Opened 9 years ago
Closed 9 years ago
#4758 closed defect (fixed)
Decoding flac in avi shows incorrect timestamps
Reported by: | edoceo | Owned by: | |
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Priority: | important | Component: | avformat |
Version: | git-master | Keywords: | avi flac regression |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | no | |
Analyzed by developer: | no |
Description
I had an original WebM file, which reported
Duration: 00:07:54.65, start: 0.000000, bitrate: 751 kb/s
Then I transcoded to HuffYUV
ffmpeg -fflags +genpts -i '1f534644-7da1-4f5f-a6bf-fc7ceb4f6072.webm' -c:v huffyuv -b:v 1M -r 24 -pix_fmt yuv422p -c:a flac -ac 2 -f avi -y '1f534644-7da1-4f5f-a6bf-fc7ceb4f6072-P0.huffyuv'
Duration: 00:07:54.91, start: 0.000000, bitrate: 7708 kb/s
Then I transcode back to WebM with below command but the duration is very wrong
Duration: 212:18:27.54, start: 0.000000, bitrate: 0 kb/s
While encoding I can see the timestamp start jumping by large intervals towards the end of the video.
I've uploaded 'ffmpeg-20150805-155732.log' and '1f534644-7da1-4f5f-a6bf-fc7ceb4f6072-P0.huffyuv' to the FTP location.
ffmpeg -fflags +genpts -i '/tmp/1f534644-7da1-4f5f-a6bf-fc7ceb4f6072-P0.huffyuv' -c:v libvpx -crf 10 -b:v 1M -c:a libvorbis -ac 2 -threads 4 -f webm -y '/tmp/1f534644-7da1-4f5f-a6bf-fc7ceb4f6072-P1.webm' ffmpeg version N-48686-gb27d4fd-static http://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.9.3 (Debian 4.9.3-3) configuration: --enable-gpl --enable-version3 --disable-shared --disable-debug --enable-runtime-cpudetect --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libwebp --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libfreetype --enable-fontconfig --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --enable-libopus --enable-libass --enable-gnutls --enable-libvidstab --enable-libsoxr --cc=gcc-4.9 libavutil 54. 29.100 / 54. 29.100 libavcodec 56. 56.101 / 56. 56.101 libavformat 56. 40.101 / 56. 40.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 30.100 / 5. 30.100 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 2.101 / 1. 2.101 libpostproc 53. 3.100 / 53. 3.100 [avi @ 0x38b74a0] non-interleaved AVI Input #0, avi, from '/tmp/1f534644-7da1-4f5f-a6bf-fc7ceb4f6072-P0.huffyuv': Metadata: encoder : Lavf56.40.101 Duration: 00:07:54.91, start: 0.000000, bitrate: 7708 kb/s Stream #0:0: Video: huffyuv (HFYU / 0x55594648), yuv422p, 640x480, 7169 kb/s, SAR 1:1 DAR 4:3, 24 fps, 24 tbr, 24 tbn, 24 tbc Stream #0:1: Audio: flac ([172][241][0][0] / 0xF1AC), 48000 Hz, stereo, s32 (24 bit), 128 kb/s [libvpx @ 0x38b9860] v1.4.0-943-gc1b233d Output #0, webm, to '/tmp/1f534644-7da1-4f5f-a6bf-fc7ceb4f6072-P1.webm': Metadata: encoder : Lavf56.40.101 Stream #0:0: Video: vp8 (libvpx), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 1000 kb/s, 24 fps, 1k tbn, 24 tbc Metadata: encoder : Lavc56.56.101 libvpx Stream #0:1: Audio: vorbis (libvorbis), 48000 Hz, stereo, fltp (24 bit) Metadata: encoder : Lavc56.56.101 libvorbis Stream mapping: Stream #0:0 -> #0:0 (huffyuv (native) -> vp8 (libvpx)) Stream #0:1 -> #0:1 (flac (native) -> vorbis (libvorbis)) Press [q] to stop, [?] for help [webm @ 0x38be580] Starting new cluster due to timestamp41 bitrate= 279.3kbits/s Last message repeated 1 times [libvorbis @ 0x38bb180] Queue input is backward in time6.92 bitrate= 0.2kbits/s [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764047695; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764047716; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764047737; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764047759; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764047780; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764047801; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764047823; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764047844; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764047865; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764047887; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764047908; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764047929; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764047951; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764047972; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764047993; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048015; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048036; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048057; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048079; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048100; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048121; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048143; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048164; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048185; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048207; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048228; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048249; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048271; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048292; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048313; changing to 764306681. This may result in incorrect timestamps in the output file. [webm @ 0x38be580] Non-monotonous DTS in output stream 0:1; previous: 764306681, current: 764048335; changing to 764306681. This may result in incorrect timestamps in the output file. frame= 1873 fps= 40 q=0.0 Lsize= 21063kB time=212:18:27.51 bitrate= 0.2kbits/s video:16625kB audio:4084kB subtitle:0kB other streams:0kB global headers:4kB muxing overhead: 1.710563%
Change History (5)
comment:1 by , 9 years ago
follow-up: 3 comment:2 by , 9 years ago
When I put flac into this avi container ffmpeg proceeds with out any warning or other errors.
For other files it "just works" to use this huffyuv/flac/avi container and convert into WebM or MP4 or other formats.
comment:3 by , 9 years ago
Replying to edoceo:
When I put flac into this avi container ffmpeg proceeds with out any warning or other errors.
I am not saying this is ok but I suspect there are cases where the application cannot know that the user requested writing an invalid file.
For other files it "just works" to use this huffyuv/flac/avi container
Could you provide a working example? I failed to produce one...
(But note that if you can provide a working example, the warning discussed above probably makes no sense.)
comment:4 by , 9 years ago
Component: | undetermined → avformat |
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Keywords: | avi flac regression added; duration webm removed |
Priority: | normal → important |
Summary: | Transcoding from huffyuv to webm creates incorrect timestamps → Decoding flac in avi shows incorrect timestamps |
Looks like a regression since d01144b9d3f592f1140b9f8418e76a126b3a17b0
comment:5 by , 9 years ago
Resolution: | → fixed |
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Status: | new → closed |
Why do you think that you get a valid file if you put flac in avi?