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Merge commit 'b164d66e35d349de414e2f0d7365a147aba8a620'

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* commit 'b164d66e35d349de414e2f0d7365a147aba8a620':
  ape: make version-dependent decoding functions called via pointers
  mpegts: add support for stream_type 0x42, which is CAVS

Merged-by: Michael Niedermayer <michaelni@gmx.at>
pull/11/merge
Michael Niedermayer 12 years ago
parent 9df00574fc b164d66e35
commit 231795270b
5 changed files with 129 additions and 59 deletions
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  1. 98
      libavcodec/apedec.c
  2. 1
      libavformat/mpeg.h
  3. 1
      libavformat/mpegts.c
  4. 1
      libavformat/mpegts.h
  5. 3
      libavformat/mpegtsenc.c

98
libavcodec/apedec.c
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@ -161,8 +161,24 @@ typedef struct APEContext {
const uint8_t *ptr; ///< current position in frame data
int error;
void (*entropy_decode_mono)(struct APEContext *ctx, int blockstodecode);
void (*entropy_decode_stereo)(struct APEContext *ctx, int blockstodecode);
void (*predictor_decode_mono)(struct APEContext *ctx, int count);
void (*predictor_decode_stereo)(struct APEContext *ctx, int count);
} APEContext;
static void ape_apply_filters(APEContext *ctx, int32_t *decoded0,
int32_t *decoded1, int count);
static void entropy_decode_mono_3900(APEContext *ctx, int blockstodecode);
static void entropy_decode_stereo_3900(APEContext *ctx, int blockstodecode);
static void entropy_decode_mono_3990(APEContext *ctx, int blockstodecode);
static void entropy_decode_stereo_3990(APEContext *ctx, int blockstodecode);
static void predictor_decode_mono_3950(APEContext *ctx, int count);
static void predictor_decode_stereo_3950(APEContext *ctx, int count);
// TODO: dsputilize
static av_cold int ape_decode_close(AVCodecContext *avctx)
@ -231,6 +247,17 @@ static av_cold int ape_decode_init(AVCodecContext *avctx)
filter_alloc_fail);
}
if (s->fileversion < 3990) {
s->entropy_decode_mono = entropy_decode_mono_3900;
s->entropy_decode_stereo = entropy_decode_stereo_3900;
} else {
s->entropy_decode_mono = entropy_decode_mono_3990;
s->entropy_decode_stereo = entropy_decode_stereo_3990;
}
s->predictor_decode_mono = predictor_decode_mono_3950;
s->predictor_decode_stereo = predictor_decode_stereo_3950;
ff_dsputil_init(&s->dsp, avctx);
avctx->channel_layout = (avctx->channels==2) ? AV_CH_LAYOUT_STEREO : AV_CH_LAYOUT_MONO;
@ -401,11 +428,9 @@ static inline void update_rice(APERice *rice, unsigned int x)
rice->k++;
}
static inline int ape_decode_value(APEContext *ctx, APERice *rice)
static inline int ape_decode_value_3900(APEContext *ctx, APERice *rice)
{
unsigned int x, overflow;
if (ctx->fileversion < 3990) {
int tmpk;
overflow = range_get_symbol(ctx, counts_3970, counts_diff_3970);
@ -426,7 +451,19 @@ static inline int ape_decode_value(APEContext *ctx, APERice *rice)
return AVERROR_INVALIDDATA;
}
x += overflow << tmpk;
} else {
update_rice(rice, x);
/* Convert to signed */
if (x & 1)
return (x >> 1) + 1;
else
return -(x >> 1);
}
static inline int ape_decode_value_3990(APEContext *ctx, APERice *rice)
{
unsigned int x, overflow;
int base, pivot;
pivot = rice->ksum >> 5;
@ -460,7 +497,6 @@ static inline int ape_decode_value(APEContext *ctx, APERice *rice)
}
x = base + overflow * pivot;
}
update_rice(rice, x);
@ -471,15 +507,41 @@ static inline int ape_decode_value(APEContext *ctx, APERice *rice)
return -(x >> 1);
}
static void entropy_decode(APEContext *ctx, int blockstodecode, int stereo)
static void entropy_decode_mono_3900(APEContext *ctx, int blockstodecode)
{
int32_t *decoded0 = ctx->decoded[0];
while (blockstodecode--)
*decoded0++ = ape_decode_value_3900(ctx, &ctx->riceY);
}
static void entropy_decode_stereo_3900(APEContext *ctx, int blockstodecode)
{
int32_t *decoded0 = ctx->decoded[0];
int32_t *decoded1 = ctx->decoded[1];
while (blockstodecode--) {
*decoded0++ = ape_decode_value(ctx, &ctx->riceY);
if (stereo)
*decoded1++ = ape_decode_value(ctx, &ctx->riceX);
*decoded0++ = ape_decode_value_3900(ctx, &ctx->riceY);
*decoded1++ = ape_decode_value_3900(ctx, &ctx->riceX);
}
}
static void entropy_decode_mono_3990(APEContext *ctx, int blockstodecode)
{
int32_t *decoded0 = ctx->decoded[0];
while (blockstodecode--)
*decoded0++ = ape_decode_value_3990(ctx, &ctx->riceY);
}
static void entropy_decode_stereo_3990(APEContext *ctx, int blockstodecode)
{
int32_t *decoded0 = ctx->decoded[0];
int32_t *decoded1 = ctx->decoded[1];
while (blockstodecode--) {
*decoded0++ = ape_decode_value_3990(ctx, &ctx->riceY);
*decoded1++ = ape_decode_value_3990(ctx, &ctx->riceX);
}
}
@ -588,12 +650,14 @@ static av_always_inline int predictor_update_filter(APEPredictor *p,
return p->filterA[filter];
}
static void predictor_decode_stereo(APEContext *ctx, int count)
static void predictor_decode_stereo_3950(APEContext *ctx, int count)
{
APEPredictor *p = &ctx->predictor;
int32_t *decoded0 = ctx->decoded[0];
int32_t *decoded1 = ctx->decoded[1];
ape_apply_filters(ctx, ctx->decoded[0], ctx->decoded[1], count);
while (count--) {
/* Predictor Y */
*decoded0 = predictor_update_filter(p, *decoded0, 0, YDELAYA, YDELAYB,
@ -615,12 +679,14 @@ static void predictor_decode_stereo(APEContext *ctx, int count)
}
}
static void predictor_decode_mono(APEContext *ctx, int count)
static void predictor_decode_mono_3950(APEContext *ctx, int count)
{
APEPredictor *p = &ctx->predictor;
int32_t *decoded0 = ctx->decoded[0];
int32_t predictionA, currentA, A, sign;
ape_apply_filters(ctx, ctx->decoded[0], NULL, count);
currentA = p->lastA[0];
while (count--) {
@ -779,11 +845,10 @@ static void ape_unpack_mono(APEContext *ctx, int count)
return;
}
entropy_decode(ctx, count, 0);
ape_apply_filters(ctx, ctx->decoded[0], NULL, count);
ctx->entropy_decode_mono(ctx, count);
/* Now apply the predictor decoding */
predictor_decode_mono(ctx, count);
ctx->predictor_decode_mono(ctx, count);
/* Pseudo-stereo - just copy left channel to right channel */
if (ctx->channels == 2) {
@ -803,11 +868,10 @@ static void ape_unpack_stereo(APEContext *ctx, int count)
return;
}
entropy_decode(ctx, count, 1);
ape_apply_filters(ctx, decoded0, decoded1, count);
ctx->entropy_decode_stereo(ctx, count);
/* Now apply the predictor decoding */
predictor_decode_stereo(ctx, count);
ctx->predictor_decode_stereo(ctx, count);
/* Decorrelate and scale to output depth */
while (count--) {

1
libavformat/mpeg.h
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@ -54,6 +54,7 @@
#define STREAM_TYPE_AUDIO_AAC 0x0f
#define STREAM_TYPE_VIDEO_MPEG4 0x10
#define STREAM_TYPE_VIDEO_H264 0x1b
#define STREAM_TYPE_VIDEO_CAVS 0x42
#define STREAM_TYPE_AUDIO_AC3 0x81
#define STREAM_TYPE_AUDIO_DTS 0x8a

1
libavformat/mpegts.c
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@ -566,6 +566,7 @@ static const StreamType ISO_types[] = {
{ 0x11, AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_AAC_LATM }, /* LATM syntax */
#endif
{ 0x1b, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_H264 },
{ 0x42, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_CAVS },
{ 0xd1, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_DIRAC },
{ 0xea, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_VC1 },
{ 0 },

1
libavformat/mpegts.h
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@ -52,6 +52,7 @@
#define STREAM_TYPE_AUDIO_AAC_LATM 0x11
#define STREAM_TYPE_VIDEO_MPEG4 0x10
#define STREAM_TYPE_VIDEO_H264 0x1b
#define STREAM_TYPE_VIDEO_CAVS 0x42
#define STREAM_TYPE_VIDEO_VC1 0xea
#define STREAM_TYPE_VIDEO_DIRAC 0xd1

3
libavformat/mpegtsenc.c
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@ -288,6 +288,9 @@ static void mpegts_write_pmt(AVFormatContext *s, MpegTSService *service)
case AV_CODEC_ID_H264:
stream_type = STREAM_TYPE_VIDEO_H264;
break;
case AV_CODEC_ID_CAVS:
stream_type = STREAM_TYPE_VIDEO_CAVS;
break;
case AV_CODEC_ID_DIRAC:
stream_type = STREAM_TYPE_VIDEO_DIRAC;
break;

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