November 2013 - ffmpeg-user - lists.ffmpeg.org

Output file empty when processing mp4 - Invalid data found when processing input
by Peter Wood 26 Feb '15

26 Feb '15

Hi Folks, I'm trying to resize an mp4 file using ffmpeg, but the output file comes out empty. I see the following messages just before the command finishes: Truncating packet of size 103333 to 101557 time=00:00:06.10 bitrate= 585.7kbits/s [h264 @ 0x20646aa0] AVC: nal size 103329 Last message repeated 1 times [h264 @ 0x20646aa0] no frame! [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1ff19240] stream 0, offset 0x200ed8: partial file /data/sftp/video/temp/video_promo/764556_4_p.mp4: Invalid data found when processing input Any pointers on how to track down what's causing this? You can see the full output of the command below, followed by the output of ffprobe. The only alterations are a few pieces of sensitive data that I've removed which shouldn't have any bearing on diagnosing the issue. Thanks, Peter ffmpeg version N-45171-gae77266-syslint Copyright (c) 2000-2012 the FFmpeg developers built on Oct 8 2012 14:14:21 with gcc 4.1.2 (GCC) 20080704 (Red Hat 4.1.2-52) configuration: --prefix=/usr/local/cpffmpeg --enable-shared --enable-nonfree --enable-gpl --enable-pthreads --enable-libopencore-amrnb --enable-decoder=liba52 --enable-libopencore-amrwb --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --extra-cflags=-I/usr/local/cpffmpeg/include/ --extra-ldflags=-L/usr/local/cpffmpeg/lib --enable-version3 --extra-version=syslint libavutil 51. 74.100 / 51. 74.100 libavcodec 54. 65.100 / 54. 65.100 libavformat 54. 30.100 / 54. 30.100 libavdevice 54. 3.100 / 54. 3.100 libavfilter 3. 19.102 / 3. 19.102 libswscale 2. 1.101 / 2. 1.101 libswresample 0. 16.100 / 0. 16.100 libpostproc 52. 1.100 / 52. 1.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '764556_4_p.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isommp42 creation_time : 2013-01-10 18:15:24 title : xxxx Duration: 00:09:10.95, start: 0.000000, bitrate: 30 kb/s Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x704, 1895 kb/s, 29.97 fps, 29.97 tbr, 60k tbn, 59.94 tbc Metadata: creation_time : 1970-01-01 00:00:00 handler_name : VideoHandler Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 192 kb/s Metadata: creation_time : 2013-01-10 18:15:24 handler_name : IsoMedia File Produced by Google, 5-11-2011 [libx264 @ 0x1ff16720] using cpu capabilities: none! [libx264 @ 0x1ff16720] profile Main, level 3.0 [libx264 @ 0x1ff16720] 264 - core 128 r2216 198a7ea - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x1:0 me=dia subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=2 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=512 ratetol=1.0 qcomp=0.60 qpmin=10 qpmax=51 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to '764556_4_P_temp.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isommp42 title : xxxxxx encoder : Lavf54.30.100 Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 720x406, q=10-51, pass 1, 512 kb/s, 30k tbn, 29.97 tbc Metadata: creation_time : 1970-01-01 00:00:00 handler_name : VideoHandler Stream mapping: Stream #0:0 -> #0:0 (h264 -> libx264) Press [q] to stop, [?] for help Truncating packet of size 103333 to 101557 time=00:00:06.10 bitrate= 585.7kbits/s [h264 @ 0x20646aa0] AVC: nal size 103329 Last message repeated 1 times [h264 @ 0x20646aa0] no frame! [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1ff19240] stream 0, offset 0x200ed8: partial file 764556_4_p.mp4: Invalid data found when processing input frame= 270 fps= 79 q=-1.0 Lsize= 610kB time=00:00:08.94 bitrate= 558.8kbits/s video:606kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.616142% [libx264 @ 0x1ff16720] frame I:2 Avg QP:18.48 size: 52856 [libx264 @ 0x1ff16720] frame P:104 Avg QP:21.64 size: 4429 [libx264 @ 0x1ff16720] frame B:164 Avg QP:26.99 size: 328 [libx264 @ 0x1ff16720] consecutive B-frames: 16.7% 2.2% 14.4% 66.7% [libx264 @ 0x1ff16720] mb I I16..4: 52.4% 0.0% 47.6% [libx264 @ 0x1ff16720] mb P I16..4: 0.8% 0.0% 0.0% P16..4: 27.9% 0.0% 0.0% 0.0% 0.0% skip:71.4% [libx264 @ 0x1ff16720] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 4.4% 0.0% 0.0% direct: 2.1% skip:93.5% L0:18.8% L1:34.6% BI:46.5% [libx264 @ 0x1ff16720] final ratefactor: 20.43 [libx264 @ 0x1ff16720] coded y,uvDC,uvAC intra: 41.6% 48.0% 43.9% inter: 6.3% 6.9% 2.7% [libx264 @ 0x1ff16720] i16 v,h,dc,p: 68% 24% 7% 2% [libx264 @ 0x1ff16720] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 26% 10% 3% 8% 6% 5% 7% 8% [libx264 @ 0x1ff16720] i8c dc,h,v,p: 54% 23% 18% 4% [libx264 @ 0x1ff16720] Weighted P-Frames: Y:11.5% UV:6.7% [libx264 @ 0x1ff16720] kb/s:550.62 FFprobe version 0.6.1, Copyright (c) 2007-2010 the FFmpeg developers built on Dec 4 2010 15:35:31 with gcc 4.1.2 20080704 (Red Hat 4.1.2-48) configuration: --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --extra-cflags='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC' --enable-avfilter --enable-avfilter-lavf --enable-libdirac --enable-libfaac --enable-libfaad --enable-libfaadbin --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab libavutil 50.15. 1 / 50.15. 1 libavcodec 52.72. 2 / 52.72. 2 libavformat 52.64. 2 / 52.64. 2 libavdevice 52. 2. 0 / 52. 2. 0 libavfilter 1.19. 0 / 1.19. 0 libswscale 0.11. 0 / 0.11. 0 libpostproc 51. 2. 0 / 51. 2. 0 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '764556_4_p.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isommp42 title : xxxxxxx Duration: 00:09:10.95, start: 0.000000, bitrate: 30 kb/s Stream #0.0(und): Video: h264, yuv420p, 1280x704, 1895 kb/s, 29.97 fps, 29.97 tbr, 60k tbn, 59.94 tbc Stream #0.1(und): Audio: aac, 44100 Hz, stereo, s16, 192 kb/s

4 3

IVTC with pullup filter
by Elliott Balsley 12 Feb '15

12 Feb '15

I have a source video that's 29.97 with 3:2 pulldown, and I want to encode it at 23.98p. This ffmpeg command produces video at 23.98, but with a pattern of 2 progressive frames followed by 2 interlaced frames. ffmpeg -ss 208 -i NCIS.ts -t 30 -vf "pullup,fps=24000/1001" -acodec copy -vcodec libx264 pullup.mkv On the other hand, I can achieve perfect results with this simple AviSynth script: MPEG2Source("NCIS.d2v", cpu=0) TFM().TDecimate() Trim(5000,5300) Since AviSynth isn't doing any deinterlacing, I don't think I should need to add yadif in ffmpeg. How can I make the pullup filter work correctly?

6 21

Use build_libstagefright in ffmpeg to build file .so for android
by hsu tom 26 Nov '14

26 Nov '14

In order to use ffmpeg in android , I tried to build ffmpeg by using build_libstagefright in ffmpeg/tools/lib_stagefright but it alwalys appear a error which i coundn't solve it. the message in the bottom of ffmpeg/config.log is arm-linux-androideabi-g++ -D_ISOC99_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -DPIC -I../android-source/frameworks/base/include -I../android-source/system/core/include -I../android-source/frameworks/base/media/libstagefright -I../android-source/frameworks/base/include/media/stagefright/openmax -I/home/user/android-ndk/sources/cxx-stl/gnu-libstdc++/include -I/home/user/android-ndk/sources/cxx-stl/gnu-libstdc++/libs/armeabi-v7a/include -march=armv7-a -mfloat-abi=softfp -mfpu=neon -march=armv7-a -std=c99 -fomit-frame-pointer -fPIC -marm -Wno-multichar -fno-exceptions -fno-rtti -D__STDC_CONSTANT_MACROS -c -o /tmp/ffconf.6ZzEMs87.o /tmp/ffconf.5jbfvJxK.cpp ./configure: line 701: /home/user/android-ndk/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-g++: cannot execute binary file ERROR: libstagefright_h264 not found my Build Environment is 1. Window 7 2. Cygwin 3. android-NDK-r8b linux version Tom

4 6

DVCPRO50 PAL decoding oddity - light line in top row
by Sal Kennedy 26 Oct '14

26 Oct '14

hey all. first up please spare the flames as i'm not a regular newsgroup user and have come very late to this kind of forum. i've been following ffmpeg git rather religiously - following github on my RSS reader etc. hence i'm running the current git version. anyway, i have what appears to be a long standing decode bug with dvvideo. as DVCPRO50 is not commonly used, it's no surprise. depending on possibly brightness and complexity of the top row of macroblocks, i get a sort of horizontal line. it's only the top row, but it's quite visible in the right conditions. i can upload a sample if need be - i was hoping to be able to generate a lightweight file that demonstrates this, but artificial signals haven't reproduced this issue so i just clipped a bit out of a master file. may the copyright gods forgive me... i also have x264 proxies that reflect the problem - one encoded out of premiere pro, showing how it should look, and one encoded straight from the DVCPRO50 source that shows the problem. i've read the bug submitting advice, however any command line will reproduce this so long as it has dv5p as a source. thanks! -sal

3 2

Brighten dark video before reducing size?
by Gilles 06 Oct '14

06 Oct '14

Hello Using a basic Sony camcorder, I recorded a two-hour conference whose picture is a bit dark. I tried applying a filter in AviDemux and saving the file, but for some reason, there's no sound when played in VLC :-/ Before trying other NLE applications (VirtualDub, Sony Vegas, etc.), I was wondering if ffmpeg could apply some filters before further reducing the filesize? FWIW... 1. here's what the original file looks like: Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:1[0x80]: Audio: ac3, 48000 Hz, 5.1(side), s16, 448 kb/s 2. Using the following command, ffmpeg reduces the original 9GB to 340MB: ffmpeg -i input.mpg -c:v libx264 -vf scale=iw/2:-1 -preset faster -c:a ac3 -ab 192k output.mp4 Thank you.

2 7

ffmpeg x11grab on Mac 10.8.2
by motty cruz 03 Aug '14

03 Aug '14

Hello I'm having difficouties install ffmpeg with x11grab, I get the following error: ERROR: X11 not found it:ffmpeg admin$ ./configure --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-pthreads --enable-libfaa c --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libx264 --enable-libxvid --enable-x11grab --enable-libvorbis ERROR: X11 not found If you think configure made a mistake, make sure you are using the latest version from Git. If the latest version fails, report the problem to the ffmpeg-user(a)ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net. Include the log file "config.log" produced by configure as this will help solving the problem I confirm that I have X11 install: it:~ admin$ locate Xlib.h /System/Library/Frameworks/Tk.framework/Versions/8.4/Headers/X11/Xlib.h /System/Library/Frameworks/Tk.framework/Versions/8.5/Headers/X11/Xlib.h it:~ admin$ Please help me!!!

3 3

Re: [FFmpeg-user] Problem trying to convert PAL file to NTSC
by vsethi＠iglou.com 30 Jun '14

30 Jun '14

belcampo wrote: > You need to specify -sn on your command line, to disable the > subtitle-part in the source. > What you seem to have AFAIK is a MPEG2-TS container, broadcast, with > 1 video > 1 subtitle > 4 audio-streams. > ffmpeg AFAIK doesn't know how to handle the subtitle stream. You'll have > to explicitedly disable it with the -sn parameter. > If you would like to have another audiostream then the first one, you'll > have to use the map functions. > For video + 2nd audio stream you would need: > ffmpeg -i source.mpg copy or encode parameters -map 0:0 -map 0:3 > destination.mpg Thanks for your help. I've continued to play with this, without success. I've specified not only -sn, as you suggest, but also -an as a test to keep the audio streams from interfering. ffmpeg accepts this command line but, unfortunately, it's crashing with an illegal instruction error and generates only an empty output file. I am wondering if any of the following needs to be addressed: 1. max_analyze_duration reached 2. stream 0 codec frame rate differs from container frame rate 3. bitrate: -2147483 kb/s This is what it is doing now: ========================================================================== ffmpeg -f mpeg -i image.mpg -sn -an -target ntsc-dvd image.out FFmpeg version git-31ff9bd, Copyright (c) 2000-2011 the FFmpeg developers built on Mar 12 2011 11:21:15 with gcc 4.1.2 configuration: libavutil 50. 39. 0 / 50. 39. 0 libavcodec 52.113. 2 / 52.113. 2 libavformat 52.102. 0 / 52.102. 0 libavdevice 52. 2. 3 / 52. 2. 3 libavfilter 1. 76. 0 / 1. 76. 0 libswscale 0. 12. 0 / 0. 12. 0 [mpeg @ 0x8b8f600] max_analyze_duration reached [mpeg @ 0x8b8f600] Further flags set but no bytes left Last message repeated 1 times Last message repeated 2 times Last message repeated 3 times Seems stream 0 codec frame rate differs from container frame rate: 50.00 (50/1) -> 5000.00 (5000/1) Last message repeated 3 times Input #0, mpeg, from 'image.mpg': Duration: 00:00:02.73, start: 0.066600, bitrate: -2147483 kb/s Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x576 [PAR 16:15 DAR 4:3], 9282 kb/s, 25 fps, 5k tbr, 90k tbn, 50 tbc Stream #0.1[0x20]: Subtitle: dvdsub Stream #0.2[0x80]: Audio: ac3, 48000 Hz, stereo, s16, 384 kb/s Stream #0.3[0x1ce]: Audio: mp2, 0 channels Stream #0.4[0x1d1]: Audio: mp2, 0 channels Stream #0.5[0x1d7]: Audio: mp2, 0 channels [buffer @ 0x8ba2bd0] w:720 h:576 pixfmt:yuv420p [scale @ 0x8ba2f90] w:720 h:576 fmt:yuv420p -> w:720 h:480 fmt:yuv420p flags:0xa0000004 Output #0, dvd, to 'image.out': Metadata: encoder : Lavf52.102.0 Stream #0.0: Video: mpeg2video, yuv420p, 720x480 [PAR 8:9 DAR 4:3], q=2-31, 6000 kb/s, 90k tbn, 29.97 tbc Stream mapping: Stream #0.0 -> #0.0 Press [q] to stop encoding frame= 0 fps= 0 q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s Illegal instruction

3 2

axis mpeg4 stream w/ aac audio
by danielp＠choma.hu 30 May '14

30 May '14

Hello, i've an Axis 247s video server which provides mpeg4 stream w/ aac audio, and i would like to get an flv stream from this. i've compiled ffmpeg/ffserver with --enable-libmp3lame --enable- shared --enable-libamr-nb --enable-nonfree --enable-gpl --enable- libfaad --enable-libfaac i can get the stream work with ffserver without audio, but not with audio. my ffserver.conf: Port 8090 BindAddress 0.0.0.0 MaxClients 1000 MaxBandwidth 1000 CustomLog - NoDaemon <Feed feed1.ffm> File /tmp/feed1.ffm FileMaxSize 1G ACL allow 127.0.0.1 </Feed> <Stream test.flv> # the source feed Feed feed1.ffm # the output stream format - FLV = FLash Video Format flv VideoCodec flv # this must match the ffmpeg -r argument VideoFrameRate 25 # generally leave this is a large number VideoBufferSize 80000 # another quality tweak VideoBitRate 500 # quality ranges - 1-31 (1 = best, 31 = worst) VideoQMin 1 VideoQMax 5 VideoSize 640x480 # this sets how many seconds in past to start PreRoll 0 AudioBitRate 64 AudioChannels 1 AudioSampleRate 44100 AudioCodec mp3 </Stream> i've tried several things like: openRTSP -b 80000 -y -c -4 -f 25 -w 640 -h 480 -t rtsp://xxx.hu:554/mpeg4/1/media.amp | \ ffmpeg -v 9 -vcodec mpeg4 -acodec mpeg4aac -ab 32k -i - -acodec libmp3lame -ar 44100 -ab 64k -ac 1 -vcodec mpeg4 http://localhost:8090/ or: mencoder \ -rtsp-stream-over-tcp rtsp://xxx.hu:554/mpeg4/1/media.amp \ -ovc lavc -lavcopts vcodec=mpeg4:vbitrate=500:mbd=2:mv0:trell:v4mv:cbp:last_pred=3 \ -oac mp3lame -lameopts abr:br=64:q=1:mode=3 \ -o - | \ ffmpeg \ -ab 32 -acodec mp3 -ar 44100 -ac 1 -f mpeg -r 25 -i - \ -r 25 -ab 32 -acodec mp3 -ar 44100 -ac 1 http://localhost:8090/ and tons of switches, but nothing worked. can you please help me somehow? thx, -- dp

2 1

converting to non HD avi with ffmpeg
by Kevin Wilson 12 Apr '14

12 Apr '14

Hi, I have downloaded from the web a video file with webm extension: ubunutuArm.webm (some lecture in video) Now, I converted it to avi thus: ffmpeg -i ubunutuArm.webm ubunutuArm.avi and put the ubunutuArm.avi on disk On Key. When trying to view it on TV with a DVD I see this messsage: "HD is not supported". Indeed, HD is not supported in my DVD and TV. Is there a way I can convert this video file with ffmpeg to an AVI so the result will be non HD ? (Second question: given some avi file, is there a way I can know whether it is in HD or not ?) Regards, Kevin

6 11

Is mixing of audio channels happening by default in ffmpeg?
by Sam Marrocco 21 Mar '14

21 Mar '14

I have an uncompressed Quicktime with 8 tracks of audio (in addition to it's one video and one Timecode track). I am transcoding it to Quicktime Prores with the following command line (and results): "ffmpeg-20130507-git-399f6ef-win64-static\bin\ffmpeg.exe" -i "C:\Users\root\Desktop\MultiChannel.mov" -vcodec prores_ks -pix_fmt yuv444p10le -profile:v 3 -acodec copy -t 1 -f mov "D:\\MultiChannel\MultiChannel.mov" ffmpeg version N-52837-g399f6ef Copyright (c) 2000-2013 the FFmpeg developers built on May 7 2013 01:14:14 with gcc 4.7.3 (GCC) configuration: --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. 29.100 / 52. 29.100 libavcodec 55. 7.100 / 55. 7.100 libavformat 55. 4.101 / 55. 4.101 libavdevice 55. 0.100 / 55. 0.100 libavfilter 3. 63.101 / 3. 63.101 libswscale 2. 2.100 / 2. 2.100 libswresample 0. 17.102 / 0. 17.102 libpostproc 52. 3.100 / 52. 3.100 [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000239e760] Stream #1: not enough frames to estimate rate; consider increasing probesize [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000239e760] Stream #2: not enough frames to estimate rate; consider increasing probesize [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000239e760] Stream #3: not enough frames to estimate rate; consider increasing probesize [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000239e760] Stream #4: not enough frames to estimate rate; consider increasing probesize [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000239e760] Stream #5: not enough frames to estimate rate; consider increasing probesize [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000239e760] Stream #6: not enough frames to estimate rate; consider increasing probesize [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000239e760] Stream #7: not enough frames to estimate rate; consider increasing probesize [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000239e760] Stream #8: not enough frames to estimate rate; consider increasing probesize [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000239e760] Stream #9: not enough frames to estimate rate; consider increasing probesize Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Users\root\Desktop\MultiChannel.mov': Metadata: major_brand : qt minor_version : 537199360 compatible_brands: qt creation_time : 2013-07-17 21:37:47 Duration: 00:00:45.05, start: 0.000000, bitrate: 1199347 kb/s Stream #0:0(eng): Video: rawvideo (raw / 0x20776172), rgb24, 1920x1080, 1193199 kb/s, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 239760 tbn, 239760 tbc Metadata: creation_time : 2013-07-17 21:37:47 handler_name : Apple Alias Data Handler timecode : 00:59:45:00 Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s Metadata: creation_time : 2013-07-17 21:40:27 handler_name : Apple Alias Data Handler Stream #0:2(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s Metadata: creation_time : 2013-07-17 21:40:28 handler_name : Apple Alias Data Handler Stream #0:3(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s Metadata: creation_time : 2013-07-17 21:40:28 handler_name : Apple Alias Data Handler Stream #0:4(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s Metadata: creation_time : 2013-07-17 21:40:29 handler_name : Apple Alias Data Handler Stream #0:5(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s Metadata: creation_time : 2013-07-17 21:40:30 handler_name : Apple Alias Data Handler Stream #0:6(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s Metadata: creation_time : 2013-07-17 21:40:30 handler_name : Apple Alias Data Handler Stream #0:7(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s Metadata: creation_time : 2013-07-17 21:40:31 handler_name : Apple Alias Data Handler Stream #0:8(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s Metadata: creation_time : 2013-07-17 21:40:31 handler_name : Apple Alias Data Handler Stream #0:9(eng): Data: none (tmcd / 0x64636D74) Metadata: creation_time : 2013-07-17 21:40:32 handler_name : Apple Alias Data Handler timecode : 00:59:45:00 Output #0, mov, to 'D:\\MultiChannel\MultiChannel.mov': Metadata: major_brand : qt minor_version : 537199360 compatible_brands: qt encoder : Lavf55.4.101 Stream #0:0(eng): Video: prores (prores_ks) (apch / 0x68637061), yuv444p10le, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 11988 tbn, 23.98 tbc Metadata: creation_time : 2013-07-17 21:37:47 handler_name : Apple Alias Data Handler timecode : 00:59:45:00 Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, 768 kb/s Metadata: creation_time : 2013-07-17 21:40:27 handler_name : Apple Alias Data Handler Stream mapping: Stream #0:0 -> #0:0 (rawvideo -> prores_ks) Stream #0:1 -> #0:1 (copy) Press [q] to stop, [?] for help frame= 24 fps=2.5 q=0.0 Lsize= 8082kB time=00:00:01.00 bitrate=66139.3kbits/s dup=276 drop=0 video:7986kB audio:94kB subtitle:0 global headers:0kB muxing overhead 0.024802% The resulting quicktime appears to contain a single audio track with the contents of original 8 tracks mixed together. I have not provided any audio filtering/mixing options. Wouldn't the default condition to be passing through of the audio tracks exactly as the source contains it? If not, is it possible to pass each track through as such or must it be explicitely told to do so? Ideally if provided with 8 tracks, the resulting file would have 8 tracks. -- sam marrocco | chief technical officer ringside.cutters.picnic.moonlink 248 548 2500 w 248 910 3344 c ringsidecreative.com <http://ringsidecreative.com/>

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