#10704: FFmpeg cannot transmux file from GXF to MOV
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Reporter: Gavin | Type: defect
Status: new | Priority: normal
Component: avformat | Version: git-master
Keywords: gxf | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Summary of the bug:
Trying to re-wrap a GXF file into an MOV container - contains raw PCM
samples.
It looks like the gxf reader generates AVPackets that contain an invalid
PTS/DTS/duration.
The original file plays fine in `ffplay`
How to reproduce:
{{{
% ffmpeg -i IZ06000_dvcam.gxf -c:v copy -c:a copy IZ06000_dvcam.mov
ffmpeg version N-112866-g66a02a8508 Copyright (c) 2000-2023 the FFmpeg
developers
built with gcc 11 (Ubuntu 11.4.0-1ubuntu1~22.04)
configuration:
libavutil 58. 32.100 / 58. 32.100
libavcodec 60. 35.100 / 60. 35.100
libavformat 60. 18.100 / 60. 18.100
libavdevice 60. 4.100 / 60. 4.100
libavfilter 9. 13.100 / 9. 13.100
libswscale 7. 6.100 / 7. 6.100
libswresample 4. 13.100 / 4. 13.100
Input #0, gxf, from 'IZ06000_dvcam.gxf':
Metadata:
timecode : 00:00:00:00
timecode_at_mark_in: 00:00:00:00
timecode_at_mark_out: 00:00:29:23
Duration: 00:00:29.96, start: 0.000000, bitrate: 18241 kb/s
Stream #0:0: Video: mpeg2video (4:2:2), yuv420p(tv, bt470bg, top first),
720x608 [SAR 152:135 DAR 4:3], 12000 kb/s, 50 fps, 25 tbr, 50 tbn
Side data:
cpb: bitrate max/min/avg: 12000000/0/0 buffer size: 8732672
vbv_delay: N/A
Stream #0:1: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
Stream #0:2: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
Stream #0:3: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
Stream #0:4: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
Stream #0:5: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
Stream #0:6: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
Stream #0:7: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
Stream #0:8: Audio: pcm_s16le, 48000 Hz, mono, s16, 768 kb/s
Stream #0:9: Data: none
Output #0, mov, to 'IZ06000_dvcam.mov':
Metadata:
timecode : 00:00:00:00
timecode_at_mark_in: 00:00:00:00
timecode_at_mark_out: 00:00:29:23
encoder : Lavf60.18.100
Stream #0:0: Video: mpeg2video (4:2:2) (m2v1 / 0x3176326D), yuv420p(tv,
bt470bg, top first), 720x608 [SAR 152:135 DAR 4:3], q=2-31, 12000 kb/s, 50
fps, 25 tbr, 12800 tbn
Side data:
cpb: bitrate max/min/avg: 12000000/0/0 buffer size: 8732672
vbv_delay: N/A
Stream #0:1: Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16,
768 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[mov @ 0x562f19c82980] Timestamps are unset in a packet for stream 0. This
is deprecated and will stop working in the future. Fix your code to set
the timestamps properly
[mov @ 0x562f19c82980] pts has no value
Last message repeated 275 times
[in#0/gxf @ 0x562f19c65480] Error during demuxing: Operation not permitted
[in#0/gxf @ 0x562f19c65480] Error retrieving a packet from demuxer:
Operation not permitted
[mov @ 0x562f19c82980] pts has no value
Last message repeated 5 times
[out#0/mov @ 0x562f19d0cdc0] video:44026kB audio:2812kB subtitle:0kB other
streams:0kB global headers:0kB muxing overhead: 0.012545%
size= 46844kB time=00:00:29.96 bitrate=12808.7kbits/s speed= 708x
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/10704>
FFmpeg <https://ffmpeg.org>
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