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mjpegdec: add 'extern_huff' private option.

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Deprecate CODEC_FLAG_EXTERN_HUFF
This commit is contained in:
Anton Khirnov 2011-08-27 10:16:14 +02:00
parent 4623420d84
commit 1f0c7020a1
5 changed files with 32 additions and 0 deletions
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2
libavcodec/avcodec.h
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@ -581,7 +581,9 @@ typedef struct RcOverride{
#define CODEC_FLAG_INPUT_PRESERVED 0x0100
#define CODEC_FLAG_PASS1 0x0200 ///< Use internal 2pass ratecontrol in first pass mode.
#define CODEC_FLAG_PASS2 0x0400 ///< Use internal 2pass ratecontrol in second pass mode.
#if FF_API_MJPEG_GLOBAL_OPTS
#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< Use external Huffman table (for MJPEG).
#endif
#define CODEC_FLAG_GRAY 0x2000 ///< Only decode/encode grayscale.
#define CODEC_FLAG_EMU_EDGE 0x4000 ///< Don't draw edges.
#define CODEC_FLAG_PSNR 0x8000 ///< error[?] variables will be set during encoding.

20
libavcodec/mjpegdec.c
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@ -34,6 +34,7 @@
#include <assert.h>
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "avcodec.h"
#include "dsputil.h"
#include "mjpeg.h"
@ -96,7 +97,11 @@ av_cold int ff_mjpeg_decode_init(AVCodecContext *avctx)
build_basic_mjpeg_vlc(s);
#if FF_API_MJPEG_GLOBAL_OPTS
if (avctx->flags & CODEC_FLAG_EXTERN_HUFF)
s->extern_huff = 1;
#endif
if (s->extern_huff)
{
av_log(avctx, AV_LOG_INFO, "mjpeg: using external huffman table\n");
init_get_bits(&s->gb, avctx->extradata, avctx->extradata_size*8);
@ -1597,6 +1602,20 @@ av_cold int ff_mjpeg_decode_end(AVCodecContext *avctx)
return 0;
}
#define OFFSET(x) offsetof(MJpegDecodeContext, x)
#define VD AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_DECODING_PARAM
static const AVOption options[] = {
{ "extern_huff", "Use external huffman table.", OFFSET(extern_huff), FF_OPT_TYPE_INT, { 0 }, 0, 1, VD },
{ NULL },
};
static const AVClass mjpegdec_class = {
.class_name = "MJPEG decoder",
.item_name = av_default_item_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
};
AVCodec ff_mjpeg_decoder = {
.name = "mjpeg",
.type = AVMEDIA_TYPE_VIDEO,
@ -1608,6 +1627,7 @@ AVCodec ff_mjpeg_decoder = {
.capabilities = CODEC_CAP_DR1,
.max_lowres = 3,
.long_name = NULL_IF_CONFIG_SMALL("MJPEG (Motion JPEG)"),
.priv_class = &mjpegdec_class,
};
AVCodec ff_thp_decoder = {

5
libavcodec/mjpegdec.h
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@ -29,6 +29,8 @@
#ifndef AVCODEC_MJPEGDEC_H
#define AVCODEC_MJPEGDEC_H
#include "libavutil/log.h"
#include "avcodec.h"
#include "get_bits.h"
#include "dsputil.h"
@ -36,6 +38,7 @@
#define MAX_COMPONENTS 4
typedef struct MJpegDecodeContext {
AVClass *class;
AVCodecContext *avctx;
GetBitContext gb;
@ -106,6 +109,8 @@ typedef struct MJpegDecodeContext {
uint16_t (*ljpeg_buffer)[4];
unsigned int ljpeg_buffer_size;
int extern_huff;
} MJpegDecodeContext;
int ff_mjpeg_decode_init(AVCodecContext *avctx);

2
libavcodec/options.c
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@ -87,7 +87,9 @@ static const AVOption options[]={
{"input_preserved", NULL, 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_INPUT_PRESERVED }, INT_MIN, INT_MAX, 0, "flags"},
{"pass1", "use internal 2pass ratecontrol in first pass mode", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_PASS1 }, INT_MIN, INT_MAX, 0, "flags"},
{"pass2", "use internal 2pass ratecontrol in second pass mode", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_PASS2 }, INT_MIN, INT_MAX, 0, "flags"},
#if FF_API_MJPEG_GLOBAL_OPTS
{"extern_huff", "use external huffman table (for mjpeg)", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_EXTERN_HUFF }, INT_MIN, INT_MAX, 0, "flags"},
#endif
{"gray", "only decode/encode grayscale", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_GRAY }, INT_MIN, INT_MAX, V|E|D, "flags"},
{"emu_edge", "don't draw edges", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_EMU_EDGE }, INT_MIN, INT_MAX, 0, "flags"},
{"psnr", "error[?] variables will be set during encoding", 0, FF_OPT_TYPE_CONST, {.dbl = CODEC_FLAG_PSNR }, INT_MIN, INT_MAX, V|E, "flags"},

3
libavcodec/version.h
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@ -95,5 +95,8 @@
#ifndef FF_API_SNOW_GLOBAL_OPTS
#define FF_API_SNOW_GLOBAL_OPTS (LIBAVCODEC_VERSION_MAJOR < 54)
#endif
#ifndef FF_API_MJPEG_GLOBAL_OPTS
#define FF_API_MJPEG_GLOBAL_OPTS (LIBAVCODEC_VERSION_MAJOR < 54)
#endif
#endif /* AVCODEC_VERSION_H */