Opened 9 years ago
Closed 9 years ago
#4552 closed defect (fixed)
Broken timestamps for msmpeg4v2 in avi
Reported by: | Carl Eugen Hoyos | Owned by: | |
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Priority: | important | Component: | avformat |
Version: | git-master | Keywords: | avi msmpeg4 dts regression |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | no | |
Analyzed by developer: | no |
Description
A user uploaded a sample for which bad timestamps are produced since ae8168074eb1c8230d9c6482102ca08a70a9c4b0 - possibly related to ticket #4042.
$ ffmpeg -i A-223555-223610-00324.avi -qscale 2 out.avi ffmpeg version N-72081-gec38a1b Copyright (c) 2000-2015 the FFmpeg developers built with gcc 4.7 (SUSE Linux) configuration: --enable-gpl libavutil 54. 23.101 / 54. 23.101 libavcodec 56. 38.101 / 56. 38.101 libavformat 56. 33.101 / 56. 33.101 libavdevice 56. 4.100 / 56. 4.100 libavfilter 5. 16.101 / 5. 16.101 libswscale 3. 1.101 / 3. 1.101 libswresample 1. 1.100 / 1. 1.100 libpostproc 53. 3.100 / 53. 3.100 [avi @ 0x1c56320] non-interleaved AVI Guessed Channel Layout for Input Stream #0.1 : mono Input #0, avi, from 'A-223555-223610-00324.avi': Duration: 00:00:15.04, start: 0.000000, bitrate: 837 kb/s Stream #0:0: Video: msmpeg4v2 (MP42 / 0x3234504D), yuv420p, 384x288, 763 kb/s, 25 fps, 25 tbr, 25 tbn, 25 tbc Stream #0:1: Audio: pcm_u8 ([1][0][0][0] / 0x0001), 8000 Hz, 1 channels, u8, 64 kb/s Please use -q:a or -q:v, -qscale is ambiguous Output #0, avi, to 'out.avi': Metadata: ISFT : Lavf56.33.101 Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 384x288, q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc Metadata: encoder : Lavc56.38.101 mpeg4 Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 8000 Hz, mono, fltp, 96 kb/s Metadata: encoder : Lavc56.38.101 ac3 Stream mapping: Stream #0:0 -> #0:0 (msmpeg4v2 (native) -> mpeg4 (native)) Stream #0:1 -> #0:1 (pcm_u8 (native) -> ac3 (native)) Press [q] to stop, [?] for help [avi @ 0x1c692c0] Non-monotonous DTS in output stream 0:1; previous: 2, current: 0; changing to 3. This may result in incorrect timestamps in the output file. [avi @ 0x1c692c0] Non-monotonous DTS in output stream 0:1; previous: 3, current: 0; changing to 4. This may result in incorrect timestamps in the output file. [avi @ 0x1c692c0] Non-monotonous DTS in output stream 0:1; previous: 4, current: 0; changing to 5. This may result in incorrect timestamps in the output file. ... [avi @ 0x1c692c0] Non-monotonous DTS in output stream 0:1; previous: 74, current: 0; changing to 75. This may result in incorrect timestamps in the output file. [avi @ 0x1c692c0] Non-monotonous DTS in output stream 0:1; previous: 75, current: 0; changing to 76. This may result in incorrect timestamps in the output file. [avi @ 0x1c692c0] Non-monotonous DTS in output stream 0:1; previous: 76, current: 0; changing to 77. This may result in incorrect timestamps in the output file. frame= 324 fps=0.0 q=2.0 Lsize= 4146kB time=00:00:15.04 bitrate=2258.4kbits/s video:3950kB audio:176kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.496279%
Playing the file with FFplay leads to heavy A/V desync.
Attachments (1)
Change History (2)
by , 9 years ago
Attachment: | A-223555-223610-00324.avi added |
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comment:1 by , 9 years ago
Resolution: | → fixed |
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Status: | new → closed |
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Fixed in 488383afd1275f6da53e9c83bc209c2f70d768ef