http://blog.gmane.org/gmane.comp.video.ffmpeg.user hourly 1 1901-01-01T00:00+00:00 http://gmane.org/img/gmane-25t.png http://gmane.org http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37264 <pre> Hi Sir we are broadcast live stream on rtmp server using ffmpeg. we faced problem in live stream. problam is that after encode livestream on rtmp server than after one hour audio and video out of sync in live stream . Please help us Thanks in advenced Regards Chandra kant </pre> chandra.panchal< at >zengatv.com 2012-05-26T08:12:47 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37259 <pre>Hi all, I use following command to get video from image ffmpeg -loop 1 -r 5 -i input.jpg -c:v libx264 -preset slow -tune stillimage -crf 24 -t 10 output.mp4 it is great for mp4 but when i use the following command to produce a MPG ffmpeg -loop 1 -r 5 -i ../images/001.jpg -tune stillimage -crf 24 -s -t 10 -r 29.97 output.mpg I always get a blurred video Can some one please help me Thanks in advance </pre> Murthy Avanithsa 2012-05-25T18:57:44 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37257 <pre>Greetings, I've been trying to use ffmpeg to do a mov to mov conversion (with different size and bitrate in the output, otherwise it'd be useless of course). However, the output file has some white frames at the end. Running ffmpeg -i on both the original file and the resulting file, so I can see the details of the codification, reveals that the latter is 0.03 seconds longer (pasting raw output below). By googling I found this (http://forums.creativecow.net/thread/291/681). But using the -shortest parameter doesn't change anything, same results. Could any of you, please, give me a clue or point me to a resource to diagnose the problem? Many thanks in advance. Here you have raw ffmpeg output: - Compile $ ffmpeg -y -shortest -i (input file).mov -ar 44100 -b 1500000 -f mov -r 25 -s 640x360 (output file).mov ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers built on Apr 25 2012 10:56:47 with gcc 4.4.5 configuration: --enable-version3 --enable-libvpx --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-shared --enable-gpl --enable-postproc --enable-nonfree --enable-avfilter --extra-cflags=-fPIC --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-pthreads libavutil 51. 35.100 / 51. 35.100 libavcodec 53. 61.100 / 53. 61.100 libavformat 53. 32.100 / 53. 32.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 61.100 / 2. 61.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 6.100 / 0. 6.100 libpostproc 52. 0.100 / 52. 0.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '(input file).mov': Metadata: major_brand : qt minor_version : 537199360 compatible_brands: qt creation_time : 2012-05-23 15:30:08 Duration: 00:00:33.96, start: 0.000000, bitrate: 89954 kb/s Stream #0:0(eng): Video: prores (apch / 0x68637061), yuv422p10le, 1280x720, 88398 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc Metadata: creation_time : 2012-05-23 15:30:08 handler_name : ?Apple Alias Data Handler Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, 2 channels, s16, 1536 kb/s Metadata: creation_time : 2012-05-23 15:30:08 handler_name : ?Apple Alias Data Handler Stream #0:2(eng): Data: none (tmcd / 0x64636D74) Metadata: creation_time : 2012-05-23 15:30:21 handler_name : ?Apple Alias Data Handler timecode : 01:01:21:21 Please use -b:a or -b:v, -b is ambiguous Incompatible pixel format 'yuv422p10le' for codec 'libx264', auto-selecting format 'yuv420p' [buffer &lt; at &gt; 0x96e8e0] w:1280 h:720 pixfmt:yuv422p10le tb:1/1000000 sar:1/1 sws_param: [scale &lt; at &gt; 0x96ef40] w:1280 h:720 fmt:yuv422p10le -&gt; w:640 h:360 fmt:yuv420p flags:0x4 [libx264 &lt; at &gt; 0x99bb80] using SAR=1/1 [libx264 &lt; at &gt; 0x99bb80] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.1 Cache64 [libx264 &lt; at &gt; 0x99bb80] profile High, level 3.0 [libx264 &lt; at &gt; 0x99bb80] 264 - core 122 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 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=1500 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mov, to '(output file).mov': Metadata: major_brand : qt minor_version : 537199360 compatible_brands: qt creation_time : 2012-05-23 15:30:08 encoder : Lavf53.32.100 Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], q=-1--1, 1500 kb/s, 25 tbn, 25 tbc Metadata: creation_time : 2012-05-23 15:30:08 handler_name : ?Apple Alias Data Handler Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, 2 channels, s16, 128 kb/s Metadata: creation_time : 2012-05-23 15:30:08 handler_name : ?Apple Alias Data Handler Stream mapping: Stream #0:0 -&gt; #0:0 (prores -&gt; libx264) Stream #0:1 -&gt; #0:1 (pcm_s16le -&gt; libfaac) Press [q] to stop, [?] for help frame= 849 fps= 30 q=16.0 Lsize= 5806kB time=00:00:33.88 bitrate=1404.0kbits/s video:5263kB audio:516kB global headers:0kB muxing overhead 0.487038% [libx264 &lt; at &gt; 0x99bb80] frame I:24 Avg QP:14.36 size: 34964 [libx264 &lt; at &gt; 0x99bb80] frame P:383 Avg QP:17.47 size: 10063 [libx264 &lt; at &gt; 0x99bb80] frame B:442 Avg QP:21.80 size: 1572 [libx264 &lt; at &gt; 0x99bb80] consecutive B-frames: 20.6% 25.9% 12.0% 41.5% [libx264 &lt; at &gt; 0x99bb80] mb I I16..4: 18.2% 58.0% 23.9% [libx264 &lt; at &gt; 0x99bb80] mb P I16..4: 1.4% 4.6% 2.0% P16..4: 33.9% 16.7% 11.5% 0.0% 0.0% skip:30.1% [libx264 &lt; at &gt; 0x99bb80] mb B I16..4: 0.0% 0.3% 0.1% B16..8: 20.9% 2.7% 1.1% direct: 2.5% skip:72.5% L0:34.6% L1:51.9% BI:13.5% [libx264 &lt; at &gt; 0x99bb80] final ratefactor: 15.13 [libx264 &lt; at &gt; 0x99bb80] 8x8 transform intra:58.1% inter:65.2% [libx264 &lt; at &gt; 0x99bb80] coded y,uvDC,uvAC intra: 83.9% 84.5% 66.2% inter: 19.4% 15.2% 5.4% [libx264 &lt; at &gt; 0x99bb80] i16 v,h,dc,p: 17% 12% 18% 53% [libx264 &lt; at &gt; 0x99bb80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 21% 28% 5% 6% 4% 8% 5% 9% [libx264 &lt; at &gt; 0x99bb80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 21% 19% 7% 7% 6% 8% 6% 9% [libx264 &lt; at &gt; 0x99bb80] i8c dc,h,v,p: 54% 26% 12% 8% [libx264 &lt; at &gt; 0x99bb80] Weighted P-Frames: Y:9.7% UV:5.2% [libx264 &lt; at &gt; 0x99bb80] ref P L0: 60.2% 13.8% 17.4% 7.6% 1.0% [libx264 &lt; at &gt; 0x99bb80] ref B L0: 84.4% 14.0% 1.6% [libx264 &lt; at &gt; 0x99bb80] ref B L1: 93.0% 7.0% [libx264 &lt; at &gt; 0x99bb80] kb/s:1269.30 - Input file Info $ ffmpeg -i (input file).mov ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers built on Apr 25 2012 10:56:47 with gcc 4.4.5 configuration: --enable-version3 --enable-libvpx --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-shared --enable-gpl --enable-postproc --enable-nonfree --enable-avfilter --extra-cflags=-fPIC --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-pthreads libavutil 51. 35.100 / 51. 35.100 libavcodec 53. 61.100 / 53. 61.100 libavformat 53. 32.100 / 53. 32.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 61.100 / 2. 61.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 6.100 / 0. 6.100 libpostproc 52. 0.100 / 52. 0.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '(input file)': Metadata: major_brand : qt minor_version : 537199360 compatible_brands: qt creation_time : 2012-05-23 15:30:08 Duration: 00:00:33.96, start: 0.000000, bitrate: 89954 kb/s Stream #0:0(eng): Video: prores (apch / 0x68637061), yuv422p10le, 1280x720, 88398 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 25 tbn, 25 tbc Metadata: creation_time : 2012-05-23 15:30:08 handler_name : ?Apple Alias Data Handler Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, 2 channels, s16, 1536 kb/s Metadata: creation_time : 2012-05-23 15:30:08 handler_name : ?Apple Alias Data Handler Stream #0:2(eng): Data: none (tmcd / 0x64636D74) Metadata: creation_time : 2012-05-23 15:30:21 handler_name : ?Apple Alias Data Handler timecode : 01:01:21:21 At least one output file must be specified - Output file info $ ffmpeg -i (output file).mov ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers built on Apr 25 2012 10:56:47 with gcc 4.4.5 configuration: --enable-version3 --enable-libvpx --enable-libfaac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-shared --enable-gpl --enable-postproc --enable-nonfree --enable-avfilter --extra-cflags=-fPIC --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-pthreads libavutil 51. 35.100 / 51. 35.100 libavcodec 53. 61.100 / 53. 61.100 libavformat 53. 32.100 / 53. 32.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 61.100 / 2. 61.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 6.100 / 0. 6.100 libpostproc 52. 0.100 / 52. 0.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '(output file).mov': Metadata: major_brand : qt minor_version : 512 compatible_brands: qt creation_time : 2012-05-23 15:30:08 encoder : Lavf53.32.100 Duration: 00:00:33.99, start: 0.000000, bitrate: 1399 kb/s Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 640x360 [SAR 1:1 DAR 16:9], 1269 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc Metadata: creation_time : 2012-05-23 15:30:08 handler_name : DataHandler Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 124 kb/s Metadata: creation_time : 2012-05-23 15:30:08 handler_name : DataHandler </pre> Jaume Lopez 2012-05-25T14:20:07 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37254 <pre>I have some streams in h264/aac and i have had to double the probesize value to get ffmpeg to recongise the audio/video correctly. As this is a MPEG-TS container and I know the values of the audio/video pids and their formats is there a way via the commandline to tell ffmpeg this info without going through the probing? joolz </pre> JULIAN GARDNER 2012-05-25T12:19:07 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37253 <pre>Hi Sir we are broadcast live stream on rtmp server using ffmpeg. we faced problem in live stream. problam is that after encode livestream on rtmp server than after one hour audio and video out of sync in live stream . Please help us Thanks in advenced Regards Chandra kant </pre> chandra.panchal< at >zengatv.com 2012-05-25T10:51:39 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37251 <pre>Hi, We are developing a video rendering app on Android using ffmpeg. The app crashes in avcodec_decode_video2 every now and then. We are releasing the decoder only once after it comes out of the rendering screen. Does the decoder need to be initialized every time the video is started and released every time the video is stopped? Thank you, B.Arunkumar </pre> Arunkumar 2012-05-25T07:12:01 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37249 <pre>Hi, I'm mixing audio for a movie on Ardour (an audio editing software), which can't export to AC3, but it can export multiple channels to other formats, e.g. FLAC. So I have it encoded in FLAC with 5.1 surround sound. I'd like to use ffmpeg to convert it to AC3 at 48kHz and 640kb/s with 5.1 surround (Dolby Digital). Here's what I have so far, but I'd like to change (or make sure it's correct) the channel layout. ffmpeg -i Session.flac -s:a 48k -ab 640k -acodec ac3 -ac 6 Session.ac3 Which returns ffmpeg version 0.10.3 Copyright (c) 2000-2012 the FFmpeg developers built on May 9 2012 17:51:07 with gcc 4.7.0 20120505 (prerelease) configuration: --prefix=/usr --enable-libmp3lame --enable-libvorbis --enable-libxvid --enable-libx264 --enable-libvpx --enable-libtheora --enable-libgsm --enable-libspeex --enable-postproc --enable-shared --enable-x11grab --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libschroedinger --enable-libopenjpeg --enable-librtmp --enable-libpulse --enable-gpl --enable-version3 --enable-runtime-cpudetect --disable-debug --disable-static libavutil 51. 35.100 / 51. 35.100 libavcodec 53. 61.100 / 53. 61.100 libavformat 53. 32.100 / 53. 32.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 61.100 / 2. 61.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 6.100 / 0. 6.100 libpostproc 52. 0.100 / 52. 0.100 [flac &lt; at &gt; 0x1c003a0] max_analyze_duration 5000000 reached at 5016000 Input #0, flac, from 'Session.flac': Duration: 00:00:14.00, bitrate: 1010 kb/s Stream #0:0: Audio: flac, 48000 Hz, 5.1, s32 Incompatible sample format 's32' for codec 'ac3', auto-selecting format 'flt' [ac3 &lt; at &gt; 0x1c07920] channel_layout not specified [ac3 &lt; at &gt; 0x1c07920] No channel layout specified. The encoder will guess the layout, but it might be incorrect. Output #0, ac3, to 'test.ac3': Metadata: encoder : Lavf53.32.100 Stream #0:0: Audio: ac3, 48000 Hz, 5.1(side), flt, 640 kb/s Stream mapping: Stream #0:0 -&gt; #0:0 (flac -&gt; ac3) Press [q] to stop, [?] for help size= 1095kB time=00:00:14.01 bitrate= 640.0kbits/s video:0kB audio:1095kB global headers:0kB muxing overhead 0.000000% That leads me to believe that it's using a channel layout of "5.1(side)" (maybe assuming the surround speakers are on the sides, rather than behind, as I want). Also, it automatically sets the sample format to "flt". Is this what I want, or how can I change it? Thank you! Chase </pre> Chase Patterson 2012-05-24T23:28:20 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37246 <pre>Hi; I want FFMPEG build my server. But I dont know. My server information is centos x64. How to install FFmpeg ? Can you help me ? Emrah BİLGİN Teknik Destek - Technical Support Adres : Nilüfer Ticaret Merkezi 633. Sk. No:13/3 Nilüfer / BURSA Tel : +90 (224) 443 60 60 Fax : +90 (224) 443 60 61 E-mail : emrah&lt; at &gt;vit.com.tr&lt;mailto:eyup&lt; at &gt;vit.com.tr&gt; Web : http://www.vit.com.tr&lt;http://www.vit.com.tr/&gt; [Açıklama: Açıklama: Açıklama: mail_imza] P Lütfen bu e-postanın çıktısını almadan önce doğaya etkisini düşünün P Please consider the environment before printing this email _______________________________________________ ffmpeg-user mailing list ffmpeg-user&lt; at &gt;ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user </pre> Emrah BİLGİN 2012-05-24T14:10:37 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37244 <pre>Hi Can you please help me in building ffmpeg for Android on Windows MiNGW. I am facing the below problem: AR libavcodec/libavcodec.a LD ffmpeg_g.exe LD ffplay_g.exe LD ffprobe_g.exe INSTALL libavcodec/libavcodec.a CP ffmpeg.exe STRIP ffmpeg.exe CP ffprobe.exe STRIP ffprobe.exe CP ffplay.exe STRIP ffplay.exe INSTALL install-progs-yes INSTALL ffmpeg.exe INSTALL ffplay.exe INSTALL ffprobe.exe d:\android-ndk-r8\toolchains\arm-linux-androideabi-4.4.3\prebuilt\windows\bin\ar m-linux-androideabi-ld.exe: cannot open output file ./android/armv7-a/libffmpeg. so: No such file or directory libavcodec/tscc.c:97:24: warning: assignment discards qualifiers from pointer ta rget type ./libavcodec/avcodec.h:40:0: fatal error: when writing output to : Invalid argum ent compilation terminated. libavcodec/vc1dsp.c: In function 'ff_vc1dsp_init': This is my build script: NDK=/d/android-ndk-r8 PLATFORM=$NDK/platforms/android-9/arch-arm/ PREBUILT=$NDK/toolchains/arm-linux-androideabi-4.4.3/prebuilt/windows function build_one_r6 { ./configure \ --disable-shared \ --enable-static \ --enable-gpl \ --enable-version3 \ --enable-nonfree \ --disable-doc \ --disable-ffmpeg \ --disable-ffplay \ --disable-ffprobe \ --disable-ffserver \ --disable-avdevice \ --disable-avfilter \ --disable-postproc \ --enable-small \ --cross-prefix=$PREBUILT/bin/arm-linux-androideabi- \ --enable-cross-compile \ --target-os=linux \ --extra-cflags="-I$PLATFORM/usr/include" \ --extra-ldflags="-L$PLATFORM/usr/lib -nostdlib" \ --arch=arm \ --disable-symver \ --disable-debug \ --disable-stripping \ $ADDITIONAL_CONFIGURE_FLAG sed -i 's/HAVE_LRINT 0/HAVE_LRINT 1/g' config.h sed -i 's/HAVE_LRINTF 0/HAVE_LRINTF 1/g' config.h sed -i 's/HAVE_ROUND 0/HAVE_ROUND 1/g' config.h sed -i 's/HAVE_ROUNDF 0/HAVE_ROUNDF 1/g' config.h sed -i 's/HAVE_TRUNC 0/HAVE_TRUNC 1/g' config.h sed -i 's/HAVE_TRUNCF 0/HAVE_TRUNCF 1/g' config.h make clean make -j4 install $PREBUILT/bin/arm-linux-androideabi-ar d libavcodec/libavcodec.a inverse.o $PREBUILT/bin/arm-linux-androideabi-ld -rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -soname libffmpeg.so -shared -nostdlib -z,noexecstack -Bsymbolic --whole-archive --no-undefined -o $PREFIX/libffmpeg.so libavcodec/libavcodec.a libavformat/libavformat.a libavutil/libavutil.a libswscale/libswscale.a -lc -lm -lz -ldl -llog --warn-once --dynamic-linker=/system/bin/linker $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/libgcc.a } CPU=armv7-a OPTIMIZE_CFLAGS="-mfloat-abi=softfp -mfpu=vfpv3-d16 -marm -march=$CPU " PREFIX=./android/$CPU ADDITIONAL_CONFIGURE_FLAG= Any idea what I'm missing here? Please note that I am able to build ffmpeg for Windows desktop successfully so I assume the setup is correct. </pre> Harish Pulimi 2012-05-23T09:05:28 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37243 <pre>Hi, Please, explain whats wrong with the duration detection: "12:08:10.44"? There are two outputs from the same video below: ffmpeg and MediaInfo. MediaInfo gives "1h 56mn" for the duration - its OK. Thanks in advance! -------- On server: ffmpeg -i video.flv 2&gt;&amp;1 ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers built on Apr 18 2012 10:24:03 with gcc 4.4.6 20110731 (Red Hat 4.4.6-3) configuration: --prefix=/usr/local/ffmpeg-0.10.2 --enable-shared --enable-pthreads --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-nonfree --enable-gpl --enable-libmp3lame --enable-libxvid --enable-libvorbis --enable-libfaac --enable-libx264 --enable-avfilter --enable-postproc --enable-version3 libavutil 51. 35.100 / 51. 35.100 libavcodec 53. 61.100 / 53. 61.100 libavformat 53. 32.100 / 53. 32.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 61.100 / 2. 61.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 6.100 / 0. 6.100 libpostproc 52. 0.100 / 52. 0.100 [flv &lt; at &gt; 0x228e3a0] Skiping duplicate index Input #0, flv, from '/farm-video/img_v/mp4/0014/41/00144178.flv': Metadata: videosize : 107014668 hasMetadata : true canSeekToEnd : true hasVideo : true hasCuePoints : false metadatacreator : Yet Another Metadata Injector for FLV - Version 1.8 hasAudio : true hasKeyframes : true lastkeyframetimestamp: 2734 lasttimestamp : 2734 audiosize : 23129491 datasize : 130836255 totalframes : 1092306 lastkeyframelocation: 130863506 Duration: 12:08:10.44, start: 0.040000, bitrate: 385 kb/s Stream #0:0: Video: h264 (High), yuv420p, 720x384 [SAR 1:1 DAR 15:8], 310 kb/s, 25 tbr, 1k tbn, 50 tbc Stream #0:1: Audio: mp3, 44100 Hz, mono, s16, 64 kb/s Local MEDIAINFO: General Complete name : D:\video.flv Format : Flash Video File size : 319 MiB Duration : 1h 56mn Overall bit rate : 384 Kbps Tagged date : UTC 2012-04-10 02:44:18 Tagging application : flvtool++ (Facebook, Motion project, dweatherford) / Yet Another Metadata Injector for FLV - Version 1.8 totalframes : 1092306.000 Video Format : AVC Format/Info : Advanced Video Codec Format profile : High&lt; at &gt;L3.0 Format settings, CABAC : Yes Format settings, ReFrames : 4 frames Codec ID : 7 Duration : 1h 56mn Bit rate : 295 Kbps Nominal bit rate : 312 Kbps Width : 720 pixels / 720 pixels Original width : 720 pixels Height : 384 pixels / 384 pixels Original height : 384 pixels Display aspect ratio : 1.875 Frame rate mode : Constant / CFR Frame rate : 25.000 fps / 25.001 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.043 Stream size : 246 MiB (77%) Writing library : x264 core 118 Encoding settings : cabac=1 / ref=2 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=36 / 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=50 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=30 / rc=abr / mbtree=1 / bitrate=312 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / ip_ratio=1.41 / aq=1:1.00 Audio Format : MPEG Audio Format version : Version 1 Format profile : Layer 3 Codec ID : 2 Codec ID/Hint : MP3 Duration : 1h 56mn Bit rate mode : Constant Bit rate : 64.0 Kbps Channel(s) : 1 channel Sampling rate : 44.1 KHz Compression mode : Lossy Delay relative to video : 40ms Stream size : 53.3 MiB (17%) Sincerely, Andrew Gora </pre> Andrew Gora 2012-05-23T06:27:30 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37242 <pre>Hi, Could somebody explain whats wrong with the duration detection: "12:08:10.44"? There are two outputs from the same video below: ffmpeg and MediaInfo. MediaInfo gives "1h 56mn" for the duration - its OK. Thanks in advance! -------- On server: ffmpeg -i video.flv 2&gt;&amp;1 ffmpeg version 0.10.2 Copyright (c) 2000-2012 the FFmpeg developers built on Apr 18 2012 10:24:03 with gcc 4.4.6 20110731 (Red Hat 4.4.6-3) configuration: --prefix=/usr/local/ffmpeg-0.10.2 --enable-shared --enable-pthreads --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-nonfree --enable-gpl --enable-libmp3lame --enable-libxvid --enable-libvorbis --enable-libfaac --enable-libx264 --enable-avfilter --enable-postproc --enable-version3 libavutil 51. 35.100 / 51. 35.100 libavcodec 53. 61.100 / 53. 61.100 libavformat 53. 32.100 / 53. 32.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 61.100 / 2. 61.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 6.100 / 0. 6.100 libpostproc 52. 0.100 / 52. 0.100 [flv &lt; at &gt; 0x228e3a0] Skiping duplicate index Input #0, flv, from '/farm-video/img_v/mp4/0014/41/00144178.flv': Metadata: videosize : 107014668 hasMetadata : true canSeekToEnd : true hasVideo : true hasCuePoints : false metadatacreator : Yet Another Metadata Injector for FLV - Version 1.8 hasAudio : true hasKeyframes : true lastkeyframetimestamp: 2734 lasttimestamp : 2734 audiosize : 23129491 datasize : 130836255 totalframes : 1092306 lastkeyframelocation: 130863506 Duration: 12:08:10.44, start: 0.040000, bitrate: 385 kb/s Stream #0:0: Video: h264 (High), yuv420p, 720x384 [SAR 1:1 DAR 15:8], 310 kb/s, 25 tbr, 1k tbn, 50 tbc Stream #0:1: Audio: mp3, 44100 Hz, mono, s16, 64 kb/s Local MEDIAINFO: General Complete name : D:\video.flv Format : Flash Video File size : 319 MiB Duration : 1h 56mn Overall bit rate : 384 Kbps Tagged date : UTC 2012-04-10 02:44:18 Tagging application : flvtool++ (Facebook, Motion project, dweatherford) / Yet Another Metadata Injector for FLV - Version 1.8 totalframes : 1092306.000 Video Format : AVC Format/Info : Advanced Video Codec Format profile : High&lt; at &gt;L3.0 Format settings, CABAC : Yes Format settings, ReFrames : 4 frames Codec ID : 7 Duration : 1h 56mn Bit rate : 295 Kbps Nominal bit rate : 312 Kbps Width : 720 pixels / 720 pixels Original width : 720 pixels Height : 384 pixels / 384 pixels Original height : 384 pixels Display aspect ratio : 1.875 Frame rate mode : Constant / CFR Frame rate : 25.000 fps / 25.001 fps Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Progressive Bits/(Pixel*Frame) : 0.043 Stream size : 246 MiB (77%) Writing library : x264 core 118 Encoding settings : cabac=1 / ref=2 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=36 / 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=50 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc_lookahead=30 / rc=abr / mbtree=1 / bitrate=312 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / ip_ratio=1.41 / aq=1:1.00 Audio Format : MPEG Audio Format version : Version 1 Format profile : Layer 3 Codec ID : 2 Codec ID/Hint : MP3 Duration : 1h 56mn Bit rate mode : Constant Bit rate : 64.0 Kbps Channel(s) : 1 channel Sampling rate : 44.1 KHz Compression mode : Lossy Delay relative to video : 40ms Stream size : 53.3 MiB (17%) Andrew Gora </pre> Andrew Gora 2012-05-21T19:49:44 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37241 <pre>Hello, maybe somebody of you can help me out! My problem is, i need to convert many movies as they come to either mp4 or flv to be able to stream(!) perfectly afterwards. I don`t know anything about the videos before they get to encoding, and the script should be run by Cronjob automatically. And now i am experimenting a lot with different FFMPEG settings to achieve this! The latest info i got was a HQ 2pass encoding technique-as i am not having the preset for HQ availiable i had to search for the whole shell command. These are the commands which should be done, but FFMPEG is stopping without a reason, and the output file has a size of 0 after finishing. I watched the process and have seen that the filesize goes up to the same size it would have when i just do the pass 1 and then back to zero and finishes: no output nothing. for info: if i do each command seperatly they work smoothly! $convert_call_pass_1 = $ffmpegPath . " -y -i " . $video_to_convert . " -r 30000/1001 -b 2M -bt 4M -vcodec libx264 -pass 1 -vpre fast_firstpass -an -passlogfile passlogs/passlog_ffmpeg " . $converted_video . " 2&gt;&amp;1"; $convert_call_pass_2 = $ffmpegPath . " -y -i " . $video_to_convert . " -r 24000/1001 -b 6144k -bt 8192k -vcodec libx264 -pass 2 -flags +loop -me_method umh -g 250 -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -bf 16 -b_strategy 1 -i_qfactor 0.71 -cmp +chroma -subq 8 -me_range 16 -coder 1 -sc_threshold 40 -flags2 +bpyramid+wpred+mixed_refs+dct8x8+fastpskip -keyint_min 25 -refs 4 -trellis 1 -directpred 3 -partitions +parti8x8+parti4x4+partp8x8+partb8x8 -an -passlogfile passlogs/passlog_ffmpeg " . $converted_video . " 2&gt;&amp;1"; exec($convert_call_pass_1, $output); exec($convert_call_pass_2, $output); What am i doing wrong? is it wrong to call both execs one after another? Is there a better solution for the problem with different incoming movies? mp4 encoding is not a must...could also be flv! Thanx in advance! Surekin -- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/FFmpeg-2-pass-libx264-encoding-with-php-possible-tp4647274.html Sent from the FFmpeg-users mailing list archive at Nabble.com. </pre> surekin 2012-05-20T21:18:59 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37231 <pre>Hi, I have tested libvo_aacenc as a redistributable aac encoder but recently noticed that there are audible quality differences compared to a better aac encoder even at rather high bit rates such as 192 or 256k. I doublechecked if it was the right encoder that was used as opposed to the internal one and the bitrate and both are correct. Am I the only one noticing this or has anyone else had quality problems with libvo_aacenc? Any special CL parameters I'm not seeing? Thanks in advance, Robert </pre> Robert Krüger 2012-05-24T16:01:48 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37230 <pre>Hi, I used ffmpeg to convert videos to WMV (in Linux) and then embed them in Powerpoint (in Windows) Since a couple of weeks, the conversion still succeeds, but when I embed them in Powerpoint, the WMV videos are not playing anymore and sometimes the computer freezes. Playing fine in VLC. Is anyone experiencing the same problem? I use the following syntax: /usr/local/bin/ffmpeg -i 'test.mp4' -vcodec wmv2 -acodec wmav2 -ac 2 -qmin 6 - qmax 8 -b:a 128k -ar 44100 -r 25 -nostats -y 'test.wmv' ffmpeg version N-40696-gb977779 Copyright (c) 2000-2012 the FFmpeg developers built on May 15 2012 14:26:38 with gcc 4.6.2 configuration: --enable-gpl --enable-version3 --enable-shared --enable- nonfree --enable-postproc --enable-libfaac --enable-libmp3lame --enable- libopencore-amrnb --enable-libopencore-amrwb --enable-libvorbis --enable- libtheora --enable-libvpx --enable-libspeex --enable-libxvid --enable-libx264 --disable-network --disable-stripping --enable-libschroedinger --enable-libgsm --enable-avfilter --enable-pthreads --disable-doc --disable-ffplay --disable- ffserver --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/lib --disable-protocol=httpproxy --enable-bzlib --enable-libvpx libavutil 51. 51.100 / 51. 51.100 libavcodec 54. 21.101 / 54. 21.101 libavformat 54. 5.100 / 54. 5.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 73.100 / 2. 73.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 11.100 / 0. 11.100 libpostproc 52. 0.100 / 52. 0.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 creation_time : 1970-01-01 00:00:00 encoder : Lavf53.3.1 Duration: 00:00:55.33, start: 0.000000, bitrate: 505 kb/s Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 432x320, 374 kb/s, 15 fps, 15 tbr, 15 tbn, 30 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, 127 kb/s Metadata: creation_time : 1970-01-01 00:00:00 handler_name : SoundHandler [buffer &lt; at &gt; 0x652520] w:432 h:320 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:flags=2 [buffersink &lt; at &gt; 0x634380] No opaque field provided Output #0, asf, to 'test.wmv': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 creation_time : 1970-01-01 00:00:00 WM/EncodingSettings: Lavf54.5.100 Stream #0:0(und): Video: wmv2 (WMV2 / 0x32564D57), yuv420p, 432x320, q=6-8, 200 kb/s, 1k tbn, 25 tbc Metadata: creation_time : 1970-01-01 00:00:00 handler_name : VideoHandler Stream #0:1(und): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, stereo, s16, 127 kb/s Metadata: creation_time : 1970-01-01 00:00:00 handler_name : SoundHandler Stream mapping: Stream #0:0 -&gt; #0:0 (h264 -&gt; wmv2) Stream #0:1 -&gt; #0:1 (aac -&gt; wmav2) Press [q] to stop, [?] for help frame= 1383 fps=578 q=2.0 Lsize= 2733kB time=00:00:55.21 bitrate= 405.4kbits/s dup=553 drop=0 video:1691kB audio:863kB global headers:0kB muxing overhead 6.960113% </pre> Juan Garrido 2012-05-24T15:59:00 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37223 <pre>Hi, I am testing using FFV1 encoding and have some questions on use. When encoding to &gt;8 bit (like ffmpeg v210.mov -c:v ffv1 ffv1.mov) I get this warning: [ffv1 &lt; at &gt; 0x7f83a1850a00] bits_per_raw_sample of more than 8 needs -coder 1 currently Could -coder 1 be the default in circumstances like this? Is there a disadvantage to using -coder 1? In other cases ffmpeg will provide an error and no output when the user needs to provide more information to make a decision about the encoding. In this case there doesn't seem to be any significant decisions to be made, the user just has to add -coder 1. With FFV1 version 3 specifically, when I run a command like this: ffmpeg -y -f lavfi -i testsrc=duration=5 -c:v ffv1 -level 3 -strict experimental out.mov I get the error: [ffv1 &lt; at &gt; 0x7fd879850a00] Unsupported number 0 of slices requested, please specify a supported number with -slices (ex:4,6,9,12,16, ...) If I specify slices manually, -slices 4, then the encode will work. To make this simply could ffv1 version 1.3 use a default number of slices but still provide the option for tweaks. Dave Rice </pre> Dave Rice 2012-05-24T14:43:11 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37221 <pre>Looking for a ffmpeg developer in Toronto GTA, please send your inquiries to mediastream &lt; at &gt; gmail Thanks. Dennis. </pre> Dennis 2012-05-24T13:50:57 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37214 <pre>Hi all, I am using ffmpeg to generate video from sequence of images "ffmpeg -i images%d output.mpg" How do i add time of each image to be displayed say example(10 sec each image) Thank you. </pre> Murthy Avanithsa 2012-05-24T12:41:47 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37207 <pre>Hi, I am using the latest FFmpeg version in my CQ5 to play videos. This is been used in UNIX server. The video gets played properly, but I don't get the preview image (thumbnail) for few videos. The one video which shows the thumbnail has the same renditions as that of the other which doesn't show a thumbnail. Here both videos are of .wmv format. Why is the thumbnail not shown for few videos? Below are the list of files that are created inside the renditions folder for both set of videos Cq5dam.thumbnail.140.100.png Cq5dam.thumbnail.319.319.png Cq5dam.thumbnail.48.48.png Cq5dam.video.firefoxhq.ogg cq5dam.video.flv.320.240.flv cq5dam.video.hq.m4v original Thanks and regards, Sujith. **************** CAUTION - Disclaimer ***************** This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely for the use of the addressee(s). If you are not the intended recipient, please notify the sender by e-mail and delete the original message. Further, you are not to copy, disclose, or distribute this e-mail or its contents to any other person and any such actions are unlawful. This e-mail may contain viruses. Infosys has taken every reasonable precaution to minimize this risk, but is not liable for any damage you may sustain as a result of any virus in this e-mail. You should carry out your own virus checks before opening the e-mail or attachment. Infosys reserves the right to monitor and review the content of all messages sent to or from this e-mail address. Messages sent to or from this e-mail address may be stored on the Infosys e-mail system. ***INFOSYS******** End of Disclaimer ********INFOSYS*** </pre> Sujith Chandran 2012-05-24T08:54:45 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37204 <pre>Hi, I have a question regarding the use of h264 in a Debian server. My server provider told me that libx264 is not stable in Debian, so instead they've installed h264. As far as I'm concerned, libx264 and h264 are the same, am I wrong? The following command that it worked perfectly in a Freebsd server, it's not working on a Debian one. They say that I should use another codec that is not h264 although it's installed (?), so I feel they are confused. So what's the correct way to declare -vcodec libx264 in Debian then? $output=runExternal($ffmpeg_path."ffmpeg -y -r 7 -i ".$servpath."img%d.jpg -r 7 -b 1000K -vcodec libx264 -flags +loop -me_method hex -g 250 -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -bf 3 -b_strategy 1 -i_qfactor 0.71 -cmp +chroma -subq 8 -me_range 16 -coder 1 -sc_threshold 40 -flags2 +bpyramid+wpred+mixed_refs+dct8x8+fastpskip -keyint_min 25 -refs 3 -trellis 1 -directpred 1 -partitions -parti8x8-parti4x4-partp8x8-partp4x4-partb8x8 -threads 0 -y ".$servpath."video.mp4 Thanks! Joana. </pre> Joana Moll 2012-05-24T08:29:20 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37193 <pre>Hello, I'd like to get te codec being used by an avi file. I thought it was with the -i option, but it wasn't i used this option with twi .AVI that have different codec and I don't see the difference. Thanks Rossana </pre> Rossana Guerra 2012-05-24T07:01:40 http://comments.gmane.org/gmane.comp.video.ffmpeg.user/37174 <pre>I'm trying to remove all metadata from a MOV file I have. For earlier (?) versions of FFmpeg, the map_metadata -1 switch should have stripped all metadata, but it doesn't appear to do so anymore. The metadata record has gone down from ~80 lines to about 50, but still things like creation_time etc. are preserved. According to this post &lt;http://askubuntu.com/a/139581&gt; even these timestamps should be deleted, but this used an ancient FFmpeg version. So, how can I remove as many metadata entries as possible? Best regards, Werner Robitza ############################################### This is the command used, and full output below: ffmpeg -i in.mov -map_metadata -1 -c:v copy -c:a copy out.mov ffmpeg version 0.10.3 Copyright (c) 2000-2012 the FFmpeg developers built on May 14 2012 23:40:56 with gcc 4.2.1 (Apple Inc. build 5666) (dot 3) configuration: --prefix=/usr/local/Cellar/ffmpeg/0.10.3 --enable-shared --enable-gpl --enable-version3 --enable-nonfree --enable-hardcoded-tables --enable-libfreetype --cc=/usr/bin/gcc-4.2 --enable-libx264 --enable-libfaac --enable-libmp3lame --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libass --disable-ffplay libavutil 51. 35.100 / 51. 35.100 libavcodec 53. 61.100 / 53. 61.100 libavformat 53. 32.100 / 53. 32.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 61.100 / 2. 61.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 6.100 / 0. 6.100 libpostproc 52. 0.100 / 52. 0.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'in.mov': Metadata: major_brand : qt minor_version : 537199360 compatible_brands: qt creation_time : 2009-05-20 12:36:37 Duration: 00:00:25.06, start: 0.875828, bitrate: 1076 kb/s Stream #0:0(eng): Video: mpeg4 (Advanced Simple Profile) (mp4v / 0x7634706D), yuv420p, 640x480 [SAR 1:1 DAR 4:3], 881 kb/s, 25.80 fps, 30 tbr, 30k tbn, 1k tbc Metadata: creation_time : 2009-05-20 12:36:37 handler_name : ?Apple Alias Data Handler Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 125 kb/s Metadata: creation_time : 2009-05-20 12:36:37 handler_name : ?Apple Alias Data Handler File 'out.mov' already exists. Overwrite ? [y/N] y Output #0, mov, to 'out.mov': Metadata: major_brand : qt minor_version : 537199360 compatible_brands: qt creation_time : 2009-05-20 12:36:37 encoder : Lavf53.32.100 Stream #0:0(eng): Video: mpeg4 (mp4v / 0x7634706D), yuv420p, 640x480 [SAR 1:1 DAR 4:3], q=2-31, 881 kb/s, 25.80 fps, 30k tbn, 30k tbc Metadata: creation_time : 2009-05-20 12:36:37 handler_name : ?Apple Alias Data Handler Stream #0:1(eng): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, 125 kb/s Metadata: creation_time : 2009-05-20 12:36:37 handler_name : ?Apple Alias Data Handler Stream mapping: Stream #0:0 -&gt; #0:0 (copy) Stream #0:1 -&gt; #0:1 (copy) Press [q] to stop, [?] for help frame= 669 fps= 0 q=-1.0 Lsize= 3206kB time=00:00:25.91 bitrate=1013.5kbits/s video:2789kB audio:398kB global headers:0kB muxing overhead 0.576301% ############################################### The metadata record before: ExifTool Version Number : 8.91 File Name : in.mov Directory : . File Size : 3.2 MB File Modification Date/Time : 2009:05:20 14:37:09+02:00 File Permissions : rwxrwxrwx File Type : MOV MIME Type : video/quicktime Major Brand : Apple QuickTime (.MOV/QT) Minor Version : 2005.3.0 Compatible Brands : qt Movie Data Size : 3354576 Movie Header Version : 0 Create Date : 2009:05:20 12:36:37 Modify Date : 2009:05:20 12:37:09 Time Scale : 30000 Duration : 25.07 s Preferred Rate : 1 Preferred Volume : 100.00% Preview Time : 0 s Preview Duration : 0 s Poster Time : 0 s Selection Time : 0 s Selection Duration : 0 s Current Time : 25.07 s Next Track ID : 3 Track Header Version : 0 Track Create Date : 2009:05:20 12:36:37 Track Modify Date : 2009:05:20 12:37:09 Track ID : 1 Track Duration : 25.07 s Track Layer : 0 Track Volume : 0.00% Image Width : 640 Image Height : 480 Clean Aperture Dimensions : 640x480 Production Aperture Dimensions : 640x480 Encoded Pixels Dimensions : 640x480 Graphics Mode : ditherCopy Op Color : 32768 32768 32768 Compressor ID : mp4v Vendor ID : Apple Source Image Width : 640 Source Image Height : 480 X Resolution : 72 Y Resolution : 72 Compressor Name : MPEG-4 Video Bit Depth : 24 Video Frame Rate : 25.795 Matrix Structure : 1 0 0 0 1 0 0 0 1 Media Header Version : 0 Media Create Date : 2009:05:20 12:36:37 Media Modify Date : 2009:05:20 12:36:37 Media Time Scale : 44100 Media Duration : 25.96 s Handler Class : Data Handler Handler Vendor ID : Apple Handler Description : Apple Alias Data Handler Audio Channels : 2 Audio Bits Per Sample : 16 Audio Sample Rate : 44100 Audio Format : wave Handler Type : Metadata Tags Audio Gain : 1 Trebel : 0 Bass : 0 Balance : 0 Pitch Shift : 0 Mute : Off Brightness : 0 Color : 1 Tint : 0 Contrast : 1 Player Version : 7.6 (7.6) Version : 7.6.0 (1290) 0x7608000 (Mac OS X, 10.5.6, 9G55) Window Location : 263 67 Play Selection : 0 Play All Frames : 0 Avg Bitrate : 1.07 Mbps Image Size : 640x480 Rotation : 0 ############################################### The metadata after: ExifTool Version Number : 8.91 File Name : out.mov Directory : . File Size : 3.1 MB File Modification Date/Time : 2012:05:23 18:44:02+02:00 File Permissions : rw-r--r-- File Type : MOV MIME Type : video/quicktime Major Brand : Apple QuickTime (.MOV/QT) Minor Version : 0.2.0 Compatible Brands : qt Movie Data Size : 3263748 Movie Header Version : 0 Create Date : 2009:05:20 12:36:37 Modify Date : 2009:05:20 12:36:37 Time Scale : 1000 Duration : 26.84 s Preferred Rate : 1 Preferred Volume : 100.00% Preview Time : 0 s Preview Duration : 0 s Poster Time : 0 s Selection Time : 0 s Selection Duration : 0 s Current Time : 0 s Next Track ID : 3 Track Header Version : 0 Track Create Date : 2009:05:20 12:36:37 Track Modify Date : 2009:05:20 12:36:37 Track ID : 1 Track Duration : 26.80 s Track Layer : 0 Track Volume : 0.00% Image Width : 640 Image Height : 480 Graphics Mode : srcCopy Op Color : 0 0 0 Matrix Structure : 1 0 0 0 1 0 0 0 1 Media Header Version : 0 Media Create Date : 2009:05:20 12:36:37 Media Modify Date : 2009:05:20 12:36:37 Media Time Scale : 44100 Media Duration : 26.84 s Balance : 0 Handler Class : Data Handler Handler Type : URL Handler Description : DataHandler Other Format : mp4a Software Version : Lavf53.32.100 Avg Bitrate : 973 kbps Image Size : 640x480 Rotation : 0 </pre> Werner Robitza 2012-05-23T17:41:07 Search the mailing list at Gmane query http://search.gmane.org/?group=$group=gmane.comp.video.ffmpeg.user