#10802: misleading error message in dv muxer? -------------------------------------+------------------------------------- Reporter: Andrew-R | Type: defect Status: new | Priority: minor Component: | Version: git- undetermined | master Keywords: dvvideo | Blocked By: Blocking: | Reproduced by developer: 0 Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: How to reproduce: download dv-avi-test.avi from http://samples.mplayerhq.hu/avi/DV-type2/ I tried to un-wrap it to make raw dv stream for testing {{{ /dev/shm/ffmpeg/ffmpeg -i dv-avi-test.avi -c:v copy -an dv-test.dv ffmpeg version N-112149-ga87a52ed0b Copyright (c) 2000-2024 the FFmpeg developers built with gcc 11.2.0 (GCC) configuration: libavutil 58. 36.101 / 58. 36.101 libavcodec 60. 37.100 / 60. 37.100 libavformat 60. 20.100 / 60. 20.100 libavdevice 60. 4.100 / 60. 4.100 libavfilter 9. 17.100 / 9. 17.100 libswscale 7. 6.100 / 7. 6.100 libswresample 4. 13.100 / 4. 13.100 [avi @ 0xb2c3700] Switching to NI mode, due to poor interleaving Input #0, avi, from 'dv-avi-test.avi': Duration: 00:04:53.09, start: 0.000000, bitrate: 286 kb/s Stream #0:0: Video: dvvideo, yuv411p, 720x480 [SAR 32:27 DAR 16:9], 28771 kb/s, 60k fps, 29.97 tbr, 60k tbn Stream #0:1: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s Stream mapping: Stream #0:0 -> #0:0 (copy) Output #0, dv, to 'dv-test.dv': Metadata: encoder : Lavf60.20.100 Stream #0:0: Video: dvvideo, yuv411p, 720x480 [SAR 32:27 DAR 16:9], q=2-31, 28771 kb/s, 60k fps, 29.97 tbr, 29.97 tbn Press [q] to stop, [?] for help [dv @ 0xb368a00] Unexpected frame size, 0 != 120000 [vost#0:0/copy @ 0xb3693c0] Error submitting a packet to the muxer: Function not implemented Last message repeated 1 times [out#0/dv @ 0xb2c6a40] Error muxing a packet [out#0/dv @ 0xb2c6a40] Task finished with error code: -38 (Function not implemented) [out#0/dv @ 0xb2c6a40] Terminating thread with return code -38 (Function not implemented) [out#0/dv @ 0xb2c6a40] video:10078kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000% size= 10078kB time=00:00:02.90 bitrate=28440.5kbits/s speed= 190x Conversion failed! }}} yet in fact (?) conversion worked, I see file {{{ /dev/shm/ffmpeg/ffprobe dv-test.dv ffprobe version N-112149-ga87a52ed0b Copyright (c) 2007-2024 the FFmpeg developers built with gcc 11.2.0 (GCC) configuration: libavutil 58. 36.101 / 58. 36.101 libavcodec 60. 37.100 / 60. 37.100 libavformat 60. 20.100 / 60. 20.100 libavdevice 60. 4.100 / 60. 4.100 libavfilter 9. 17.100 / 9. 17.100 libswscale 7. 6.100 / 7. 6.100 libswresample 4. 13.100 / 4. 13.100 [dv @ 0xc1f4bc0] Estimating duration from bitrate, this may be inaccurate Input #0, dv, from 'dv-test.dv': Metadata: timecode : 00:00:00:00 Duration: 00:00:02.87, start: 0.000000, bitrate: 28771 kb/s Stream #0:0: Video: dvvideo, yuv411p, 720x480 [SAR 32:27 DAR 16:9], 28771 kb/s, 60k fps, 29.97 tbr, 60k tbn Stream #0:1: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s }}} If I try to make it encode audio, I get: {{{ /dev/shm/ffmpeg/ffmpeg -i dv-avi-test.avi -c:v copy -c:a pcm_s16be -af aresample=48000 dv-test.dv ffmpeg version N-112149-ga87a52ed0b Copyright (c) 2000-2024 the FFmpeg developers built with gcc 11.2.0 (GCC) configuration: libavutil 58. 36.101 / 58. 36.101 libavcodec 60. 37.100 / 60. 37.100 libavformat 60. 20.100 / 60. 20.100 libavdevice 60. 4.100 / 60. 4.100 libavfilter 9. 17.100 / 9. 17.100 libswscale 7. 6.100 / 7. 6.100 libswresample 4. 13.100 / 4. 13.100 [avi @ 0xb48b700] Switching to NI mode, due to poor interleaving Input #0, avi, from 'dv-avi-test.avi': Duration: 00:04:53.09, start: 0.000000, bitrate: 286 kb/s Stream #0:0: Video: dvvideo, yuv411p, 720x480 [SAR 32:27 DAR 16:9], 28771 kb/s, 60k fps, 29.97 tbr, 60k tbn Stream #0:1: Audio: pcm_s16le, 44100 Hz, stereo, s16, 1411 kb/s Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (pcm_s16le (native) -> pcm_s16be (native)) Press [q] to stop, [?] for help [dv @ 0xb530ac0] Can't initialize DV format! Make sure that you supply exactly two streams: video: 25fps or 29.97fps, audio: 2ch/48|44|32kHz/PCM (50Mbps allows an optional second audio stream) [out#0/dv @ 0xb5309c0] Could not write header (incorrect codec parameters ?): Operation not permitted [af#0:1 @ 0xb532b00] Error sending frames to consumers: Operation not permitted [af#0:1 @ 0xb532b00] Task finished with error code: -1 (Operation not permitted) [af#0:1 @ 0xb532b00] Terminating thread with return code -1 (Operation not permitted) [out#0/dv @ 0xb5309c0] Nothing was written into output file, because at least one of its streams received no packets. size= 0kB time=N/A bitrate=N/A speed=N/A Conversion failed! }}} Note that example itself appear to be black frame. -- Ticket URL: <https://trac.ffmpeg.org/ticket/10802> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker