Browse Source

Merge commit 'f66d0c57b13c1b7102e1e353237af178960dd3c5'

* commit 'f66d0c57b13c1b7102e1e353237af178960dd3c5':
  latm: Add a probe function

Conflicts:
	libavformat/rawdec.c

See: 47818b2a67
See: 097f668047
Merged-by: Michael Niedermayer <michaelni@gmx.at>
tags/n2.3
Michael Niedermayer 11 years ago
parent
commit
4210cbf193
2 changed files with 19 additions and 10 deletions
  1. +17
    -10
      libavformat/loasdec.c
  2. +2
    -0
      libavformat/rawdec.c

+ 17
- 10
libavformat/loasdec.c View File

@@ -25,6 +25,8 @@
#include "internal.h"
#include "rawdec.h"

#define LOAS_SYNC_WORD 0x2b7

static int loas_probe(AVProbeData *p)
{
int max_frames = 0, first_frames = 0;
@@ -35,27 +37,32 @@ static int loas_probe(AVProbeData *p)
const uint8_t *end = buf0 + p->buf_size - 3;
buf = buf0;

for(; buf < end; buf= buf2+1) {
for (; buf < end; buf = buf2 + 1) {
buf2 = buf;

for(frames = 0; buf2 < end; frames++) {
for (frames = 0; buf2 < end; frames++) {
uint32_t header = AV_RB24(buf2);
if((header >> 13) != 0x2B7)
if ((header >> 13) != LOAS_SYNC_WORD)
break;
fsize = (header & 0x1FFF) + 3;
if(fsize < 7)
if (fsize < 7)
break;
fsize = FFMIN(fsize, end - buf2);
buf2 += fsize;
}
max_frames = FFMAX(max_frames, frames);
if(buf == buf0)
first_frames= frames;
if (buf == buf0)
first_frames = frames;
}
if (first_frames>=3) return AVPROBE_SCORE_EXTENSION+1;
else if(max_frames>100)return AVPROBE_SCORE_EXTENSION;
else if(max_frames>=3) return AVPROBE_SCORE_EXTENSION / 2;
else return 0;

if (first_frames >= 3)
return AVPROBE_SCORE_EXTENSION + 1;
else if (max_frames > 100)
return AVPROBE_SCORE_EXTENSION;
else if (max_frames >= 3)
return AVPROBE_SCORE_EXTENSION / 2;
else
return 0;
}

static int loas_read_header(AVFormatContext *s)


+ 2
- 0
libavformat/rawdec.c View File

@@ -28,6 +28,7 @@
#include "libavutil/parseutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/avassert.h"
#include "libavutil/intreadwrite.h"

#define RAW_PACKET_SIZE 1024

@@ -121,6 +122,7 @@ AVInputFormat ff_data_demuxer = {
#endif

#if CONFIG_LATM_DEMUXER

AVInputFormat ff_latm_demuxer = {
.name = "latm",
.long_name = NULL_IF_CONFIG_SMALL("raw LOAS/LATM"),


Loading…
Cancel
Save