Я использую эту команду для преобразования
ffmpeg -i spider.mkv -acodec libfaac -ar 48000 -ab 128k -ac 2 -vcodec libx264 -vf "scale=480:-1" -r 24 -f mpegts spider.ts
но отметка времени кадров в выходном файле (spider.ts) отличается от исходного файла.
Кадр в 1:00:00
в spider.mkv отличается от кадра в 1:00:00
в spider.ts
В чем причина этого? И какой вариант я должен использовать, чтобы решить это?
Вывод FFmpeg:
ffmpeg version N-44232-gd93a53a Copyright (c) 2000-2012 the FFmpeg developers
built on Sep 12 2012 13:20:28 with Apple clang version 4.0 (tags/Apple/clang-421.0.60) (based on LLVM 3.1svn)
configuration: --enable-nonfree --enable-libfaac --enable-libfreetype --enable-libmp3lame --enable-libx264 --enable-gpl --cc=cc --cxx=c++ --extra-cflags=-I/usr/X11/include/freetype2/freetype --extra-cflags=-I/usr/X11/include/freetype2 --extra-cflags=-I/usr/X11/include --extra-ldflags=-L/usr/X11/lib --extra-ldflags=-lfreetype --extra-ldflags=-lz --extra-ldflags=-lbz2
libavutil 51. 72.100 / 51. 72.100
libavcodec 54. 55.100 / 54. 55.100
libavformat 54. 25.105 / 54. 25.105
libavdevice 54. 2.100 / 54. 2.100
libavfilter 3. 16.100 / 3. 16.100
libswscale 2. 1.101 / 2. 1.101
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, matroska,webm, from 'spider.mkv':
Metadata:
creation_time : 2012-10-28 04:27:50
Duration: 02:16:17.16, start: 0.000000, bitrate: 1629 kb/s
Stream #0:0(eng): Video: h264 (High), yuv420p, 1280x544 [SAR 1:1 DAR 40:17], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
Stream #0:1(eng): Audio: dts (DTS), 48000 Hz, 5.1(side), s16, 768 kb/s (default)
[mpegts @ 0x7fc151035e00] muxrate VBR, pcr every 2 pkts, sdt every 200, pat/pmt every 40 pkts
Output #0, mpegts, to 'spideddr.ts':
Metadata:
encoder : Lavf54.25.105
Stream #0:0(eng): Video: h264, yuv420p, 480x204 [SAR 1:1 DAR 40:17], q=-1--1, 90k tbn, 24 tbc (default)
Stream #0:1(eng): Audio: aac, 48000 Hz, stereo, s16, 128 kb/s (default)
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> libx264)
Stream #0:1 -> #0:1 (dca -> libfaac)
Press [q] to stop, [?] for help
number of reference frames (0+6) exceeds max (5; probably corrupt input), discarding onedrop=0
[h264 @ 0x7fc152380600] number of reference frames (0+6) exceeds max (5; probably corrupt input), discarding one
number of reference frames (0+6) exceeds max (5; probably corrupt input), discarding onedrop=0
number of reference frames (0+6) exceeds max (5; probably corrupt input), discarding one drop=0
number of reference frames (0+6) exceeds max (5; probably corrupt input), discarding one drop=0
number of reference frames (0+6) exceeds max (5; probably corrupt input), discarding one drop=0
number of reference frames (0+6) exceeds max (5; probably corrupt input), discarding one drop=0
number of reference frames (0+6) exceeds max (5; probably corrupt input), discarding one drop=0
number of reference frames (0+6) exceeds max (5; probably corrupt input), discarding one drop=0
[h264 @ 0x7fc152381e00] mmco: unref short failure
[h264 @ 0x7fc152381e00] number of reference frames (0+6) exceeds max (5; probably corrupt input), discarding one
[h264 @ 0x7fc15237ee00] reference picture missing during reorder
[h264 @ 0x7fc15237ee00] Missing reference picture
[h264 @ 0x7fc15237ee00] reference picture missing during reorder
[h264 @ 0x7fc15237ee00] Missing reference picture
[h264 @ 0x7fc15237ee00] reference picture missing during reorder
[h264 @ 0x7fc15237ee00] Missing reference picture
[h264 @ 0x7fc152380000] mmco: unref short failure
[h264 @ 0x7fc152380000] number of reference frames (0+6) exceeds max (5; probably corrupt input), discarding one
[h264 @ 0x7fc15237ee00] reference picture missing during reorder
[h264 @ 0x7fc15237ee00] Missing reference picture
[h264 @ 0x7fc152381800] mmco: unref short failure
number of reference frames (0+6) exceeds max (5; probably corrupt input), discarding one drop=0
Read error20 fps=172 q=25.0 size= 226486kB time=01:18:37.84 bitrate= 393.3kbits/s dup=113 drop=0
frame=113267 fps=172 q=-1.0 Lsize= 226680kB time=01:18:39.46 bitrate= 393.5kbits/s dup=113 drop=0
video:120521kB audio:73724kB subtitle:0 global headers:0kB muxing overhead 16.698057%