#5418 closed defect (worksforme)
lagarith decoding, missing frames
Reported by: | Selur | Owned by: | |
---|---|---|---|
Priority: | normal | Component: | undetermined |
Version: | unspecified | Keywords: | lagarith |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | no | |
Analyzed by developer: | no |
Description
Summary of the bug:
ffmpeg drops frames instead of 2334 frames the output only contains, 2296 frames when decoding (one second missing)
How to reproduce:
% ffmpeg -y -threads 8 -i "ng2.avi" -map 0:0 -an -sn -vsync 0 -r 6010000/100000 -pix_fmt yuv420p -strict -2 -f yuv4mpegpipe "ng2.y4m"
source: http://www.embedupload.com/?d=5WBPUXJXBF
ffmpeg version used:
ffmpeg version N-79276-g679ae5b-gb0c026a+1 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 5.3.0 (Rev5, Built by MSYS2 project) configuration: --disable-w32threads --enable-fontconfig --enable-gcrypt --enable-libass --enable-libbluray --enable-libbs2b --enable-libfreetype --enable-libfribidi --enable-libkvazaar --enable-libmp3lame --enable-libopus --enable-libsoxr --enable-libspeex --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libxvid --enable-libzimg --enable-libzvbi --enable-avisynth --enable-gpl --disable-debug libavutil 55. 20.100 / 55. 20.100 libavcodec 57. 34.100 / 57. 34.100 libavformat 57. 32.100 / 57. 32.100 libavdevice 57. 0.101 / 57. 0.101 libavfilter 6. 41.100 / 6. 41.100 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 0.101 / 2. 0.101 libpostproc 54. 0.100 / 54. 0.100
Checked the original frame count using the vfw decoder on Windows.
Change History (8)
comment:1 by , 9 years ago
comment:2 by , 9 years ago
Not sure what you want to tell me with 'You are using filter.',...
I use the command line posted above. No additional filtering through '-vf' or 'filter_complex'.
comment:3 by , 9 years ago
You need to post the full console output of your transcoding. And if the input sample were necessary, please use a decent site.
follow-up: 5 comment:4 by , 9 years ago
You need to post the full console output of your transcoding.
here you go:
ffmpeg -y -threads 8 -i "ng2.avi" -map 0:0 -an -sn -vsync 0 -r 6010000/100000 -pix_fmt yuv420p -strict -2 -f yuv4mpegpipe "ng2.y4m" ffmpeg version N-79276-g679ae5b-gb0c026a+1 Copyright (c) 2000-2016 the FFmpeg developers built with gcc 5.3.0 (Rev5, Built by MSYS2 project) configuration: --disable-w32threads --enable-fontconfig --enable-gcrypt --enable-libass --enable-libbluray --enable-libbs2b --enable-libfreetype --enable-libfribidi --enable-libkvazaar --enable-libmp3lame --enable-libopus --enable-libsoxr --enable-libspeex --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libxvid --enable-libzimg --enable-libzvbi --enable-avisynth --enable-gpl --disable-debug libavutil 55. 20.100 / 55. 20.100 libavcodec 57. 34.100 / 57. 34.100 libavformat 57. 32.100 / 57. 32.100 libavdevice 57. 0.101 / 57. 0.101 libavfilter 6. 41.100 / 6. 41.100 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 0.101 / 2. 0.101 libpostproc 54. 0.100 / 54. 0.100 Guessed Channel Layout for Input Stream #0.1 : mono Input #0, avi, from 'ng2.avi': Duration: 00:00:38.84, start: 0.000000, bitrate: 21582 kb/s Stream #0:0: Video: lagarith (LAGS / 0x5347414C), rgb24, 256x232, 21213 kb/s, 60.10 fps, 60.10 tbr, 60.10 tbn, 60.10 tbc Stream #0:1: Audio: pcm_u8 ([1][0][0][0] / 0x0001), 44100 Hz, 1 channels, u8, 352 kb/s Using -vsync 0 and -r can produce invalid output files Output #0, yuv4mpegpipe, to 'ng2.y4m': Metadata: encoder : Lavf57.32.100 Stream #0:0: Video: wrapped_avframe, yuv420p, 256x232, q=2-31, 200 kb/s, 60.10 fps, 60.10 tbn, 60.10 tbc Metadata: encoder : Lavc57.34.100 wrapped_avframe Stream mapping: Stream #0:0 -> #0:0 (lagarith (native) -> wrapped_avframe (native)) Press [q] to stop, [?] for help frame= 2295 fps=1978 q=-0.0 Lsize= 199679kB time=00:00:38.83 bitrate=42120.6kbits/s speed=33.5x video:861kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 23101.568359%
please use a decent site.
For example ?
comment:5 by , 9 years ago
Replying to Selur:
Using -vsync 0 and -r can produce invalid output files
This means that your command line is invalid and you cannot use it to report an issue.
For future tickets: Please do not use such an upload site again, this is absolutely inacceptable.
follow-up: 8 comment:6 by , 9 years ago
Using -vsync 0 and -r can produce invalid output files
okay, then it would be a good idea to make ffmpeg abort and not just post a warning,...
comment:7 by , 9 years ago
Resolution: | → worksforme |
---|---|
Status: | new → closed |
I don't think the input file allows to reproduce an issue that can be fixed, feel free to reopen if you can provide a valid failing command line.
comment:8 by , 9 years ago
Replying to Selur:
okay, then it would be a good idea to make ffmpeg abort and not just post a warning,...
No, it would not, “can” is not a certainty.
You are using filter.