
|     ret = parse_number(opt, arg, OPT_TYPE_INT64, 0, INT_MAX, &lim);
 | |
|     if (ret < 0)
 | |
|         return ret;
 | |
| 
 | |
|     rl = (struct rlimit){ lim, lim + 1 };
 | |
|     if (setrlimit(RLIMIT_CPU, &rl))
 | |
|         perror("setrlimit");
 | |
| #else
 | |
|     av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
 | |
| #endif
 | |
|     return 0;
 | |
| }
 | |
| 
 | |
| #if FFMPEG_OPT_QPHIST
 | |
| static int opt_qphist(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     av_log(NULL, AV_LOG_WARNING, "Option -%s is deprecated and has no effect\n", opt);
 | |
|     return 0;
 | |
| }
 | |
| #endif
 | |
| 
 | |
| #if FFMPEG_OPT_ADRIFT_THRESHOLD
 | |
| static int opt_adrift_threshold(void *optctx, const char *opt, const char *arg)
 | |
| {
 | |
|     av_log(NULL, AV_LOG_WARNING, "Option -%s is deprecated and has no effect\n", opt);
 | |
|     return 0;
 | |
| }
 | |
| #endif
 | |
| 
 | |
| static const char *const alt_bsf[]            = { "absf", "vbsf", NULL };
 | |
| static const char *const alt_channel_layout[] = { "ch_layout", NULL};
 | |
| static const char *const alt_codec[]          = { "c", "acodec", "vcodec", "scodec", "dcodec", NULL };
 | |
| static const char *const alt_filter[]         = { "af", "vf", NULL };
 | |
| static const char *const alt_frames[]         = { "aframes", "vframes", "dframes", NULL };
 | |
| static const char *const alt_pre[]            = { "apre", "vpre", "spre", NULL};
 | |
| static const char *const alt_qscale[]         = { "q", NULL};
 | |
| static const char *const alt_tag[]            = { "atag", "vtag", "stag", NULL };
 | |
| 
 | |
| #define OFFSET(x) offsetof(OptionsContext, x)
 | |
| const OptionDef options[] = {
 | |
|     /* main options */
 | |
|     CMDUTILS_COMMON_OPTIONS
 | |
|     { "f",                      OPT_TYPE_STRING, OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off       = OFFSET(format) },
 | |
|         "force container format (auto-detected otherwise)", "fmt" },
 | |
|     { "y",                      OPT_TYPE_BOOL, 0,
 | |
|         {              &file_overwrite },
 | |
|         "overwrite output files" },
 | |
|     { "n",                      OPT_TYPE_BOOL, 0,
 | |
|         {              &no_file_overwrite },
 | |
|         "never overwrite output files" },
 | |
|     { "ignore_unknown",         OPT_TYPE_BOOL, OPT_EXPERT,
 | |
|         {              &ignore_unknown_streams },
 | |
|         "Ignore unknown stream types" },
 | |
|     { "copy_unknown",           OPT_TYPE_BOOL, OPT_EXPERT,
 | |
|         {              ©_unknown_streams },
 | |
|         "Copy unknown stream types" },
 | |
|     { "recast_media",           OPT_TYPE_BOOL, OPT_EXPERT,
 | |
|         {              &recast_media },
 | |
|         "allow recasting stream type in order to force a decoder of different media type" },
 | |
|     { "c",                      OPT_TYPE_STRING, OPT_PERSTREAM | OPT_INPUT | OPT_OUTPUT | OPT_DECODER | OPT_HAS_CANON,
 | |
|         { .off       = OFFSET(codec_names) },
 | |
|         "select encoder/decoder ('copy' to copy stream without reencoding)", "codec",
 | |
|         .u1.name_canon = "codec", },
 | |
|     { "codec",                  OPT_TYPE_STRING, OPT_PERSTREAM | OPT_INPUT | OPT_OUTPUT | OPT_DECODER | OPT_EXPERT | OPT_HAS_ALT,
 | |
|         { .off       = OFFSET(codec_names) },
 | |
|         "alias for -c (select encoder/decoder)", "codec",
 | |
|         .u1.names_alt = alt_codec, },
 | |
|     { "pre",                    OPT_TYPE_STRING, OPT_PERSTREAM | OPT_OUTPUT | OPT_EXPERT | OPT_HAS_ALT,
 | |
|         { .off       = OFFSET(presets) },
 | |
|         "preset name", "preset",
 | |
|         .u1.names_alt = alt_pre, },
 | |
|     { "map",                    OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT,
 | |
|         { .func_arg = opt_map },
 | |
|         "set input stream mapping",
 | |
|         "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
 | |
|     { "map_metadata",           OPT_TYPE_STRING, OPT_SPEC | OPT_OUTPUT | OPT_EXPERT,
 | |
|         { .off       = OFFSET(metadata_map) },
 | |
|         "set metadata information of outfile from infile",
 | |
|         "outfile[,metadata]:infile[,metadata]" },
 | |
|     { "map_chapters",           OPT_TYPE_INT, OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT,
 | |
|         { .off = OFFSET(chapters_input_file) },
 | |
|         "set chapters mapping", "input_file_index" },
 | |
|     { "t",                      OPT_TYPE_TIME, OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(recording_time) },
 | |
|         "stop transcoding after specified duration",
 | |
|         "duration" },
 | |
|     { "to",                     OPT_TYPE_TIME, OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(stop_time) },
 | |
|         "stop transcoding after specified time is reached",
 | |
|         "time_stop" },
 | |
|     { "fs",                     OPT_TYPE_INT64, OPT_OFFSET | OPT_OUTPUT | OPT_EXPERT,
 | |
|         { .off = OFFSET(limit_filesize) },
 | |
|         "set the limit file size in bytes", "limit_size" },
 | |
|     { "ss",                     OPT_TYPE_TIME, OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(start_time) },
 | |
|         "start transcoding at specified time", "time_off" },
 | |
|     { "sseof",                  OPT_TYPE_TIME, OPT_OFFSET | OPT_INPUT | OPT_EXPERT,
 | |
|         { .off = OFFSET(start_time_eof) },
 | |
|         "set the start time offset relative to EOF", "time_off" },
 | |
|     { "seek_timestamp",         OPT_TYPE_INT, OPT_OFFSET | OPT_INPUT | OPT_EXPERT,
 | |
|         { .off = OFFSET(seek_timestamp) },
 | |
|         "enable/disable seeking by timestamp with -ss" },
 | |
|     { "accurate_seek",          OPT_TYPE_BOOL, OPT_OFFSET | OPT_EXPERT | OPT_INPUT,
 | |
|         { .off = OFFSET(accurate_seek) },
 | |
|         "enable/disable accurate seeking with -ss" },
 | |
|     { "isync",                  OPT_TYPE_INT, OPT_OFFSET | OPT_EXPERT | OPT_INPUT,
 | |
|         { .off = OFFSET(input_sync_ref) },
 | |
|         "Indicate the input index for sync reference", "sync ref" },
 | |
|     { "itsoffset",              OPT_TYPE_TIME, OPT_OFFSET | OPT_EXPERT | OPT_INPUT,
 | |
|         { .off = OFFSET(input_ts_offset) },
 | |
|         "set the input ts offset", "time_off" },
 | |
|     { "itsscale",               OPT_TYPE_DOUBLE, OPT_PERSTREAM | OPT_EXPERT | OPT_INPUT,
 | |
|         { .off = OFFSET(ts_scale) },
 | |
|         "set the input ts scale", "scale" },
 | |
|     { "timestamp",              OPT_TYPE_FUNC,   OPT_FUNC_ARG | OPT_PERFILE | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .func_arg = opt_recording_timestamp },
 | |
|         "set the recording timestamp ('now' to set the current time)", "time" },
 | |
|     { "metadata",               OPT_TYPE_STRING, OPT_SPEC | OPT_OUTPUT,
 | |
|         { .off = OFFSET(metadata) },
 | |
|         "add metadata", "key=value" },
 | |
|     { "program",                OPT_TYPE_STRING, OPT_SPEC | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(program) },
 | |
|         "add program with specified streams", "title=string:st=number..." },
 | |
|     { "stream_group",           OPT_TYPE_STRING, OPT_SPEC | OPT_OUTPUT | OPT_EXPERT,
 | |
|         { .off = OFFSET(stream_groups) },
 | |
|         "add stream group with specified streams and group type-specific arguments", "id=number:st=number..." },
 | |
|     { "dframes",                OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_PERFILE | OPT_EXPERT | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_data_frames },
 | |
|         "set the number of data frames to output", "number",
 | |
|         .u1.name_canon = "frames" },
 | |
|     { "benchmark",              OPT_TYPE_BOOL, OPT_EXPERT,
 | |
|         { &do_benchmark },
 | |
|         "add timings for benchmarking" },
 | |
|     { "benchmark_all",          OPT_TYPE_BOOL, OPT_EXPERT,
 | |
|         { &do_benchmark_all },
 | |
|       "add timings for each task" },
 | |
|     { "progress",               OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
 | |
|         { .func_arg = opt_progress },
 | |
|       "write program-readable progress information", "url" },
 | |
|     { "stdin",                  OPT_TYPE_BOOL, OPT_EXPERT,
 | |
|         { &stdin_interaction },
 | |
|       "enable or disable interaction on standard input" },
 | |
|     { "timelimit",              OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
 | |
|         { .func_arg = opt_timelimit },
 | |
|         "set max runtime in seconds in CPU user time", "limit" },
 | |
|     { "dump",                   OPT_TYPE_BOOL, OPT_EXPERT,
 | |
|         { &do_pkt_dump },
 | |
|         "dump each input packet" },
 | |
|     { "hex",                    OPT_TYPE_BOOL, OPT_EXPERT,
 | |
|         { &do_hex_dump },
 | |
|         "when dumping packets, also dump the payload" },
 | |
|     { "re",                     OPT_TYPE_BOOL, OPT_EXPERT | OPT_OFFSET | OPT_INPUT,
 | |
|         { .off = OFFSET(rate_emu) },
 | |
|         "read input at native frame rate; equivalent to -readrate 1", "" },
 | |
|     { "readrate",               OPT_TYPE_FLOAT, OPT_OFFSET | OPT_EXPERT | OPT_INPUT,
 | |
|         { .off = OFFSET(readrate) },
 | |
|         "read input at specified rate", "speed" },
 | |
|     { "readrate_initial_burst", OPT_TYPE_DOUBLE, OPT_OFFSET | OPT_EXPERT | OPT_INPUT,
 | |
|         { .off = OFFSET(readrate_initial_burst) },
 | |
|         "The initial amount of input to burst read before imposing any readrate", "seconds" },
 | |
|     { "target",                 OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_PERFILE | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .func_arg = opt_target },
 | |
|         "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\" or \"dv50\" "
 | |
|         "with optional prefixes \"pal-\", \"ntsc-\" or \"film-\")", "type" },
 | |
|     { "frame_drop_threshold",   OPT_TYPE_FLOAT, OPT_EXPERT,
 | |
|         { &frame_drop_threshold },
 | |
|         "frame drop threshold", "" },
 | |
|     { "copyts",                 OPT_TYPE_BOOL, OPT_EXPERT,
 | |
|         { ©_ts },
 | |
|         "copy timestamps" },
 | |
|     { "start_at_zero",          OPT_TYPE_BOOL, OPT_EXPERT,
 | |
|         { &start_at_zero },
 | |
|         "shift input timestamps to start at 0 when using copyts" },
 | |
|     { "copytb",                 OPT_TYPE_INT, OPT_EXPERT,
 | |
|         { ©_tb },
 | |
|         "copy input stream time base when stream copying", "mode" },
 | |
|     { "shortest",               OPT_TYPE_BOOL, OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT,
 | |
|         { .off = OFFSET(shortest) },
 | |
|         "finish encoding within shortest input" },
 | |
|     { "shortest_buf_duration",  OPT_TYPE_FLOAT, OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT,
 | |
|         { .off = OFFSET(shortest_buf_duration) },
 | |
|         "maximum buffering duration (in seconds) for the -shortest option" },
 | |
|     { "bitexact",               OPT_TYPE_BOOL, OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT | OPT_INPUT,
 | |
|         { .off = OFFSET(bitexact) },
 | |
|         "bitexact mode" },
 | |
|     { "apad",                   OPT_TYPE_STRING, OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(apad) },
 | |
|         "audio pad", "" },
 | |
|     { "dts_delta_threshold",    OPT_TYPE_FLOAT, OPT_EXPERT,
 | |
|         { &dts_delta_threshold },
 | |
|         "timestamp discontinuity delta threshold", "threshold" },
 | |
|     { "dts_error_threshold",    OPT_TYPE_FLOAT, OPT_EXPERT,
 | |
|         { &dts_error_threshold },
 | |
|         "timestamp error delta threshold", "threshold" },
 | |
|     { "xerror",                 OPT_TYPE_BOOL, OPT_EXPERT,
 | |
|         { &exit_on_error },
 | |
|         "exit on error", "error" },
 | |
|     { "abort_on",               OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
 | |
|         { .func_arg = opt_abort_on },
 | |
|         "abort on the specified condition flags", "flags" },
 | |
|     { "copyinkf",               OPT_TYPE_BOOL, OPT_EXPERT | OPT_PERSTREAM | OPT_OUTPUT,
 | |
|         { .off = OFFSET(copy_initial_nonkeyframes) },
 | |
|         "copy initial non-keyframes" },
 | |
|     { "copypriorss",            OPT_TYPE_INT, OPT_EXPERT | OPT_PERSTREAM | OPT_OUTPUT,
 | |
|         { .off = OFFSET(copy_prior_start) },
 | |
|         "copy or discard frames before start time" },
 | |
|     { "frames",                 OPT_TYPE_INT64, OPT_PERSTREAM | OPT_OUTPUT | OPT_EXPERT | OPT_HAS_ALT,
 | |
|         { .off = OFFSET(max_frames) },
 | |
|         "set the number of frames to output", "number",
 | |
|         .u1.names_alt = alt_frames, },
 | |
|     { "tag",                    OPT_TYPE_STRING, OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT | OPT_INPUT | OPT_HAS_ALT,
 | |
|         { .off = OFFSET(codec_tags) },
 | |
|         "force codec tag/fourcc", "fourcc/tag",
 | |
|         .u1.names_alt = alt_tag, },
 | |
|     { "q",                      OPT_TYPE_DOUBLE, OPT_EXPERT | OPT_PERSTREAM | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .off = OFFSET(qscale) },
 | |
|         "use fixed quality scale (VBR)", "q",
 | |
|         .u1.name_canon = "qscale", },
 | |
|     { "qscale",                 OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT | OPT_HAS_ALT,
 | |
|         { .func_arg = opt_qscale },
 | |
|         "use fixed quality scale (VBR)", "q",
 | |
|         .u1.names_alt = alt_qscale, },
 | |
|     { "profile",                OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT,
 | |
|         { .func_arg = opt_profile },
 | |
|         "set profile", "profile" },
 | |
|     { "filter",                 OPT_TYPE_STRING, OPT_PERSTREAM | OPT_OUTPUT | OPT_HAS_ALT,
 | |
|         { .off = OFFSET(filters) },
 | |
|         "apply specified filters to audio/video", "filter_graph",
 | |
|         .u1.names_alt = alt_filter, },
 | |
|     { "filter_threads",         OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
 | |
|         { .func_arg = opt_filter_threads },
 | |
|         "number of non-complex filter threads" },
 | |
| #if FFMPEG_OPT_FILTER_SCRIPT
 | |
|     { "filter_script",          OPT_TYPE_STRING, OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(filter_scripts) },
 | |
|         "deprecated, use -/filter", "filename" },
 | |
| #endif
 | |
|     { "reinit_filter",          OPT_TYPE_INT, OPT_PERSTREAM | OPT_INPUT | OPT_EXPERT,
 | |
|         { .off = OFFSET(reinit_filters) },
 | |
|         "reinit filtergraph on input parameter changes", "" },
 | |
|     { "filter_complex",         OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
 | |
|         { .func_arg = opt_filter_complex },
 | |
|         "create a complex filtergraph", "graph_description" },
 | |
|     { "filter_complex_threads", OPT_TYPE_INT, OPT_EXPERT,
 | |
|         { &filter_complex_nbthreads },
 | |
|         "number of threads for -filter_complex" },
 | |
|     { "lavfi",               OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
 | |
|         { .func_arg = opt_filter_complex },
 | |
|         "create a complex filtergraph", "graph_description" },
 | |
| #if FFMPEG_OPT_FILTER_SCRIPT
 | |
|     { "filter_complex_script", OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
 | |
|         { .func_arg = opt_filter_complex_script },
 | |
|         "deprecated, use -/filter_complex instead", "filename" },
 | |
| #endif
 | |
|     { "auto_conversion_filters", OPT_TYPE_BOOL, OPT_EXPERT,
 | |
|         { &auto_conversion_filters },
 | |
|         "enable automatic conversion filters globally" },
 | |
|     { "stats",               OPT_TYPE_BOOL, 0,
 | |
|         { &print_stats },
 | |
|         "print progress report during encoding", },
 | |
|     { "stats_period",        OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
 | |
|         { .func_arg = opt_stats_period },
 | |
|         "set the period at which ffmpeg updates stats and -progress output", "time" },
 | |
|     { "attach",              OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_PERFILE | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .func_arg = opt_attach },
 | |
|         "add an attachment to the output file", "filename" },
 | |
|     { "dump_attachment",     OPT_TYPE_STRING, OPT_SPEC | OPT_EXPERT | OPT_INPUT,
 | |
|         { .off = OFFSET(dump_attachment) },
 | |
|         "extract an attachment into a file", "filename" },
 | |
|     { "stream_loop",         OPT_TYPE_INT, OPT_EXPERT | OPT_INPUT | OPT_OFFSET,
 | |
|         { .off = OFFSET(loop) }, "set number of times input stream shall be looped", "loop count" },
 | |
|     { "debug_ts",            OPT_TYPE_BOOL, OPT_EXPERT,
 | |
|         { &debug_ts },
 | |
|         "print timestamp debugging info" },
 | |
|     { "max_error_rate",      OPT_TYPE_FLOAT, OPT_EXPERT,
 | |
|         { &max_error_rate },
 | |
|         "ratio of decoding errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success.", "maximum error rate" },
 | |
|     { "discard",             OPT_TYPE_STRING, OPT_PERSTREAM | OPT_INPUT | OPT_EXPERT,
 | |
|         { .off = OFFSET(discard) },
 | |
|         "discard", "" },
 | |
|     { "disposition",         OPT_TYPE_STRING, OPT_PERSTREAM | OPT_OUTPUT | OPT_EXPERT,
 | |
|         { .off = OFFSET(disposition) },
 | |
|         "disposition", "" },
 | |
|     { "thread_queue_size",   OPT_TYPE_INT,  OPT_OFFSET | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(thread_queue_size) },
 | |
|         "set the maximum number of queued packets from the demuxer" },
 | |
|     { "find_stream_info",    OPT_TYPE_BOOL, OPT_INPUT | OPT_EXPERT | OPT_OFFSET,
 | |
|         { .off = OFFSET(find_stream_info) },
 | |
|         "read and decode the streams to fill missing information with heuristics" },
 | |
|     { "bits_per_raw_sample", OPT_TYPE_INT, OPT_EXPERT | OPT_PERSTREAM | OPT_OUTPUT,
 | |
|         { .off = OFFSET(bits_per_raw_sample) },
 | |
|         "set the number of bits per raw sample", "number" },
 | |
| 
 | |
|     { "stats_enc_pre",      OPT_TYPE_STRING, OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(enc_stats_pre)      },
 | |
|         "write encoding stats before encoding" },
 | |
|     { "stats_enc_post",     OPT_TYPE_STRING, OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(enc_stats_post)     },
 | |
|         "write encoding stats after encoding" },
 | |
|     { "stats_mux_pre",      OPT_TYPE_STRING, OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(mux_stats)          },
 | |
|         "write packets stats before muxing" },
 | |
|     { "stats_enc_pre_fmt",  OPT_TYPE_STRING, OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(enc_stats_pre_fmt)  },
 | |
|         "format of the stats written with -stats_enc_pre" },
 | |
|     { "stats_enc_post_fmt", OPT_TYPE_STRING, OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(enc_stats_post_fmt) },
 | |
|         "format of the stats written with -stats_enc_post" },
 | |
|     { "stats_mux_pre_fmt",  OPT_TYPE_STRING, OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(mux_stats_fmt)      },
 | |
|         "format of the stats written with -stats_mux_pre" },
 | |
| 
 | |
|     /* video options */
 | |
|     { "vframes",                    OPT_TYPE_FUNC,   OPT_VIDEO | OPT_FUNC_ARG | OPT_PERFILE | OPT_OUTPUT | OPT_EXPERT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_video_frames },
 | |
|         "set the number of video frames to output", "number",
 | |
|         .u1.name_canon = "frames", },
 | |
|     { "r",                          OPT_TYPE_STRING, OPT_VIDEO | OPT_PERSTREAM | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(frame_rates) },
 | |
|         "override input framerate/convert to given output framerate (Hz value, fraction or abbreviation)", "rate" },
 | |
|     { "fpsmax",                     OPT_TYPE_STRING, OPT_VIDEO | OPT_PERSTREAM | OPT_OUTPUT | OPT_EXPERT,
 | |
|         { .off = OFFSET(max_frame_rates) },
 | |
|         "set max frame rate (Hz value, fraction or abbreviation)", "rate" },
 | |
|     { "s",                          OPT_TYPE_STRING, OPT_VIDEO | OPT_SUBTITLE | OPT_PERSTREAM | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(frame_sizes) },
 | |
|         "set frame size (WxH or abbreviation)", "size" },
 | |
|     { "aspect",                     OPT_TYPE_STRING, OPT_VIDEO | OPT_PERSTREAM | OPT_OUTPUT,
 | |
|         { .off = OFFSET(frame_aspect_ratios) },
 | |
|         "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
 | |
|     { "pix_fmt",                    OPT_TYPE_STRING, OPT_VIDEO | OPT_EXPERT | OPT_PERSTREAM | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(frame_pix_fmts) },
 | |
|         "set pixel format", "format" },
 | |
|     { "display_rotation",           OPT_TYPE_DOUBLE, OPT_VIDEO | OPT_PERSTREAM | OPT_INPUT | OPT_EXPERT,
 | |
|         { .off = OFFSET(display_rotations) },
 | |
|         "set pure counter-clockwise rotation in degrees for stream(s)",
 | |
|         "angle" },
 | |
|     { "display_hflip",              OPT_TYPE_BOOL,   OPT_VIDEO | OPT_PERSTREAM | OPT_INPUT | OPT_EXPERT,
 | |
|         { .off = OFFSET(display_hflips) },
 | |
|         "set display horizontal flip for stream(s) "
 | |
|         "(overrides any display rotation if it is not set)"},
 | |
|     { "display_vflip",              OPT_TYPE_BOOL,   OPT_VIDEO | OPT_PERSTREAM | OPT_INPUT | OPT_EXPERT,
 | |
|         { .off = OFFSET(display_vflips) },
 | |
|         "set display vertical flip for stream(s) "
 | |
|         "(overrides any display rotation if it is not set)"},
 | |
|     { "vn",                         OPT_TYPE_BOOL,   OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(video_disable) },
 | |
|         "disable video" },
 | |
|     { "rc_override",                OPT_TYPE_STRING, OPT_VIDEO | OPT_EXPERT  | OPT_PERSTREAM | OPT_OUTPUT,
 | |
|         { .off = OFFSET(rc_overrides) },
 | |
|         "rate control override for specific intervals", "override" },
 | |
|     { "vcodec",                     OPT_TYPE_FUNC,   OPT_VIDEO | OPT_FUNC_ARG | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_video_codec },
 | |
|         "alias for -c:v (select encoder/decoder for video streams)", "codec",
 | |
|         .u1.name_canon = "codec", },
 | |
|     { "timecode",                   OPT_TYPE_FUNC,   OPT_VIDEO | OPT_FUNC_ARG | OPT_PERFILE | OPT_OUTPUT | OPT_EXPERT,
 | |
|         { .func_arg = opt_timecode },
 | |
|         "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
 | |
|     { "pass",                       OPT_TYPE_INT,    OPT_VIDEO | OPT_PERSTREAM | OPT_OUTPUT | OPT_EXPERT,
 | |
|         { .off = OFFSET(pass) },
 | |
|         "select the pass number (1 to 3)", "n" },
 | |
|     { "passlogfile",                OPT_TYPE_STRING, OPT_VIDEO | OPT_EXPERT | OPT_PERSTREAM | OPT_OUTPUT,
 | |
|         { .off = OFFSET(passlogfiles) },
 | |
|         "select two pass log file name prefix", "prefix" },
 | |
|     { "vstats",                     OPT_TYPE_FUNC,   OPT_VIDEO | OPT_EXPERT,
 | |
|         { .func_arg = opt_vstats },
 | |
|         "dump video coding statistics to file" },
 | |
|     { "vstats_file",                OPT_TYPE_FUNC,   OPT_VIDEO | OPT_FUNC_ARG | OPT_EXPERT,
 | |
|         { .func_arg = opt_vstats_file },
 | |
|         "dump video coding statistics to file", "file" },
 | |
|     { "vstats_version",             OPT_TYPE_INT,    OPT_VIDEO | OPT_EXPERT,
 | |
|         { &vstats_version },
 | |
|         "Version of the vstats format to use."},
 | |
|     { "vf",                         OPT_TYPE_FUNC,   OPT_VIDEO | OPT_FUNC_ARG | OPT_PERFILE | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_video_filters },
 | |
|         "alias for -filter:v (apply filters to video streams)", "filter_graph",
 | |
|         .u1.name_canon = "filter", },
 | |
|     { "intra_matrix",               OPT_TYPE_STRING, OPT_VIDEO | OPT_EXPERT | OPT_PERSTREAM | OPT_OUTPUT,
 | |
|         { .off = OFFSET(intra_matrices) },
 | |
|         "specify intra matrix coeffs", "matrix" },
 | |
|     { "inter_matrix",               OPT_TYPE_STRING, OPT_VIDEO | OPT_EXPERT | OPT_PERSTREAM | OPT_OUTPUT,
 | |
|         { .off = OFFSET(inter_matrices) },
 | |
|         "specify inter matrix coeffs", "matrix" },
 | |
|     { "chroma_intra_matrix",        OPT_TYPE_STRING, OPT_VIDEO | OPT_EXPERT | OPT_PERSTREAM | OPT_OUTPUT,
 | |
|         { .off = OFFSET(chroma_intra_matrices) },
 | |
|         "specify intra matrix coeffs", "matrix" },
 | |
|     { "vtag",                       OPT_TYPE_FUNC,   OPT_VIDEO | OPT_FUNC_ARG | OPT_EXPERT  | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_old2new },
 | |
|         "force video tag/fourcc", "fourcc/tag",
 | |
|         .u1.name_canon = "tag", },
 | |
|     { "fps_mode",                   OPT_TYPE_STRING, OPT_VIDEO | OPT_EXPERT | OPT_PERSTREAM | OPT_OUTPUT,
 | |
|         { .off = OFFSET(fps_mode) },
 | |
|         "set framerate mode for matching video streams; overrides vsync" },
 | |
|     { "force_fps",                  OPT_TYPE_BOOL,   OPT_VIDEO | OPT_EXPERT  | OPT_PERSTREAM | OPT_OUTPUT,
 | |
|         { .off = OFFSET(force_fps) },
 | |
|         "force the selected framerate, disable the best supported framerate selection" },
 | |
|     { "streamid",                   OPT_TYPE_FUNC,   OPT_VIDEO | OPT_FUNC_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT,
 | |
|         { .func_arg = opt_streamid },
 | |
|         "set the value of an outfile streamid", "streamIndex:value" },
 | |
|     { "force_key_frames",           OPT_TYPE_STRING, OPT_VIDEO | OPT_EXPERT | OPT_PERSTREAM | OPT_OUTPUT,
 | |
|         { .off = OFFSET(forced_key_frames) },
 | |
|         "force key frames at specified timestamps", "timestamps" },
 | |
|     { "b",                          OPT_TYPE_FUNC,   OPT_VIDEO | OPT_FUNC_ARG | OPT_PERFILE | OPT_OUTPUT,
 | |
|         { .func_arg = opt_bitrate },
 | |
|         "video bitrate (please use -b:v)", "bitrate" },
 | |
|     { "hwaccel",                    OPT_TYPE_STRING, OPT_VIDEO | OPT_EXPERT | OPT_PERSTREAM | OPT_INPUT,
 | |
|         { .off = OFFSET(hwaccels) },
 | |
|         "use HW accelerated decoding", "hwaccel name" },
 | |
|     { "hwaccel_device",             OPT_TYPE_STRING, OPT_VIDEO | OPT_EXPERT | OPT_PERSTREAM | OPT_INPUT,
 | |
|         { .off = OFFSET(hwaccel_devices) },
 | |
|         "select a device for HW acceleration", "devicename" },
 | |
|     { "hwaccel_output_format",      OPT_TYPE_STRING, OPT_VIDEO | OPT_EXPERT | OPT_PERSTREAM | OPT_INPUT,
 | |
|         { .off = OFFSET(hwaccel_output_formats) },
 | |
|         "select output format used with HW accelerated decoding", "format" },
 | |
|     { "hwaccels",                   OPT_TYPE_FUNC,   OPT_EXIT | OPT_EXPERT,
 | |
|         { .func_arg = show_hwaccels },
 | |
|         "show available HW acceleration methods" },
 | |
|     { "autorotate",                 OPT_TYPE_BOOL,   OPT_PERSTREAM | OPT_EXPERT | OPT_INPUT,
 | |
|         { .off = OFFSET(autorotate) },
 | |
|         "automatically insert correct rotate filters" },
 | |
|     { "autoscale",                  OPT_TYPE_BOOL,   OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(autoscale) },
 | |
|         "automatically insert a scale filter at the end of the filter graph" },
 | |
|     { "fix_sub_duration_heartbeat", OPT_TYPE_BOOL,   OPT_VIDEO | OPT_EXPERT | OPT_PERSTREAM | OPT_OUTPUT,
 | |
|         { .off = OFFSET(fix_sub_duration_heartbeat) },
 | |
|         "set this video output stream to be a heartbeat stream for "
 | |
|         "fix_sub_duration, according to which subtitles should be split at "
 | |
|         "random access points" },
 | |
| 
 | |
|     /* audio options */
 | |
|     { "aframes",          OPT_TYPE_FUNC,    OPT_AUDIO | OPT_FUNC_ARG | OPT_PERFILE | OPT_OUTPUT | OPT_EXPERT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_audio_frames },
 | |
|         "set the number of audio frames to output", "number",
 | |
|         .u1.name_canon = "frames", },
 | |
|     { "aq",               OPT_TYPE_FUNC,    OPT_AUDIO | OPT_FUNC_ARG  | OPT_PERFILE | OPT_OUTPUT,
 | |
|         { .func_arg = opt_audio_qscale },
 | |
|         "set audio quality (codec-specific)", "quality", },
 | |
|     { "ar",               OPT_TYPE_INT,     OPT_AUDIO | OPT_PERSTREAM | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(audio_sample_rate) },
 | |
|         "set audio sampling rate (in Hz)", "rate" },
 | |
|     { "ac",               OPT_TYPE_INT,     OPT_AUDIO | OPT_PERSTREAM | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(audio_channels) },
 | |
|         "set number of audio channels", "channels" },
 | |
|     { "an",               OPT_TYPE_BOOL,    OPT_AUDIO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(audio_disable) },
 | |
|         "disable audio" },
 | |
|     { "acodec",           OPT_TYPE_FUNC,    OPT_AUDIO | OPT_FUNC_ARG  | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_audio_codec },
 | |
|         "alias for -c:a (select encoder/decoder for audio streams)", "codec",
 | |
|         .u1.name_canon = "codec", },
 | |
|     { "ab",               OPT_TYPE_FUNC,    OPT_AUDIO | OPT_FUNC_ARG | OPT_PERFILE | OPT_OUTPUT,
 | |
|         { .func_arg = opt_bitrate },
 | |
|         "alias for -b:a (select bitrate for audio streams)", "bitrate" },
 | |
|     { "atag",             OPT_TYPE_FUNC,    OPT_AUDIO | OPT_FUNC_ARG  | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_old2new },
 | |
|         "force audio tag/fourcc", "fourcc/tag",
 | |
|         .u1.name_canon = "tag", },
 | |
|     { "sample_fmt",       OPT_TYPE_STRING,  OPT_AUDIO | OPT_EXPERT | OPT_PERSTREAM | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(sample_fmts) },
 | |
|         "set sample format", "format" },
 | |
|     { "channel_layout",   OPT_TYPE_STRING,  OPT_AUDIO | OPT_EXPERT | OPT_PERSTREAM | OPT_INPUT | OPT_OUTPUT | OPT_HAS_ALT,
 | |
|         { .off = OFFSET(audio_ch_layouts) },
 | |
|         "set channel layout", "layout",
 | |
|         .u1.names_alt = alt_channel_layout, },
 | |
|     { "ch_layout",        OPT_TYPE_STRING,  OPT_AUDIO | OPT_EXPERT | OPT_PERSTREAM | OPT_INPUT | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .off = OFFSET(audio_ch_layouts) },
 | |
|         "set channel layout", "layout",
 | |
|         .u1.name_canon = "channel_layout", },
 | |
|     { "af",               OPT_TYPE_FUNC,    OPT_AUDIO | OPT_FUNC_ARG  | OPT_PERFILE | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_audio_filters },
 | |
|         "alias for -filter:a (apply filters to audio streams)", "filter_graph",
 | |
|         .u1.name_canon = "filter", },
 | |
|     { "guess_layout_max", OPT_TYPE_INT,     OPT_AUDIO | OPT_PERSTREAM | OPT_EXPERT | OPT_INPUT,
 | |
|         { .off = OFFSET(guess_layout_max) },
 | |
|       "set the maximum number of channels to try to guess the channel layout" },
 | |
| 
 | |
|     /* subtitle options */
 | |
|     { "sn",     OPT_TYPE_BOOL, OPT_SUBTITLE | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(subtitle_disable) },
 | |
|         "disable subtitle" },
 | |
|     { "scodec", OPT_TYPE_FUNC, OPT_SUBTITLE | OPT_FUNC_ARG  | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_subtitle_codec },
 | |
|         "alias for -c:s (select encoder/decoder for subtitle streams)", "codec",
 | |
|         .u1.name_canon = "codec", },
 | |
|     { "stag",   OPT_TYPE_FUNC, OPT_SUBTITLE | OPT_FUNC_ARG  | OPT_EXPERT  | OPT_PERFILE | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_old2new }
 | |
|         , "force subtitle tag/fourcc", "fourcc/tag",
 | |
|         .u1.name_canon = "tag" },
 | |
|     { "fix_sub_duration", OPT_TYPE_BOOL, OPT_EXPERT | OPT_SUBTITLE | OPT_PERSTREAM | OPT_INPUT,
 | |
|         { .off = OFFSET(fix_sub_duration) },
 | |
|         "fix subtitles duration" },
 | |
|     { "canvas_size", OPT_TYPE_STRING, OPT_SUBTITLE | OPT_PERSTREAM | OPT_INPUT | OPT_EXPERT,
 | |
|         { .off = OFFSET(canvas_sizes) },
 | |
|         "set canvas size (WxH or abbreviation)", "size" },
 | |
| 
 | |
|     /* muxer options */
 | |
|     { "muxdelay",   OPT_TYPE_FLOAT, OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT,
 | |
|         { .off = OFFSET(mux_max_delay) },
 | |
|         "set the maximum demux-decode delay", "seconds" },
 | |
|     { "muxpreload", OPT_TYPE_FLOAT, OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT,
 | |
|         { .off = OFFSET(mux_preload) },
 | |
|         "set the initial demux-decode delay", "seconds" },
 | |
|     { "sdp_file",   OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .func_arg = opt_sdp_file },
 | |
|         "specify a file in which to print sdp information", "file" },
 | |
| 
 | |
|     { "time_base",     OPT_TYPE_STRING, OPT_EXPERT | OPT_PERSTREAM | OPT_OUTPUT,
 | |
|         { .off = OFFSET(time_bases) },
 | |
|         "set the desired time base hint for output stream (1:24, 1:48000 or 0.04166, 2.0833e-5)", "ratio" },
 | |
|     { "enc_time_base", OPT_TYPE_STRING, OPT_EXPERT | OPT_PERSTREAM | OPT_OUTPUT,
 | |
|         { .off = OFFSET(enc_time_bases) },
 | |
|         "set the desired time base for the encoder (1:24, 1:48000 or 0.04166, 2.0833e-5). "
 | |
|         "two special values are defined - "
 | |
|         "0 = use frame rate (video) or sample rate (audio),"
 | |
|         "-1 = match source time base", "ratio" },
 | |
| 
 | |
|     { "bsf", OPT_TYPE_STRING, OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT | OPT_INPUT,
 | |
|         { .off = OFFSET(bitstream_filters) },
 | |
|         "A comma-separated list of bitstream filters", "bitstream_filters", },
 | |
| 
 | |
|     { "apre", OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_preset },
 | |
|         "set the audio options to the indicated preset", "preset",
 | |
|         .u1.name_canon = "pre", },
 | |
|     { "vpre", OPT_TYPE_FUNC, OPT_VIDEO | OPT_FUNC_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_preset },
 | |
|         "set the video options to the indicated preset", "preset",
 | |
|         .u1.name_canon = "pre", },
 | |
|     { "spre", OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_preset },
 | |
|         "set the subtitle options to the indicated preset", "preset",
 | |
|         .u1.name_canon = "pre", },
 | |
|     { "fpre", OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_preset },
 | |
|         "set options from indicated preset file", "filename",
 | |
|         .u1.name_canon = "pre", },
 | |
| 
 | |
|     { "max_muxing_queue_size", OPT_TYPE_INT, OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(max_muxing_queue_size) },
 | |
|         "maximum number of packets that can be buffered while waiting for all streams to initialize", "packets" },
 | |
|     { "muxing_queue_data_threshold", OPT_TYPE_INT, OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(muxing_queue_data_threshold) },
 | |
|         "set the threshold after which max_muxing_queue_size is taken into account", "bytes" },
 | |
| 
 | |
|     /* data codec support */
 | |
|     { "dcodec", OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT | OPT_HAS_CANON,
 | |
|         { .func_arg = opt_data_codec },
 | |
|         "alias for -c:d (select encoder/decoder for data streams)", "codec",
 | |
|         .u1.name_canon = "codec", },
 | |
|     { "dn", OPT_TYPE_BOOL, OPT_DATA | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(data_disable) }, "disable data" },
 | |
| 
 | |
| #if CONFIG_VAAPI
 | |
|     { "vaapi_device", OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
 | |
|         { .func_arg = opt_vaapi_device },
 | |
|         "set VAAPI hardware device (DirectX adapter index, DRM path or X11 display name)", "device" },
 | |
| #endif
 | |
| 
 | |
| #if CONFIG_QSV
 | |
|     { "qsv_device", OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
 | |
|         { .func_arg = opt_qsv_device },
 | |
|         "set QSV hardware device (DirectX adapter index, DRM path or X11 display name)", "device"},
 | |
| #endif
 | |
| 
 | |
|     { "init_hw_device", OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
 | |
|         { .func_arg = opt_init_hw_device },
 | |
|         "initialise hardware device", "args" },
 | |
|     { "filter_hw_device", OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
 | |
|         { .func_arg = opt_filter_hw_device },
 | |
|         "set hardware device used when filtering", "device" },
 | |
| 
 | |
|     // deprecated options
 | |
| #if FFMPEG_OPT_ADRIFT_THRESHOLD
 | |
|     { "adrift_threshold", OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
 | |
|         { .func_arg = opt_adrift_threshold },
 | |
|         "deprecated, does nothing", "threshold" },
 | |
| #endif
 | |
| #if FFMPEG_OPT_TOP
 | |
|     { "top", OPT_TYPE_INT,     OPT_VIDEO | OPT_EXPERT | OPT_PERSTREAM | OPT_INPUT | OPT_OUTPUT,
 | |
|         { .off = OFFSET(top_field_first) },
 | |
|         "deprecated, use the setfield video filter", "" },
 | |
| #endif
 | |
| #if FFMPEG_OPT_QPHIST
 | |
|     { "qphist", OPT_TYPE_FUNC, OPT_VIDEO | OPT_EXPERT,
 | |
|         { .func_arg = opt_qphist },
 | |
|         "deprecated, does nothing" },
 | |
| #endif
 | |
| #if FFMPEG_OPT_VSYNC
 | |
|     { "vsync",                  OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_EXPERT,
 | |
|         { .func_arg = opt_vsync },
 | |
|         "set video sync method globally; deprecated, use -fps_mode", "" },
 | |
| #endif
 | |
| 
 | |
|     { NULL, },
 | |
| };
 |