Я сегментирую 20-минутное видео на сотни маленьких клипов. Команда похожа
ffmpeg\\ffmpeg -i nx_1.avi -ss 399.37 -t 1 ka1_2.avi
Ffmpeg находится в подпапке.
Это работает очень хорошо для большинства моих видео файлов. Проблема в одном файле, для этого файла, в некотором сегментированном клипе есть только аудио, соответствующее видео явно не было записано в клип. (Прикрепленный файл журнала ниже.). Но сегментированные ролики в другой части видео хороши. И аудио и видео в порядке. Я попытался сегментировать более длинный клип, чтобы окружить проблемную часть исходного видео и воспроизвести его. Клип играет нормально, пока проблемная часть, он застыл в начале проблемной части.
Я использую ffprobe для проверки avi, он говорит, что индекс ODML недействителен. Я думаю, что это проблема.
Как я могу решить эту проблему?
Журнальный файл:
ffmpeg started on 2013-05-07 at 10:29:33
Report written to "ffmpeg-20130507-102933.log"
Command line:
"ffmpeg\\\\ffmpeg" -i nx_1.avi -ss 399.37 -t 1 ka1_2.avi -report
ffmpeg version N-51683-g9dc88ac Copyright (c) 2000-2013 the FFmpeg developers
built on Apr 8 2013 21:22:02 with gcc 4.8.0 (GCC)
configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
libavutil 52. 25.100 / 52. 25.100
libavcodec 55. 2.100 / 55. 2.100
libavformat 55. 1.100 / 55. 1.100
libavdevice 55. 0.100 / 55. 0.100
libavfilter 3. 49.101 / 3. 49.101
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 2.100 / 52. 2.100
Splitting the commandline.
Reading option '-i' ... matched as input file with argument 'nx_1.avi'.
Reading option '-ss' ... matched as option 'ss' (set the start time offset) with argument '399.37'.
Reading option '-t' ... matched as option 't' (record or transcode "duration" seconds of audio/video) with argument '1'.
Reading option 'ka1_2.avi' ... matched as output file.
Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option report (generate a report) with argument 1.
Successfully parsed a group of options.
Parsing a group of options: input file nx_1.avi.
Successfully parsed a group of options.
Opening an input file: nx_1.avi.
[avi @ 007c8f40] Format avi probed with size=2048 and score=100
[avi @ 01d9b800] use odml:1
st:0 removing common factor 400000 from timebase
[avi @ 007c8f40] File is truncated adjusting duration
[avi @ 007c8f40] ODML index invalid
[avi @ 007c8f40] ODML index invalid
[avi @ 007c8f40] ODML index invalid
[avi @ 007c8f40] ODML index invalid
[avi @ 007c8f40] ODML index invalid
[avi @ 007c8f40] ODML index invalid
st:1 removing common factor 4 from timebase
[avi @ 007c8f40] ODML index invalid
[avi @ 007c8f40] non-interleaved AVI
[avi @ 007c8f40] File position before avformat_find_stream_info() is 64668
[avi @ 007c8f40] parser not found for codec dvvideo, packets or times may be invalid.
[avi @ 007c8f40] parser not found for codec pcm_s16le, packets or times may be invalid.
[avi @ 007c8f40] parser not found for codec dvvideo, packets or times may be invalid.
[avi @ 007c8f40] parser not found for codec pcm_s16le, packets or times may be invalid.
[avi @ 007c8f40] All info found
[avi @ 007c8f40] File position after avformat_find_stream_info() is 3733036
Guessed Channel Layout for Input Stream #0.1 : stereo
Input #0, avi, from 'nx_1.avi':
Duration: 00:04:05.12, start: 0.000000, bitrate: 7187 kb/s
Stream #0:0, 1, 1/25: Video: dvvideo (dvsd / 0x64737664), yuv420p, 720x576 [SAR 16:15 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
Stream #0:1, 1, 1/48000: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 48000 Hz, stereo, s16, 1536 kb/s
Successfully opened the file.
Parsing a group of options: output file ka1_2.avi.
Applying option ss (set the start time offset) with argument 399.37.
Applying option t (record or transcode "duration" seconds of audio/video) with argument 1.
Successfully parsed a group of options.
Opening an output file: ka1_2.avi.
Successfully opened the file.
[buffer @ 007c6fe0] Setting entry with key 'video_size' to value '720x576'
[buffer @ 007c6fe0] Setting entry with key 'pix_fmt' to value '0'
[buffer @ 007c6fe0] Setting entry with key 'time_base' to value '1/25'
[buffer @ 007c6fe0] Setting entry with key 'pixel_aspect' to value '16/15'
[buffer @ 007c6fe0] Setting entry with key 'sws_param' to value 'flags=2'
[buffer @ 007c6fe0] Setting entry with key 'frame_rate' to value '25/1'
[graph 0 input from stream 0:0 @ 007cdda0] w:720 h:576 pixfmt:yuv420p tb:1/25 fr:25/1 sar:16/15 sws_param:flags=2
[AVFilterGraph @ 01d9b2e0] query_formats: 4 queried, 3 merged, 0 already done, 0 delayed
[abuffer @ 007c6f60] Setting entry with key 'time_base' to value '1/48000'
[abuffer @ 007c6f60] Setting entry with key 'sample_rate' to value '48000'
[abuffer @ 007c6f60] Setting entry with key 'sample_fmt' to value 's16'
[abuffer @ 007c6f60] Setting entry with key 'channel_layout' to value '0x3'
[graph 1 input from stream 0:1 @ 007ca880] tb:1/48000 samplefmt:s16 samplerate:48000 chlayout:0x3
[aformat @ 007cde40] Setting entry with key 'sample_fmts' to value 's32p,fltp,s16p'
[aformat @ 007cde40] Setting entry with key 'sample_rates' to value '44100,48000,32000,22050,24000,16000,11025,12000,8000'
[aformat @ 007cde40] Setting entry with key 'channel_layouts' to value '0x4,0x3'
[audio format for output stream 0:1 @ 007ca940] auto-inserting filter 'auto-inserted resampler 0' between the filter 'Parsed_anull_0' and the filter 'audio format for output stream 0:1'
[AVFilterGraph @ 007c9740] query_formats: 4 queried, 9 merged, 3 already done, 0 delayed
[auto-inserted resampler 0 @ 007ca9a0] ch:2 chl:stereo fmt:s16 r:48000Hz -> ch:2 chl:stereo fmt:s16p r:48000Hz
[mpeg4 @ 021f0060] detected 8 logical cores
[mpeg4 @ 021f0060] intra_quant_bias = 0 inter_quant_bias = -64
[dvvideo @ 007ccd60] detected 8 logical cores
Output #0, avi, to 'ka1_2.avi':
Metadata:
ISFT : Lavf55.1.100
Stream #0:0, 0, 1/25: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 720x576 [SAR 16:15 DAR 4:3], q=2-31, 200 kb/s, 25 tbn, 25 tbc
Stream #0:1, 0, 3/125: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, stereo, s16p
Stream mapping:
Stream #0:0 -> #0:0 (dvvideo -> mpeg4)
Stream #0:1 -> #0:1 (pcm_s16le -> libmp3lame)
Press [q] to stop, [?] for help
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
frame= 0 fps=0.0 q=0.0 size= 10kB time=00:00:00.00 bitrate=N/A
EOF on sink link output stream 0:0:default.
No more output streams to write to, finishing.
[libmp3lame @ 021f0440] Trying to remove 47 more samples than there are in the queue
frame= 0 fps=0.0 q=0.0 Lsize= 27kB time=00:00:01.03 bitrate= 213.5kbits/s
video:0kB audio:16kB subtitle:0 global headers:0kB muxing overhead 66.787791%
[AVIOContext @ 01d9a200] Statistics: 10 seeks, 51 writeouts
[AVIOContext @ 01d98d20] Statistics: 1566764528 bytes read, 16520 seeks