784 lines
26 KiB
C
784 lines
26 KiB
C
/*
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* AVI encoder.
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* Copyright (c) 2000 Fabrice Bellard.
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*
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* This library 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 of the License, or (at your option) any later version.
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*
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* This library 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 this library; 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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#include "avformat.h"
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#include "avi.h"
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/*
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* TODO:
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* - fill all fields if non streamed (nb_frames for example)
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*/
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#ifdef CONFIG_MUXERS
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typedef struct AVIIentry {
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unsigned int flags, pos, len;
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} AVIIentry;
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#define AVI_INDEX_CLUSTER_SIZE 16384
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typedef struct AVIIndex {
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offset_t indx_start;
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int entry;
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int ents_allocated;
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AVIIentry** cluster;
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} AVIIndex;
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typedef struct {
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offset_t riff_start, movi_list, odml_list;
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offset_t frames_hdr_all, frames_hdr_strm[MAX_STREAMS];
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int audio_strm_length[MAX_STREAMS];
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int riff_id;
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int packet_count[MAX_STREAMS];
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AVIIndex indexes[MAX_STREAMS];
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} AVIContext;
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static inline AVIIentry* avi_get_ientry(AVIIndex* idx, int ent_id)
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{
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int cl = ent_id / AVI_INDEX_CLUSTER_SIZE;
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int id = ent_id % AVI_INDEX_CLUSTER_SIZE;
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return &idx->cluster[cl][id];
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}
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offset_t start_tag(ByteIOContext *pb, const char *tag)
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{
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put_tag(pb, tag);
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put_le32(pb, 0);
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return url_ftell(pb);
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}
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void end_tag(ByteIOContext *pb, offset_t start)
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{
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offset_t pos;
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pos = url_ftell(pb);
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url_fseek(pb, start - 4, SEEK_SET);
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put_le32(pb, (uint32_t)(pos - start));
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url_fseek(pb, pos, SEEK_SET);
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}
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#endif //CONFIG_MUXERS
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/* Note: when encoding, the first matching tag is used, so order is
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important if multiple tags possible for a given codec. */
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const CodecTag codec_bmp_tags[] = {
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{ CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
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{ CODEC_ID_H264, MKTAG('h', '2', '6', '4') },
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{ CODEC_ID_H264, MKTAG('X', '2', '6', '4') },
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{ CODEC_ID_H264, MKTAG('x', '2', '6', '4') },
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{ CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') },
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{ CODEC_ID_H264, MKTAG('V', 'S', 'S', 'H') },
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{ CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
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{ CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
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{ CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
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{ CODEC_ID_H261, MKTAG('H', '2', '6', '1') },
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/* added based on MPlayer */
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{ CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
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{ CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
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{ CODEC_ID_MPEG4, MKTAG('F', 'M', 'P', '4')},
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{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X'), .invalid_asf = 1 },
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{ CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0'), .invalid_asf = 1 },
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{ CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D'), .invalid_asf = 1 },
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{ CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
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{ CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
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{ CODEC_ID_MPEG4, MKTAG(0x04, 0, 0, 0) }, /* some broken avi use this */
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/* added based on MPlayer */
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{ CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
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{ CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
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{ CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
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{ CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
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{ CODEC_ID_MPEG4, MKTAG('W', 'V', '1', 'F') },
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{ CODEC_ID_MPEG4, MKTAG('S', 'E', 'D', 'G') },
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{ CODEC_ID_MPEG4, MKTAG('R', 'M', 'P', '4') },
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{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3'), .invalid_asf = 1 }, /* default signature when using MSMPEG4 */
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{ CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
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/* added based on MPlayer */
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{ CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
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{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
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{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
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{ CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') },
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{ CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
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{ CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
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{ CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
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{ CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
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/* added based on MPlayer */
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{ CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
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{ CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
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{ CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
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/* added based on MPlayer */
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{ CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
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{ CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
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{ CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
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{ CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
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{ CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') },
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{ CODEC_ID_MPEG2VIDEO, MKTAG('M', 'P', 'E', 'G') },
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{ CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
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{ CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
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{ CODEC_ID_MPEG1VIDEO, 0x10000001 },
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{ CODEC_ID_MPEG2VIDEO, 0x10000002 },
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{ CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') },
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{ CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
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{ CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
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{ CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
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{ CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
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{ CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - decoder */
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{ CODEC_ID_JPEGLS, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - encoder */
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{ CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
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{ CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') },
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{ CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
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{ CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'Y', '2') },
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{ CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
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{ CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') },
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{ CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') },
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{ CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
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{ CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
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{ CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
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{ CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
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{ CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
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{ CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
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{ CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
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{ CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
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{ CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
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{ CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
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{ CODEC_ID_MSRLE, MKTAG(0x1, 0x0, 0x0, 0x0) },
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{ CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
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{ CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
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{ CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
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{ CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
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{ CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
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{ CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
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{ CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
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{ CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
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{ CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
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{ CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
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{ CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
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{ CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
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{ CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
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{ CODEC_ID_FLASHSV, MKTAG('F', 'S', 'V', '1') },
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{ CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
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{ CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
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{ CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') },
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{ CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') },
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{ CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') },
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{ CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') },
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{ CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') },
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{ CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') },
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{ CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') },
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{ CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') },
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{ CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') },
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{ CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') },
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{ CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') },
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{ CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') },
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{ CODEC_ID_TRUEMOTION2, MKTAG('T', 'M', '2', '0') },
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{ CODEC_ID_CSCD, MKTAG('C', 'S', 'C', 'D') },
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{ CODEC_ID_ZMBV, MKTAG('Z', 'M', 'B', 'V') },
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{ CODEC_ID_KMVC, MKTAG('K', 'M', 'V', 'C') },
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{ CODEC_ID_RAWVIDEO, 0 },
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{ CODEC_ID_NONE, 0 },
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};
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unsigned int codec_get_tag(const CodecTag *tags, int id)
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{
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while (tags->id != CODEC_ID_NONE) {
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if (tags->id == id)
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return tags->tag;
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tags++;
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}
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return 0;
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}
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static unsigned int codec_get_asf_tag(const CodecTag *tags, unsigned int id)
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{
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while (tags->id != CODEC_ID_NONE) {
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if (!tags->invalid_asf && tags->id == id)
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return tags->tag;
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tags++;
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}
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return 0;
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}
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enum CodecID codec_get_id(const CodecTag *tags, unsigned int tag)
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{
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while (tags->id != CODEC_ID_NONE) {
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if( toupper((tag >> 0)&0xFF) == toupper((tags->tag >> 0)&0xFF)
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&& toupper((tag >> 8)&0xFF) == toupper((tags->tag >> 8)&0xFF)
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&& toupper((tag >>16)&0xFF) == toupper((tags->tag >>16)&0xFF)
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&& toupper((tag >>24)&0xFF) == toupper((tags->tag >>24)&0xFF))
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return tags->id;
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tags++;
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}
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return CODEC_ID_NONE;
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}
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unsigned int codec_get_bmp_tag(int id)
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{
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return codec_get_tag(codec_bmp_tags, id);
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}
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unsigned int codec_get_wav_tag(int id)
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{
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return codec_get_tag(codec_wav_tags, id);
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}
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enum CodecID codec_get_bmp_id(unsigned int tag)
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{
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return codec_get_id(codec_bmp_tags, tag);
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}
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enum CodecID codec_get_wav_id(unsigned int tag)
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{
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return codec_get_id(codec_wav_tags, tag);
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}
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#ifdef CONFIG_MUXERS
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/* BITMAPINFOHEADER header */
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void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const CodecTag *tags, int for_asf)
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{
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put_le32(pb, 40 + enc->extradata_size); /* size */
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put_le32(pb, enc->width);
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put_le32(pb, enc->height);
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put_le16(pb, 1); /* planes */
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put_le16(pb, enc->bits_per_sample ? enc->bits_per_sample : 24); /* depth */
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/* compression type */
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put_le32(pb, for_asf ? (enc->codec_tag ? enc->codec_tag : codec_get_asf_tag(tags, enc->codec_id)) : enc->codec_tag); //
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put_le32(pb, enc->width * enc->height * 3);
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put_le32(pb, 0);
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put_le32(pb, 0);
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put_le32(pb, 0);
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put_le32(pb, 0);
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put_buffer(pb, enc->extradata, enc->extradata_size);
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if (enc->extradata_size & 1)
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put_byte(pb, 0);
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}
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void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
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{
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int gcd;
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*au_ssize= stream->block_align;
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if(stream->frame_size && stream->sample_rate){
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*au_scale=stream->frame_size;
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*au_rate= stream->sample_rate;
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}else if(stream->codec_type == CODEC_TYPE_VIDEO){
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*au_scale= stream->time_base.num;
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*au_rate = stream->time_base.den;
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}else{
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*au_scale= stream->block_align ? stream->block_align*8 : 8;
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*au_rate = stream->bit_rate;
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}
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gcd= ff_gcd(*au_scale, *au_rate);
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*au_scale /= gcd;
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*au_rate /= gcd;
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}
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static offset_t avi_start_new_riff(AVIContext *avi, ByteIOContext *pb,
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const char* riff_tag, const char* list_tag)
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{
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offset_t loff;
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int i;
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avi->riff_id++;
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for (i=0; i<MAX_STREAMS; i++)
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avi->indexes[i].entry = 0;
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avi->riff_start = start_tag(pb, "RIFF");
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put_tag(pb, riff_tag);
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loff = start_tag(pb, "LIST");
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put_tag(pb, list_tag);
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return loff;
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}
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static unsigned char* avi_stream2fourcc(unsigned char* tag, int index,
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enum CodecType type)
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{
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tag[0] = '0';
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tag[1] = '0' + index;
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if (type == CODEC_TYPE_VIDEO) {
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tag[2] = 'd';
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tag[3] = 'c';
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} else {
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tag[2] = 'w';
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tag[3] = 'b';
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}
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tag[4] = '\0';
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return tag;
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}
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static int avi_write_header(AVFormatContext *s)
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{
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AVIContext *avi = s->priv_data;
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ByteIOContext *pb = &s->pb;
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int bitrate, n, i, nb_frames, au_byterate, au_ssize, au_scale;
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AVCodecContext *stream, *video_enc;
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offset_t list1, list2, strh, strf;
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/* header list */
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avi->riff_id = 0;
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list1 = avi_start_new_riff(avi, pb, "AVI ", "hdrl");
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/* avi header */
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put_tag(pb, "avih");
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put_le32(pb, 14 * 4);
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bitrate = 0;
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video_enc = NULL;
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for(n=0;n<s->nb_streams;n++) {
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stream = s->streams[n]->codec;
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bitrate += stream->bit_rate;
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if (stream->codec_type == CODEC_TYPE_VIDEO)
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video_enc = stream;
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}
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nb_frames = 0;
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if(video_enc){
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put_le32(pb, (uint32_t)(int64_t_C(1000000) * video_enc->time_base.num / video_enc->time_base.den));
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} else {
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put_le32(pb, 0);
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}
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put_le32(pb, bitrate / 8); /* XXX: not quite exact */
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put_le32(pb, 0); /* padding */
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if (url_is_streamed(pb))
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put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_ISINTERLEAVED); /* flags */
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else
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put_le32(pb, AVIF_TRUSTCKTYPE | AVIF_HASINDEX | AVIF_ISINTERLEAVED); /* flags */
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avi->frames_hdr_all = url_ftell(pb); /* remember this offset to fill later */
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put_le32(pb, nb_frames); /* nb frames, filled later */
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put_le32(pb, 0); /* initial frame */
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put_le32(pb, s->nb_streams); /* nb streams */
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put_le32(pb, 1024 * 1024); /* suggested buffer size */
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if(video_enc){
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put_le32(pb, video_enc->width);
|
|
put_le32(pb, video_enc->height);
|
|
} else {
|
|
put_le32(pb, 0);
|
|
put_le32(pb, 0);
|
|
}
|
|
put_le32(pb, 0); /* reserved */
|
|
put_le32(pb, 0); /* reserved */
|
|
put_le32(pb, 0); /* reserved */
|
|
put_le32(pb, 0); /* reserved */
|
|
|
|
/* stream list */
|
|
for(i=0;i<n;i++) {
|
|
list2 = start_tag(pb, "LIST");
|
|
put_tag(pb, "strl");
|
|
|
|
stream = s->streams[i]->codec;
|
|
|
|
/* FourCC should really be set by the codec itself */
|
|
if (! stream->codec_tag) {
|
|
stream->codec_tag = codec_get_bmp_tag(stream->codec_id);
|
|
}
|
|
|
|
/* stream generic header */
|
|
strh = start_tag(pb, "strh");
|
|
switch(stream->codec_type) {
|
|
case CODEC_TYPE_VIDEO: put_tag(pb, "vids"); break;
|
|
case CODEC_TYPE_AUDIO: put_tag(pb, "auds"); break;
|
|
// case CODEC_TYPE_TEXT : put_tag(pb, "txts"); break;
|
|
case CODEC_TYPE_DATA : put_tag(pb, "dats"); break;
|
|
}
|
|
if(stream->codec_type == CODEC_TYPE_VIDEO)
|
|
put_le32(pb, stream->codec_tag);
|
|
else
|
|
put_le32(pb, 1);
|
|
put_le32(pb, 0); /* flags */
|
|
put_le16(pb, 0); /* priority */
|
|
put_le16(pb, 0); /* language */
|
|
put_le32(pb, 0); /* initial frame */
|
|
|
|
ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
|
|
|
|
put_le32(pb, au_scale); /* scale */
|
|
put_le32(pb, au_byterate); /* rate */
|
|
av_set_pts_info(s->streams[i], 64, au_scale, au_byterate);
|
|
|
|
put_le32(pb, 0); /* start */
|
|
avi->frames_hdr_strm[i] = url_ftell(pb); /* remember this offset to fill later */
|
|
if (url_is_streamed(pb))
|
|
put_le32(pb, AVI_MAX_RIFF_SIZE); /* FIXME: this may be broken, but who cares */
|
|
else
|
|
put_le32(pb, 0); /* length, XXX: filled later */
|
|
|
|
/* suggested buffer size */ //FIXME set at the end to largest chunk
|
|
if(stream->codec_type == CODEC_TYPE_VIDEO)
|
|
put_le32(pb, 1024 * 1024);
|
|
else if(stream->codec_type == CODEC_TYPE_AUDIO)
|
|
put_le32(pb, 12 * 1024);
|
|
else
|
|
put_le32(pb, 0);
|
|
put_le32(pb, -1); /* quality */
|
|
put_le32(pb, au_ssize); /* sample size */
|
|
put_le32(pb, 0);
|
|
put_le16(pb, stream->width);
|
|
put_le16(pb, stream->height);
|
|
end_tag(pb, strh);
|
|
|
|
if(stream->codec_type != CODEC_TYPE_DATA){
|
|
strf = start_tag(pb, "strf");
|
|
switch(stream->codec_type) {
|
|
case CODEC_TYPE_VIDEO:
|
|
put_bmp_header(pb, stream, codec_bmp_tags, 0);
|
|
break;
|
|
case CODEC_TYPE_AUDIO:
|
|
if (put_wav_header(pb, stream) < 0) {
|
|
av_free(avi);
|
|
return -1;
|
|
}
|
|
break;
|
|
default:
|
|
return -1;
|
|
}
|
|
end_tag(pb, strf);
|
|
}
|
|
|
|
if (!url_is_streamed(pb)) {
|
|
unsigned char tag[5];
|
|
int j;
|
|
|
|
/* Starting to lay out AVI OpenDML master index.
|
|
* We want to make it JUNK entry for now, since we'd
|
|
* like to get away without making AVI an OpenDML one
|
|
* for compatibility reasons.
|
|
*/
|
|
avi->indexes[i].entry = avi->indexes[i].ents_allocated = 0;
|
|
avi->indexes[i].indx_start = start_tag(pb, "JUNK");
|
|
put_le16(pb, 4); /* wLongsPerEntry */
|
|
put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
|
|
put_byte(pb, 0); /* bIndexType (0 == AVI_INDEX_OF_INDEXES) */
|
|
put_le32(pb, 0); /* nEntriesInUse (will fill out later on) */
|
|
put_tag(pb, avi_stream2fourcc(&tag[0], i, stream->codec_type));
|
|
/* dwChunkId */
|
|
put_le64(pb, 0); /* dwReserved[3]
|
|
put_le32(pb, 0); Must be 0. */
|
|
for (j=0; j < AVI_MASTER_INDEX_SIZE * 2; j++)
|
|
put_le64(pb, 0);
|
|
end_tag(pb, avi->indexes[i].indx_start);
|
|
}
|
|
|
|
end_tag(pb, list2);
|
|
}
|
|
|
|
if (!url_is_streamed(pb)) {
|
|
/* AVI could become an OpenDML one, if it grows beyond 2Gb range */
|
|
avi->odml_list = start_tag(pb, "JUNK");
|
|
put_tag(pb, "odml");
|
|
put_tag(pb, "dmlh");
|
|
put_le32(pb, 248);
|
|
for (i = 0; i < 248; i+= 4)
|
|
put_le32(pb, 0);
|
|
end_tag(pb, avi->odml_list);
|
|
}
|
|
|
|
end_tag(pb, list1);
|
|
|
|
avi->movi_list = start_tag(pb, "LIST");
|
|
put_tag(pb, "movi");
|
|
|
|
put_flush_packet(pb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int avi_write_ix(AVFormatContext *s)
|
|
{
|
|
ByteIOContext *pb = &s->pb;
|
|
AVIContext *avi = s->priv_data;
|
|
unsigned char tag[5];
|
|
unsigned char ix_tag[] = "ix00";
|
|
int i, j;
|
|
|
|
assert(!url_is_streamed(pb));
|
|
|
|
if (avi->riff_id > AVI_MASTER_INDEX_SIZE)
|
|
return -1;
|
|
|
|
for (i=0;i<s->nb_streams;i++) {
|
|
offset_t ix, pos;
|
|
|
|
avi_stream2fourcc(&tag[0], i, s->streams[i]->codec->codec_type);
|
|
ix_tag[3] = '0' + i;
|
|
|
|
/* Writing AVI OpenDML leaf index chunk */
|
|
ix = url_ftell(pb);
|
|
put_tag(pb, &ix_tag[0]); /* ix?? */
|
|
put_le32(pb, avi->indexes[i].entry * 8 + 24);
|
|
/* chunk size */
|
|
put_le16(pb, 2); /* wLongsPerEntry */
|
|
put_byte(pb, 0); /* bIndexSubType (0 == frame index) */
|
|
put_byte(pb, 1); /* bIndexType (1 == AVI_INDEX_OF_CHUNKS) */
|
|
put_le32(pb, avi->indexes[i].entry);
|
|
/* nEntriesInUse */
|
|
put_tag(pb, &tag[0]); /* dwChunkId */
|
|
put_le64(pb, avi->movi_list);/* qwBaseOffset */
|
|
put_le32(pb, 0); /* dwReserved_3 (must be 0) */
|
|
|
|
for (j=0; j<avi->indexes[i].entry; j++) {
|
|
AVIIentry* ie = avi_get_ientry(&avi->indexes[i], j);
|
|
put_le32(pb, ie->pos + 8);
|
|
put_le32(pb, ((uint32_t)ie->len & ~0x80000000) |
|
|
(ie->flags & 0x10 ? 0 : 0x80000000));
|
|
}
|
|
put_flush_packet(pb);
|
|
pos = url_ftell(pb);
|
|
|
|
/* Updating one entry in the AVI OpenDML master index */
|
|
url_fseek(pb, avi->indexes[i].indx_start - 8, SEEK_SET);
|
|
put_tag(pb, "indx"); /* enabling this entry */
|
|
url_fskip(pb, 8);
|
|
put_le32(pb, avi->riff_id); /* nEntriesInUse */
|
|
url_fskip(pb, 16*avi->riff_id);
|
|
put_le64(pb, ix); /* qwOffset */
|
|
put_le32(pb, pos - ix); /* dwSize */
|
|
put_le32(pb, avi->indexes[i].entry); /* dwDuration */
|
|
|
|
url_fseek(pb, pos, SEEK_SET);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int avi_write_idx1(AVFormatContext *s)
|
|
{
|
|
ByteIOContext *pb = &s->pb;
|
|
AVIContext *avi = s->priv_data;
|
|
offset_t file_size, idx_chunk;
|
|
int i, n, nb_frames, au_byterate, au_ssize, au_scale;
|
|
AVCodecContext *stream;
|
|
unsigned char tag[5];
|
|
|
|
if (!url_is_streamed(pb)) {
|
|
AVIIentry* ie = 0, *tie;
|
|
int entry[MAX_STREAMS];
|
|
int empty, stream_id = -1;
|
|
|
|
idx_chunk = start_tag(pb, "idx1");
|
|
memset(&entry[0], 0, sizeof(entry));
|
|
do {
|
|
empty = 1;
|
|
for (i=0; i<s->nb_streams; i++) {
|
|
if (avi->indexes[i].entry <= entry[i])
|
|
continue;
|
|
|
|
tie = avi_get_ientry(&avi->indexes[i], entry[i]);
|
|
if (empty || tie->pos < ie->pos) {
|
|
ie = tie;
|
|
stream_id = i;
|
|
}
|
|
empty = 0;
|
|
}
|
|
if (!empty) {
|
|
avi_stream2fourcc(&tag[0], stream_id,
|
|
s->streams[stream_id]->codec->codec_type);
|
|
put_tag(pb, &tag[0]);
|
|
put_le32(pb, ie->flags);
|
|
put_le32(pb, ie->pos);
|
|
put_le32(pb, ie->len);
|
|
entry[stream_id]++;
|
|
}
|
|
} while (!empty);
|
|
end_tag(pb, idx_chunk);
|
|
|
|
/* Fill in frame/sample counters */
|
|
file_size = url_ftell(pb);
|
|
nb_frames = 0;
|
|
for(n=0;n<s->nb_streams;n++) {
|
|
assert(avi->frames_hdr_strm[n]);
|
|
stream = s->streams[n]->codec;
|
|
url_fseek(pb, avi->frames_hdr_strm[n], SEEK_SET);
|
|
ff_parse_specific_params(stream, &au_byterate, &au_ssize, &au_scale);
|
|
if (au_ssize == 0) {
|
|
put_le32(pb, avi->packet_count[n]);
|
|
} else {
|
|
put_le32(pb, avi->audio_strm_length[n] / au_ssize);
|
|
}
|
|
if(stream->codec_type == CODEC_TYPE_VIDEO)
|
|
nb_frames = FFMAX(nb_frames, avi->packet_count[n]);
|
|
}
|
|
assert(avi->frames_hdr_all);
|
|
url_fseek(pb, avi->frames_hdr_all, SEEK_SET);
|
|
put_le32(pb, nb_frames);
|
|
url_fseek(pb, file_size, SEEK_SET);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
AVIContext *avi = s->priv_data;
|
|
ByteIOContext *pb = &s->pb;
|
|
unsigned char tag[5];
|
|
unsigned int flags=0;
|
|
const int stream_index= pkt->stream_index;
|
|
AVCodecContext *enc= s->streams[stream_index]->codec;
|
|
int size= pkt->size;
|
|
|
|
// av_log(s, AV_LOG_DEBUG, "%lld %d %d\n", pkt->dts, avi->packet_count[stream_index], stream_index);
|
|
while(enc->block_align==0 && pkt->dts != AV_NOPTS_VALUE && pkt->dts > avi->packet_count[stream_index]){
|
|
AVPacket empty_packet;
|
|
|
|
av_init_packet(&empty_packet);
|
|
empty_packet.size= 0;
|
|
empty_packet.data= NULL;
|
|
empty_packet.stream_index= stream_index;
|
|
avi_write_packet(s, &empty_packet);
|
|
// av_log(s, AV_LOG_DEBUG, "dup %lld %d\n", pkt->dts, avi->packet_count[stream_index]);
|
|
}
|
|
avi->packet_count[stream_index]++;
|
|
|
|
// Make sure to put an OpenDML chunk when the file size exceeds the limits
|
|
if (!url_is_streamed(pb) &&
|
|
(url_ftell(pb) - avi->riff_start > AVI_MAX_RIFF_SIZE)) {
|
|
|
|
avi_write_ix(s);
|
|
end_tag(pb, avi->movi_list);
|
|
|
|
if (avi->riff_id == 1)
|
|
avi_write_idx1(s);
|
|
|
|
end_tag(pb, avi->riff_start);
|
|
avi->movi_list = avi_start_new_riff(avi, pb, "AVIX", "movi");
|
|
}
|
|
|
|
avi_stream2fourcc(&tag[0], stream_index, enc->codec_type);
|
|
if(pkt->flags&PKT_FLAG_KEY)
|
|
flags = 0x10;
|
|
if (enc->codec_type == CODEC_TYPE_AUDIO) {
|
|
avi->audio_strm_length[stream_index] += size;
|
|
}
|
|
|
|
if (!url_is_streamed(&s->pb)) {
|
|
AVIIndex* idx = &avi->indexes[stream_index];
|
|
int cl = idx->entry / AVI_INDEX_CLUSTER_SIZE;
|
|
int id = idx->entry % AVI_INDEX_CLUSTER_SIZE;
|
|
if (idx->ents_allocated <= idx->entry) {
|
|
idx->cluster = av_realloc(idx->cluster, (cl+1)*sizeof(void*));
|
|
if (!idx->cluster)
|
|
return -1;
|
|
idx->cluster[cl] = av_malloc(AVI_INDEX_CLUSTER_SIZE*sizeof(AVIIentry));
|
|
if (!idx->cluster[cl])
|
|
return -1;
|
|
idx->ents_allocated += AVI_INDEX_CLUSTER_SIZE;
|
|
}
|
|
|
|
idx->cluster[cl][id].flags = flags;
|
|
idx->cluster[cl][id].pos = url_ftell(pb) - avi->movi_list;
|
|
idx->cluster[cl][id].len = size;
|
|
idx->entry++;
|
|
}
|
|
|
|
put_buffer(pb, tag, 4);
|
|
put_le32(pb, size);
|
|
put_buffer(pb, pkt->data, size);
|
|
if (size & 1)
|
|
put_byte(pb, 0);
|
|
|
|
put_flush_packet(pb);
|
|
return 0;
|
|
}
|
|
|
|
static int avi_write_trailer(AVFormatContext *s)
|
|
{
|
|
AVIContext *avi = s->priv_data;
|
|
ByteIOContext *pb = &s->pb;
|
|
int res = 0;
|
|
int i, j, n, nb_frames;
|
|
offset_t file_size;
|
|
|
|
if (!url_is_streamed(pb))
|
|
{
|
|
if (avi->riff_id == 1) {
|
|
end_tag(pb, avi->movi_list);
|
|
res = avi_write_idx1(s);
|
|
end_tag(pb, avi->riff_start);
|
|
} else {
|
|
avi_write_ix(s);
|
|
end_tag(pb, avi->movi_list);
|
|
end_tag(pb, avi->riff_start);
|
|
|
|
file_size = url_ftell(pb);
|
|
url_fseek(pb, avi->odml_list - 8, SEEK_SET);
|
|
put_tag(pb, "LIST"); /* Making this AVI OpenDML one */
|
|
url_fskip(pb, 16);
|
|
|
|
for (n=nb_frames=0;n<s->nb_streams;n++) {
|
|
AVCodecContext *stream = s->streams[n]->codec;
|
|
if (stream->codec_type == CODEC_TYPE_VIDEO) {
|
|
if (nb_frames < avi->packet_count[n])
|
|
nb_frames = avi->packet_count[n];
|
|
} else {
|
|
if (stream->codec_id == CODEC_ID_MP2 || stream->codec_id == CODEC_ID_MP3) {
|
|
nb_frames += avi->packet_count[n];
|
|
}
|
|
}
|
|
}
|
|
put_le32(pb, nb_frames);
|
|
url_fseek(pb, file_size, SEEK_SET);
|
|
}
|
|
}
|
|
put_flush_packet(pb);
|
|
|
|
for (i=0; i<MAX_STREAMS; i++) {
|
|
for (j=0; j<avi->indexes[i].ents_allocated/AVI_INDEX_CLUSTER_SIZE; j++)
|
|
av_free(avi->indexes[i].cluster[j]);
|
|
av_free(avi->indexes[i].cluster);
|
|
avi->indexes[i].cluster = NULL;
|
|
avi->indexes[i].ents_allocated = avi->indexes[i].entry = 0;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static AVOutputFormat avi_oformat = {
|
|
"avi",
|
|
"avi format",
|
|
"video/x-msvideo",
|
|
"avi",
|
|
sizeof(AVIContext),
|
|
CODEC_ID_MP2,
|
|
CODEC_ID_MPEG4,
|
|
avi_write_header,
|
|
avi_write_packet,
|
|
avi_write_trailer,
|
|
};
|
|
|
|
int avienc_init(void)
|
|
{
|
|
av_register_output_format(&avi_oformat);
|
|
return 0;
|
|
}
|
|
#endif //CONFIG_MUXERS
|