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additional tweaks to AC3 probe function. give a higher score to a single frame

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at the start of the stream. also read all available data in the probe buffer.

Originally committed as revision 9922 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Justin Ruggles 2007-08-05 00:32:19 +00:00
parent 2bf4aa2e93
commit ecc8fc11ec
1 changed files with 2 additions and 2 deletions
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4
libavformat/raw.c
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@ -419,7 +419,7 @@ static int ac3_probe(AVProbeData *p)
max_frames = 0; max_frames = 0;
buf = p->buf; buf = p->buf;
end = buf + FFMIN(5120, p->buf_size - 7); end = buf + p->buf_size;
for(; buf < end; buf++) { for(; buf < end; buf++) {
buf2 = buf; buf2 = buf;
@ -434,7 +434,7 @@ static int ac3_probe(AVProbeData *p)
first_frames = frames; first_frames = frames;
} }
if (first_frames>=3) return AVPROBE_SCORE_MAX * 3 / 4; if (first_frames>=3) return AVPROBE_SCORE_MAX * 3 / 4;
else if(max_frames>=2) return AVPROBE_SCORE_MAX / 2; else if(max_frames>=2 || first_frames>=1) return AVPROBE_SCORE_MAX / 2;
else if(max_frames>=1) return 1; else if(max_frames>=1) return 1;
else return 0; else return 0;
} }