D:\Softwares\dshow2raw>ffmpeg -i ef.mkv -acodec copy -vcodec copy 2.mp4
FFmpeg version SVN-r19180, Copyright (c) 2000-2009 Fabrice Bellard, et al.
configuration:
libavutil 50. 3. 0 / 50. 3. 0
libavcodec52.31. 2 / 52.31. 2
libavformat 52.34. 0 / 52.34. 0
libavdevice 52. 2. 0 / 52. 2. 0
libswscale 0. 7. 1 / 0. 7. 1
built on Jun 13 2009 12:04:12, gcc: 4.4.0
Seems stream 0 codec frame rate differs from container frame rate: 47.95 (54042/
1127) -> 23.98 (24000/1001)
Input #0, matroska, from 'ef.mkv':
Duration: 00:04:44.36, start: 0.000000, bitrate: N/A
Stream #0.0: Video: h264, yuv420p, 1280x720, PAR 1:1 DAR 16:9, 23.98 tbr, 1k
tbn, 47.95 tbc
Stream #0.1: Audio: 0x0000, 48000 Hz, stereo, s16
[mp4 @ 0x8d6b00]track 1: codec frame size is not set
Output #0, mp4, to '2.mp4':
Stream #0.0: Video: 0x0021, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], q=2-31, 54
042 tbn, 23.98 tbc
Stream #0.1: Audio: 0x0040, 48000 Hz, stereo, s16
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Could not write header for output file #0 (incorrect codec parameters ?)
D:\Softwares\dshow2raw>