For live audio streams, requiring 500 frames for a stream to be detected is a bit overkill.
This allows live ADTS streams that aren't frame-aligned to start up more quickly, e.g. http://mp3.streampower.be/radio1.aac. --- Since the probe buffer size is increased until a good enough probe result is found, I'm not sure how much the previous patch actually helps though. If a false positive stream e.g. has got 200 matching frames but show mismatches after that, chances are that we will first try with a small buffer finding e.g. 70 matching frames, which isn't enough. Next we double the probe buffer size and find 140 matching frames, which we deem enough - even if we would have realized that it's a mismatch if we would have tried with an ever bigger probe buffer, which we won't since we now regard 100 as enough. --- libavformat/aacdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/aacdec.c b/libavformat/aacdec.c index 3aee82b..be213d4 100644 --- a/libavformat/aacdec.c +++ b/libavformat/aacdec.c @@ -65,7 +65,7 @@ static int adts_aac_probe(AVProbeData *p) if (first_frames >= 3) return AVPROBE_SCORE_EXTENSION + 1; - else if (max_frames > 500) + else if (max_frames > 100) return AVPROBE_SCORE_EXTENSION; else if (max_frames >= 3) return AVPROBE_SCORE_EXTENSION / 2; -- 1.8.3.4 (Apple Git-47) _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
