[issue2071] AC3 audio is not detected in MPEG TS stream
Sean McGovern gsean...@gmail.com added the comment: adding self to nosy. -- nosy: +seanmcg FFmpeg issue tracker iss...@roundup.ffmpeg.org https://roundup.ffmpeg.org/issue2071
[issue2071] AC3 audio is not detected in MPEG TS stream
Baptiste Coudurier baptiste.coudur...@gmail.com added the comment: Change priority, this is not important, only crashes are important. -- priority: important - normal FFmpeg issue tracker iss...@roundup.ffmpeg.org https://roundup.ffmpeg.org/issue2071
[issue2071] AC3 audio is not detected in MPEG TS stream
Carl Eugen Hoyos ceho...@rainbow.studorg.tuwien.ac.at added the comment: Since this is a regression, I do believe it is (very) important. After all, we don't support the working version(s). -- priority: normal - important FFmpeg issue tracker iss...@roundup.ffmpeg.org https://roundup.ffmpeg.org/issue2071
[issue2071] AC3 audio is not detected in MPEG TS stream
Ho Tuan t...@post.harvard.edu added the comment: Have any fixes been proposed for this issue? This still seems to be a problem for some ATSC streams (but not all). Interestingly, I get the same issue when pulling from my local Fox HD station (in Boston), where it successfully probes and detects the video, but not the audio. Duration: N/A, start: 16973.214133, bitrate: 19000 kb/s Stream #0.0[0x31], 159, 1/9: Video: mpeg2video, yuv420p, 1280x720 [PAR 1:1 DA R 16:9], 1001/12, 19000 kb/s, 61.93 fps, 59.94 tbr, 90k tbn, 119.88 tbc Stream #0.1[0x34], 82, 1/9: Data: [0][0][0][0] / 0x FFmpeg issue tracker iss...@roundup.ffmpeg.org https://roundup.ffmpeg.org/issue2071
[issue2071] AC3 audio is not detected in MPEG TS stream
Vlad Seryakov vserya...@gmail.com added the comment: I was able to go back and revision 19067 detects and process this stream fine FFmpeg issue tracker iss...@roundup.ffmpeg.org https://roundup.ffmpeg.org/issue2071
[issue2071] AC3 audio is not detected in MPEG TS stream
Justin Ruggles justin.rugg...@gmail.com added the comment: Baptiste Coudurier wrote: Baptiste Coudurier baptiste.coudur...@gmail.com added the comment: On 7/5/10 1:20 AM, Carl Eugen Hoyos wrote: Carl Eugen Hoyosceho...@rainbow.studorg.tuwien.ac.at added the comment: [mpegts @ 0x11bf470] probing stream 1 Last message repeated 75 times [mpegts @ 0x11bf470] Probe buffer size limit 500 reached [mpegts @ 0x11bf470] probing stream 1 Last message repeated 3 times Input #0, mpegts, from 'mpegts_ac3_not_detected.ts': Duration: 00:00:07.85, start: 51368.546678, bitrate: 14076 kb/s Stream #0.0[0x31], 165, 1/9: Video: mpeg2video, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], 1001/12, 14950 kb/s, 66.49 fps, 59.94 tbr, 90k tbn, 119.88 tbc Stream #0.1[0x34], 85, 1/9: Data: [0][0][0][0] / 0x At least one output file must be specified What happens during the probing ? Stream 1 doesn't get probbed as ac3, is there a conflict between probes (ie multiple codec returning the same probe score) ? The packets apparently do not start exactly on an AC-3 frame boundary, so the best probe score is AVPROBE_SCORE_MAX/4. This happens to be right at the threshold for detecting a codec via CODEC_ID_PROBE. I'm not sure what the best solution would be, raise the score, lower the threshold, or something else... FFmpeg issue tracker iss...@roundup.ffmpeg.org https://roundup.ffmpeg.org/issue2071
[issue2071] AC3 audio is not detected in MPEG TS stream
Carl Eugen Hoyos ceho...@rainbow.studorg.tuwien.ac.at added the comment: Works fine with mplayer -demuxer mpegts and this is a regression since r22831, therefore related to issue 1871. ffmpeg -loglevel 99 -acodec ac3 -i mpegts_ac3_not_detected.ts FFmpeg version SVN-r24035, Copyright (c) 2000-2010 the FFmpeg developers built on Jul 4 2010 11:29:50 with gcc 4.4.4 configuration: --cc=/usr/local/gcc-4.4.4/bin/gcc libavutil 50.20. 0 / 50.20. 0 libavcodec52.79. 1 / 52.79. 1 libavformat 52.73. 0 / 52.73. 0 libavdevice 52. 2. 0 / 52. 2. 0 libavfilter1.20. 1 / 1.20. 1 libswscale 0.11. 0 / 0.11. 0 [NULL @ 0x11bf470] Probed with size=2048 and score=100 [mpegts @ 0x11bf470] stream=0 stream_type=0 pid=31 prog_reg_desc= [mpegts @ 0x11bf470] stream=1 stream_type=0 pid=34 prog_reg_desc= [mpegts @ 0x11bf470] probing stream 0 [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 [mpegts @ 0x11bf470] Probe with size=577951, packets=19 detected mpegvideo with score=51 [mpegts @ 0x11bf470] probed stream 0 [mpegts @ 0x11bf470] probing stream 1 Last message repeated 31 times [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 Last message repeated 75 times [mpegts @ 0x11bf470] Probe buffer size limit 500 reached [mpegts @ 0x11bf470] probing stream 1 Last message repeated 3 times Input #0, mpegts, from 'mpegts_ac3_not_detected.ts': Duration: 00:00:07.85, start: 51368.546678, bitrate: 14076 kb/s Stream #0.0[0x31], 165, 1/9: Video: mpeg2video, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], 1001/12, 14950 kb/s, 66.49 fps, 59.94 tbr, 90k tbn, 119.88 tbc Stream #0.1[0x34], 85, 1/9: Data: [0][0][0][0] / 0x At least one output file must be specified -- priority: normal - important status: new - open substatus: new - reproduced topic: +avformat, regression FFmpeg issue tracker iss...@roundup.ffmpeg.org https://roundup.ffmpeg.org/issue2071
[issue2071] AC3 audio is not detected in MPEG TS stream
Baptiste Coudurier baptiste.coudur...@gmail.com added the comment: On 7/5/10 1:20 AM, Carl Eugen Hoyos wrote: Carl Eugen Hoyosceho...@rainbow.studorg.tuwien.ac.at added the comment: Works fine with mplayer -demuxer mpegts and this is a regression since r22831, therefore related to issue 1871. ffmpeg -loglevel 99 -acodec ac3 -i mpegts_ac3_not_detected.ts FFmpeg version SVN-r24035, Copyright (c) 2000-2010 the FFmpeg developers built on Jul 4 2010 11:29:50 with gcc 4.4.4 configuration: --cc=/usr/local/gcc-4.4.4/bin/gcc libavutil 50.20. 0 / 50.20. 0 libavcodec52.79. 1 / 52.79. 1 libavformat 52.73. 0 / 52.73. 0 libavdevice 52. 2. 0 / 52. 2. 0 libavfilter1.20. 1 / 1.20. 1 libswscale 0.11. 0 / 0.11. 0 [NULL @ 0x11bf470] Probed with size=2048 and score=100 [mpegts @ 0x11bf470] stream=0 stream_type=0 pid=31 prog_reg_desc= [mpegts @ 0x11bf470] stream=1 stream_type=0 pid=34 prog_reg_desc= [mpegts @ 0x11bf470] probing stream 0 [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 [mpegts @ 0x11bf470] probing stream 1 [mpegts @ 0x11bf470] probing stream 0 [mpegts @ 0x11bf470] Probe with size=577951, packets=19 detected mpegvideo with score=51 [mpegts @ 0x11bf470] probed stream 0 [mpegts @ 0x11bf470] probing stream 1 Last message repeated 31 times [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 [mpeg2video @ 0x11c2990] mpeg_decode_postinit() failure Last message repeated 1 times [mpegts @ 0x11bf470] probing stream 1 Last message repeated 75 times [mpegts @ 0x11bf470] Probe buffer size limit 500 reached [mpegts @ 0x11bf470] probing stream 1 Last message repeated 3 times Input #0, mpegts, from 'mpegts_ac3_not_detected.ts': Duration: 00:00:07.85, start: 51368.546678, bitrate: 14076 kb/s Stream #0.0[0x31], 165, 1/9: Video: mpeg2video, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], 1001/12, 14950 kb/s, 66.49 fps, 59.94 tbr, 90k tbn, 119.88 tbc Stream #0.1[0x34], 85, 1/9: Data: [0][0][0][0] / 0x At least one output file must be specified What happens during the probing ? Stream 1 doesn't get probbed as ac3, is there a conflict between probes (ie multiple codec returning the same probe score) ? FFmpeg issue tracker iss...@roundup.ffmpeg.org https://roundup.ffmpeg.org/issue2071
[issue2071] AC3 audio is not detected in MPEG TS stream
New submission from Vlad Seryakov vserya...@gmail.com: Playing DVB stream on ATSC Fox HD 5.1 channel, no audio detected. mplayer plays it just fine. [root ffmpeg]# ./ffmpeg -i /dev/dvb/adapter1/dvr0 FFmpeg version SVN-r24051, Copyright (c) 2000-2010 the FFmpeg developers built on Jul 4 2010 22:21:52 with gcc 4.5.0 20100610 (prerelease) configuration: --extra-cflags=-DDEBUG libavutil 50.20. 0 / 50.20. 0 libavcodec52.79. 1 / 52.79. 1 libavformat 52.73. 0 / 52.73. 0 libavdevice 52. 2. 0 / 52. 2. 0 libavfilter1.20. 1 / 1.20. 1 libswscale 0.11. 0 / 0.11. 0 [mpeg2video @ 0xa0c38d0] mpeg_decode_postinit() failure Last message repeated 7 times [mpegts @ 0xa0bf510] Estimating duration from bitrate, this may be inaccurate Input #0, mpegts, from '/dev/dvb/adapter1/dvr0': Duration: N/A, start: 81320.034678, bitrate: 14950 kb/s Stream #0.0[0x34]: Data: [0][0][0][0] / 0x Stream #0.1[0x31]: Video: mpeg2video, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], 14950 kb/s, 62.09 fps, 59.94 tbr, 90k tbn, 119.88 tbc At least one output file must be specified Sample is uploaded in mpegts_ac3_not_detected/ -- messages: 11095 priority: normal status: new substatus: new title: AC3 audio is not detected in MPEG TS stream type: bug FFmpeg issue tracker iss...@roundup.ffmpeg.org https://roundup.ffmpeg.org/issue2071
