[FFmpeg-user] stream copy video / re-enc audio
Mike F
paziu at yahoo.com
Sun Sep 29 17:16:51 CEST 2013
>
> Is the problem also reproducible with -c:a aac ?
>
> Please do not top-post here, Carl Eugen
>
Hello,
yes, it is the same issue with -c:a aac:
# ffmpeg -y -i c61,avi -c:a aac -b:a 128k -ac 2 -threads 12 -c:v copy -map 0:0 -map 0:1 -c:s copy -strict experimental c61.mkv -v debug
ffmpeg version 2.0 Copyright (c) 2000-2013 the FFmpeg developers
built on Aug 6 2013 10:47:57 with gcc 4.5.2 (Gentoo 4.5.2 p1.1, pie-0.4.5)
configuration: --enable-libx264 --enable-libxvid --enable-libfaac --enable-libmp3lame --enable-libvorbis --enable-gpl --enable-nonfree --enable-libtheora --enable-x11grab --enable-vdpau --enable-libfdk-aac --enable-libass --enable-libvpx --enable-libaacplus
libavutil 52. 38.100 / 52. 38.100
libavcodec 55. 18.102 / 55. 18.102
libavformat 55. 12.100 / 55. 12.100
libavdevice 55. 3.100 / 55. 3.100
libavfilter 3. 79.101 / 3. 79.101
libswscale 2. 3.100 / 2. 3.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 3.100 / 52. 3.100
Splitting the commandline.
Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
Reading option '-i' ... matched as input file with argument 'c61,avi'.
Reading option '-c:a' ... matched as option 'c' (codec name) with argument 'aac'.
Reading option '-b:a' ... matched as option 'b' (video bitrate (please use -b:v)) with argument '128k'.
Reading option '-ac' ... matched as option 'ac' (set number of audio channels) with argument '2'.
Reading option '-threads' ... matched as AVOption 'threads' with argument '12'.
Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'copy'.
Reading option '-map' ... matched as option 'map' (set input stream mapping) with argument '0:0'.
Reading option '-map' ... matched as option 'map' (set input stream mapping) with argument '0:1'.
Reading option '-c:s' ... matched as option 'c' (codec name) with argument 'copy'.
Reading option '-strict' ... matched as AVOption 'strict' with argument 'experimental'.
Reading option 'c61.mkv' ... matched as output file.
Reading option '-v' ... matched as option 'v' (set logging level) with argument 'debug'.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option y (overwrite output files) with argument 1.
Applying option v (set logging level) with argument debug.
Successfully parsed a group of options.
Parsing a group of options: input file c61,avi.
Successfully parsed a group of options.
Opening an input file: c61,avi.
[avi @ 0x254bb80] Format avi probed with size=2048 and score=100
[avi @ 0x254c120] use odml:1
[avi @ 0x254bb80] File position before avformat_find_stream_info() is 65536
[avi @ 0x254bb80] first_dts 0 not matching first dts 3584 in the queue
[avi @ 0x254bb80] first_dts 0 not matching first dts 7168 in the queue
[mpeg4 @ 0x254c540] Invalid and inefficient vfw-avi packed B frames detected
[avi @ 0x254bb80] All info found
[avi @ 0x254bb80] File position after avformat_find_stream_info() is 78764
Input #0, avi, from 'c61,avi':
Metadata:
encoder : AVI-Mux GUI 1.17.7, Aug 8 2006 20:59:17
JUNK :
Duration: 01:42:42.12, start: 0.000000, bitrate: 2049 kb/s
Stream #0:0, 1, 104271/2500000: Video: mpeg4 (Advanced Simple Profile) (XVID / 0x44495658), yuv420p, 720x304 [SAR 1:1 DAR 45:19], 911/21845, 23.98 tbr, 23.98 tbn, 23.98 tbc
Stream #0:1, 6, 1/56000: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, 5.1(side), fltp, 448 kb/s
Metadata:
title : c61
Successfully opened the file.
Parsing a group of options: output file c61.mkv.
Applying option c:a (codec name) with argument aac.
Applying option b:a (video bitrate (please use -b:v)) with argument 128k.
Applying option ac (set number of audio channels) with argument 2.
Applying option c:v (codec name) with argument copy.
Applying option map (set input stream mapping) with argument 0:0.
Applying option map (set input stream mapping) with argument 0:1.
Applying option c:s (codec name) with argument copy.
Successfully parsed a group of options.
Opening an output file: c61.mkv.
Successfully opened the file.
detected 8 logical cores
[graph 0 input from stream 0:1 @ 0x2552380] Setting 'time_base' to value '1/48000'
[graph 0 input from stream 0:1 @ 0x2552380] Setting 'sample_rate' to value '48000'
[graph 0 input from stream 0:1 @ 0x2552380] Setting 'sample_fmt' to value 'fltp'
[graph 0 input from stream 0:1 @ 0x2552380] Setting 'channel_layout' to value '0x60f'
[graph 0 input from stream 0:1 @ 0x2552380] tb:1/48000 samplefmt:fltp samplerate:48000 chlayout:0x60f
[audio format for output stream 0:1 @ 0x2583520] Setting 'sample_fmts' to value 'fltp'
[audio format for output stream 0:1 @ 0x2583520] Setting 'sample_rates' to value '96000|88200|64000|48000|44100|32000|24000|22050|16000|12000|11025|8000|7350'
[audio format for output stream 0:1 @ 0x2583520] Setting 'channel_layouts' to value '0x3'
[audio format for output stream 0:1 @ 0x2583520] auto-inserting filter 'auto-inserted resampler 0' between the filter 'Parsed_anull_0' and the filter 'audio format for output stream 0:1'
[AVFilterGraph @ 0x2580d00] query_formats: 4 queried, 9 merged, 3 already done, 0 delayed
1.000000 0.000000 0.707107 0.000000 0.707107 0.000000
0.000000 1.000000 0.707107 0.000000 0.000000 0.707107
[auto-inserted resampler 0 @ 0x2544680] ch:6 chl:5.1(side) fmt:fltp r:48000Hz -> ch:2 chl:stereo fmt:fltp r:48000Hz
Output #0, matroska, to 'c61.mkv':
Metadata:
JUNK :
encoder : Lavf55.12.100
Stream #0:0, 0, 1/1000: Video: mpeg4 (XVID / 0x44495658), yuv420p, 720x304 [SAR 1:1 DAR 45:19], 104271/2500000, q=2-31, 1k tbn, 23.98 tbc
Stream #0:1, 0, 1/1000: Audio: aac ([255][0][0][0] / 0x00FF), 48000 Hz, stereo, fltp, 128 kb/s
Metadata:
title : c61
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (ac3 -> aac)
Press [q] to stop, [?] for help
[matroska @ 0x25524c0] Writing block at offset 728, size 34, pts 0, dts 0, duration 21, flags 128
[matroska @ 0x25524c0] Can't write packet with unknown timestamp
av_interleaved_write_frame(): Invalid argument
[AVIOContext @ 0x25808a0] Statistics: 0 seeks, 2 writeouts
[AVIOContext @ 0x2554180] Statistics: 3211616 bytes read, 49 seeks
Thanks,
Mike
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