January 2013 - ffmpeg-user - lists.ffmpeg.org

How do I make ffplay play without high latency?
by Jesse Gordon 15 Oct '13

15 Oct '13

Good Day, I have an internet-controllable robot (See photo) and I have a little Cisco MP4 streaming video network camera on it, and I'm trying to use ffplay to play the live video stream. The camera encodes the video to either mjpeg or mpeg4 with extremely low latency. I'm using the mpeg4 mode because it requires far less bandwidth. The problem I'm having is that ffplay seems to introduce a second or two of latency -- which is a big deal when you're driving the robot via the video feed, and you can' t see where you're going until after it's too late. With mplayer I was using the -benchmark option which makes it play as fast as possible, but even that has just under a second of latency. I know that the video camera is getting the data out the network port quickly because when I use the windows web client, it has a plugin that streams/plays the mpeg4 and it has very low latency -- so I know the camera is not the source of the latency. (But of course I use Linux.) Is there a way to make ffmpeg play each frame as soon as it can with reduced buffers or whatever so I can get the picture to the screen as soon as possible? I don't care too much about jitter or stuttering - I just need the video on the screen as soon as possible. Thank you very much, ~Jesse NOTE: Below, the "warning: first frame is no keyframe" line happened when I clicked in ffplay to fast forward to the end, to try to get latency to reduce. But the video was playing just fine after I clicked to fast forward. bash-4.1# ffplay http://admin:admin@192.168.0.65/img/video.asf ffplay version N-46939-g030db0c Copyright (c) 2003-2012 the FFmpeg developers built on Nov 21 2012 00:52:42 with gcc 4.5.2 (GCC) configuration: --prefix=/usr libavutil 52. 8.100 / 52. 8.100 libavcodec 54. 74.100 / 54. 74.100 libavformat 54. 37.100 / 54. 37.100 libavdevice 54. 3.100 / 54. 3.100 libavfilter 3. 23.101 / 3. 23.101 libswscale 2. 1.102 / 2. 1.102 libswresample 0. 17.101 / 0. 17.101 [asf @ 0x8f2b1a0] Estimating duration from bitrate, this may be inaccurate Input #0, asf, from 'http://admin:admin@192.168.0.65/img/video.asf': Duration: N/A, start: 0.000000, bitrate: N/A Stream #0:0: Video: mpeg4 (MP4S / 0x5334504D), yuv420p, 640x480, 14.99 tbr, 1k tbn, 1k tbc Frame changed from size:0x0 to size:640x480 4KB sq= 0B f=0/0 [asf @ 0x8f2b1a0] freeing incomplete packet size 972, new 874=0/0 [asf @ 0x8f2b1a0] freeing incomplete packet size 972, new 829=0/0 [asf @ 0x8f2b1a0] freeing incomplete packet size 971, new 823=0/0 [asf @ 0x8f2b1a0] freeing incomplete packet size 975, new 11230/0 [asf @ 0x8f2b1a0] freeing incomplete packet size 974, new 14450/0 [asf @ 0x8f2b1a0] freeing incomplete packet size 974, new 753=0/0 [mpeg4 @ 0x8f40920] warning: first frame is no keyframe 0KB sq= 0B f=0/0 [asf @ 0x8f2b1a0] freeing incomplete packet size 973, new 790=0/0 B f=0/0 [asf @ 0x8f2b1a0] freeing incomplete packet size 975, new 784=0/0 61.58 A-V: 0.000 fd= 517 aq= 0KB vq= 0KB sq= 0B f=0/0 bash-4.1#

6 28

Encoding x264 hangs in a high turn over pipeline
by Luke 06 Oct '13

06 Oct '13

Hello, We are testing ffmpeg in our compression pipeline as our commercial software does not provide the functionality we need. We run a multithreaded compression (ffmpeg multithreading isn't used, our own solution is) using the following command: ffmpeg -i #input# -f mp4 -vcodec libx264 -s 1024x576 -b:v 2000k -g 33 -acodec libmp3lame -b:a 128k -ar 44100 -vf "movie=#logo# [wm]; [in][wm] overlay=10:main_h-overlay_h-10 [out]" -y #output# Approx. 75% threads complete without any problems, the remaining ones get stuck - cpu usage on each thread drops to 0, memory usage gets stuck at around 300MB. Initially we used aac and libvo_aacenc coders for audio, but the hangs seemed more frequent. Tested on a few recent ffmpeg builds, including the one compiled on 20/07. Any help would be greatly appreciated. Many thanks, Luke -- *Luke Niejadlik* Audiomotion Studios Ltd. T: +44 (0)8701 600 504 F: +44 (0)1865 725 651 www.audiomotion.com <http://www.audiomotion.com/> Develop Awards - Best Services Winner 2011, 2009 & 2004 */JOIN THE MOVEMENT!/* - www.facebook.com/audiomotion.studios <http://www.facebook.com/audiomotion.studios> - twitter.com/audiomotion <http://twitter.com/audiomotion> - http://www.join-the-movement.co.uk/

5 8

UDP Multicast streaming
by omar.gomez＠gmail.com 04 Oct '13

04 Oct '13

Hi!, I've been using the FFmpeg + Mplayer combo for a college project I'm working on. The idea is to stream an Opengl app's buffer is real-time in order to have thin-clients interact remotely with the app. I've succeed at building an scenario where the buffer is pulled out of the app and injected to a pipe using the following command: cat <fifo> | ppmtoy4m -S 420jpeg | ffmpeg -y -f yuv4mpegpipe -i - -f avi udp:127.0.0.1:1234 Clients then use the following command to view the stream: mplayer -demuxer mpeg4es udp://@127.0.0.1:5000 This has been working all right, but I want to achieve the following: 1) Work in a multicast scenario. ======================== I though it was as easy as to change the address for a multicasting one like the following: cat <fifo> | ppmtoy4m -S 420jpeg | ffmpeg -y -f yuv4mpegpipe -i - -f avi udp:224.0.0.1:5000?ttl=1 Using the ?ttl parameter was something I found by googling, but I'm not sure if that works. At the same time MPLayer clients should work by using: mplayer -demuxer mpeg4es udp://@224.0.0.1:5000 Which works, but I'm wondering why I *have* to add a port (being a multicast address) and why it doesn't work if I open a second client (I believe is still working as unicast) 2) Using VLC ========== I've not been able to make this work with VLC. That "demuxer" parameter seen to be the problem. 3) Use different containers,codecs ================== This seems to be working using mpeg4+yuv420p. I would like to experiment with other codes as well, like h263p or h262. Have any of you have had one of these problems? I appreciate any help --Omar -- Follow me at: Twitter: http://twitter.com/omargomez Buzz: http://www.google.com/profiles/108165850309051561506#buzz Blog: blog.pixagora.com

2 1

compile error: ffmpeg av_get_default_channel_layout
by Sven Dueking 06 Sep '13

06 Sep '13

Hi all, I am not a linux expert, maybe I made something stupied but I was not able to figure out what´s wrong here. Basically I downloaded ffmpeg 11.0, build it and set the lib and include path in eclipse. But I get this error : relocation error: /usr/local/lib/libavcodec.so.54: symbol av_get_default_channel_layout, version LIBAVUTIL_51 not defined in file libavutil.so.51 with link time reference My guess is, there is a mismatch between older and newer libs from ffmpeg. Can anyone help here ? Not sure if this makes a difference, the same code works under windows. Thanks, Sven

6 11

Extracting MXF Metadata
by hsomob1999＠yahoo.com 02 Sep '13

02 Sep '13

Hello, Is it possible to retrieve MXF metadata with ffmpeg? Is there way to extract metadata from any format? I see that there is a -metadata flag but this only allows one to set metadata. Thanks

3 2

How to the use drawtext.c in my program
by ajaxhe 08 Aug '13

08 Aug '13

Now, I want to add the system datetime information in per video frame, then store as a .mp4 file. I have known drawtext.c can finish this task, but any example to use the APIs in drawtext.c? thanks! -- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/How-to-the-use-drawtext-c-in-my-pr… Sent from the FFmpeg-users mailing list archive at Nabble.com.

2 1

pkg-config --static ?
by Roger Pack 04 Aug '13

04 Aug '13

Hello. I noticed that "by default" when I compile fontconfig as a static library, then enable it in ffmpeg with --enable-fontconfig, I get these: /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcxml.o): In function `FcConfigMessage': /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcxml.c:504: undefined reference to `XML_GetCurrentLineNumber' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcxml.c:507: undefined reference to `XML_GetCurrentLineNumber' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcxml.o): In function `FcConfigParseAndLoad': /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcxml.c:2928: undefined reference to `XML_ParserCreate' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcxml.c:2940: undefined reference to `XML_SetUserData' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcxml.c:2942: undefined reference to `XML_SetDoctypeDeclHandler' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcxml.c:2943: undefined reference to `XML_SetElementHandler' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcxml.c:2944: undefined reference to `XML_SetCharacterDataHandler' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcxml.c:2950: undefined reference to `XML_GetBuffer' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcxml.c:2967: undefined reference to `XML_ParseBuffer' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcxml.c:2979: undefined reference to `XML_ParserFree' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcxml.c:2970: undefined reference to `XML_GetErrorCode' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcxml.c:2970: undefined reference to `XML_ErrorString' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcfreetype.o): In function `FcFreeTypeUseNames': /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:2068: undefined reference to `FT_Has_PS_Glyph_Names' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcfreetype.o): In function `FcFreeTypeCheckGlyph': /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:2256: undefined reference to `FT_Load_Glyph' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcfreetype.o): In function `FcFreeTypeCharSetAndSpacingForSize': /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:2319: undefined reference to `FT_Select_Size' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:2330: undefined reference to `FT_Select_Charmap' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:2342: undefined reference to `FT_Get_Char_Index' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:2455: undefined reference to `FT_Get_Glyph_Name' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:2389: undefined reference to `FT_Get_First_Char' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:2428: undefined reference to `FT_Get_Next_Char' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcfreetype.o): In function `FcFreeTypeCharIndex': /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:2202: undefined reference to `FT_Select_Charmap' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:2212: undefined reference to `FT_Get_Char_Index' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcfreetype.o): In function `FcFreeTypeGlyphNameIndex': /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:2151: undefined reference to `FT_Get_Glyph_Name' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcfreetype.o): In function `FcFreeTypeCharSetAndSpacing': /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:2535: undefined reference to `FT_Get_Sfnt_Table' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcfreetype.o): In function `FcFreeTypeQueryFace': /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1144: undefined reference to `FT_Get_Sfnt_Table' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1164: undefined reference to `FT_Get_Sfnt_Name_Count' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1188: undefined reference to `FT_Get_Sfnt_Name' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1391: undefined reference to `FT_Get_Sfnt_Table' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcfreetype.o): In function `FcFontCapabilities': /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:2705: undefined reference to `FT_Load_Sfnt_Table' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcfreetype.o): In function `FcFreeTypeQueryFace': /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1495: undefined reference to `FT_Get_PS_Font_Info' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1649: undefined reference to `FT_Get_BDF_Property' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1670: undefined reference to `FT_Get_BDF_Property' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcfreetype.o): In function `FcGetPixelSize': /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1034: undefined reference to `FT_Get_BDF_Property' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcfreetype.o): In function `FcFreeTypeQueryFace': /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1530: undefined reference to `FT_Get_BDF_Property' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1537: undefined reference to `FT_Get_BDF_Property' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcfreetype.o):/home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1560: more undefined references to `FT_Get_BDF_Property' follow /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcfreetype.o): In function `FcFreeTypeQueryFace': /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1495: undefined reference to `FT_Get_PS_Font_Info' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1709: undefined reference to `FT_Get_X11_Font_Format' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib/libfontconfig.a(fcfreetype.o): In function `FcFreeTypeQuery': /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1740: undefined reference to `FT_Init_FreeType' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1743: undefined reference to `FT_New_Face' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1752: undefined reference to `FT_Done_FreeType' /home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/win32/fontconfig-2.10.1/src/fcfreetype.c:1750: undefined reference to `FT_Done_Face' presumably, because it is running pkg-config like this: $ pkgconfig pkg-config --libs fontconfig which outputs: -L/home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib -lfontconfig after consulting the fontconfig people, they suggest this work around: $ pkg-config --static --libs fontconfig which outputs this: -L/home/rogerdpack/dev/ffmpeg-windows-build-helpers/builds/mingw-w64-i686/i686-w64-mingw32/lib -lfontconfig -lexpat -lfreetype and works. So the question is, if it would be possible to call it like that instead somehow? Anyway just wondering. Thanks! -r

3 5

libx264 mp4 encoded video won't play back in chrome/quicktime
by Damon Edwards 28 Jul '13

28 Jul '13

The video won't load in the <video> tag, and played through quicktime I can only get the audio with a gray video. The input is an mp4, it gets spit into an image sequence, filters applied to the images, then recompiled into an mp4: $ffmpeg . ' -i ' . $image_dir . '/audio.mp3 -f image2 -r ' . $framerate . ' -i ' . $image_dir . '/%11d-' . $filter . '.jpg -vcodec libx264 -b ' . $bitrate . ' ' . $video_dir . $filename . '-' . $unique . '-' . $filter . '.mp4' output: [root@localhost html]# php filmstrip.php ffmpeg version N-40099-g2b336df Copyright (c) 2000-2012 the FFmpeg developers built on Apr 24 2012 14:15:49 with gcc 4.4.6 20110731 (Red Hat 4.4.6-3) configuration: --enable-gpl --enable-libmp3lame --enable-libtheora --enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-version3 libavutil 51. 47.100 / 51. 47.100 libavcodec 54. 15.100 / 54. 15.100 libavformat 54. 3.100 / 54. 3.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 72.100 / 2. 72.100 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 '/var/www/html/video/switches.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isomavc1mp42 creation_time : 2007-08-26 06:33:35 Duration: 00:00:30.43, start: 0.000000, bitrate: 625 kb/s Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 125 kb/s Metadata: creation_time : 2007-08-26 06:33:35 handler_name : (C) 2007 Google Inc. v06.24.2007. Stream #0:1(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 480x360 [SAR 1:1 DAR 4:3], 498 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 60k tbc Metadata: creation_time : 2007-08-26 06:33:35 handler_name : (C) 2007 Google Inc. v06.24.2007. The bitrate parameter is set too low. It takes bits/s as argument, not kbits/s Output #0, mp3, to '/var/www/html/video/images/switches-sepia-test/audio.mp3': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isomavc1mp42 TDEN : 2007-08-26 06:33:35 TSSE : Lavf54.3.100 Stream #0:0(und): Audio: mp3, 44100 Hz, stereo, s16, 0 kb/s Metadata: creation_time : 2007-08-26 06:33:35 handler_name : (C) 2007 Google Inc. v06.24.2007. Stream mapping: Stream #0:0 -> #0:0 (aac -> libmp3lame) Press [q] to stop, [?] for help size= 475kB time=00:00:30.37 bitrate= 128.2kbits/s video:0kB audio:475kB global headers:0kB muxing overhead 0.065364% ffmpeg version N-40099-g2b336df Copyright (c) 2000-2012 the FFmpeg developers built on Apr 24 2012 14:15:49 with gcc 4.4.6 20110731 (Red Hat 4.4.6-3) configuration: --enable-gpl --enable-libmp3lame --enable-libtheora --enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-version3 libavutil 51. 47.100 / 51. 47.100 libavcodec 54. 15.100 / 54. 15.100 libavformat 54. 3.100 / 54. 3.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 72.100 / 2. 72.100 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 '/var/www/html/video/switches.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isomavc1mp42 creation_time : 2007-08-26 06:33:35 Duration: 00:00:30.43, start: 0.000000, bitrate: 625 kb/s Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 125 kb/s Metadata: creation_time : 2007-08-26 06:33:35 handler_name : (C) 2007 Google Inc. v06.24.2007. Stream #0:1(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 480x360 [SAR 1:1 DAR 4:3], 498 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 60k tbc Metadata: creation_time : 2007-08-26 06:33:35 handler_name : (C) 2007 Google Inc. v06.24.2007. [buffer @ 0x367a8c0] w:480 h:360 pixfmt:yuv420p tb:1/1000000 sar:1/1 sws_param:flags=2 [buffersink @ 0x367ade0] auto-inserting filter 'auto-inserted scale 0' between the filter 'src' and the filter 'out' [scale @ 0x36ab220] w:480 h:360 fmt:yuv420p sar:1/1 -> w:480 h:360 fmt:yuvj420p sar:1/1 flags:0x4 Output #0, image2, to '/var/www/html/video/images/switches-sepia-test/%11d.jpg': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isomavc1mp42 creation_time : 2007-08-26 06:33:35 encoder : Lavf54.3.100 Stream #0:0(und): Video: mjpeg, yuvj420p, 480x360 [SAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 90k tbn, 29.97 tbc Metadata: creation_time : 2007-08-26 06:33:35 handler_name : (C) 2007 Google Inc. v06.24.2007. Stream mapping: Stream #0:1 -> #0:0 (h264 -> mjpeg) Press [q] to stop, [?] for help frame= 208 fps=0.0 q=0.0 size= 0kB time=00:00:06.94 bitrate= 0.0kbits/sframe= 412 fps=411 q=0.0 size= 0kB time=00:00:13.74 bitrate= 0.0kbits/sframe= 602 fps=400 q=0.0 size= 0kB time=00:00:20.08 bitrate= 0.0kbits/sframe= 803 fps=401 q=0.0 size= 0kB time=00:00:26.79 bitrate= 0.0kbits/sframe= 912 fps=398 q=0.0 Lsize= 0kB time=00:00:30.43 bitrate= 0.0kbits/s video:32442kB audio:0kB global headers:0kB muxing overhead -100.000000% ffmpeg version N-40099-g2b336df Copyright (c) 2000-2012 the FFmpeg developers built on Apr 24 2012 14:15:49 with gcc 4.4.6 20110731 (Red Hat 4.4.6-3) configuration: --enable-gpl --enable-libmp3lame --enable-libtheora --enable-libvo-aacenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-version3 libavutil 51. 47.100 / 51. 47.100 libavcodec 54. 15.100 / 54. 15.100 libavformat 54. 3.100 / 54. 3.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 72.100 / 2. 72.100 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 11.100 / 0. 11.100 libpostproc 52. 0.100 / 52. 0.100 [mp3 @ 0x2dd5040] max_analyze_duration 5000000 reached at 5015510 Input #0, mp3, from '/var/www/html/video/images/switches-sepia-test/audio.mp3': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isomavc1mp42 creation_time : 2007-08-26 06:33:35 encoder : Lavf54.3.100 Duration: 00:00:30.40, start: 0.000000, bitrate: 128 kb/s Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16, 128 kb/s [image2 @ 0x2dd6aa0] max_analyze_duration 5000000 reached at 5005005 Input #1, image2, from '/var/www/html/video/images/switches-sepia-test/%11d-sepia.jpg': Duration: 00:00:30.43, start: 0.000000, bitrate: N/A Stream #1:0: Video: mjpeg, yuvj420p, 480x360 [SAR 1:1 DAR 4:3], 29.97 fps, 29.97 tbr, 29.97 tbn, 29.97 tbc Please use -b:a or -b:v, -b is ambiguous [buffer @ 0x2dd5da0] w:480 h:360 pixfmt:yuvj420p tb:1/1000000 sar:1/1 sws_param:flags=2 [libx264 @ 0x313d2a0] using SAR=1/1 [libx264 @ 0x313d2a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX [libx264 @ 0x313d2a0] profile High, level 3.0 [libx264 @ 0x313d2a0] 264 - core 122 r2184 5c85e0a - 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=3 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=cbr mbtree=1 bitrate=0 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, mp4, to '/var/www/html/video/switches-test-sepia.mp4': Metadata: major_brand : mp42 minor_version : 0 compatible_brands: isomavc1mp42 creation_time : 2007-08-26 06:33:35 encoder : Lavf54.3.100 Stream #0:0: Video: h264 (![0][0][0] / 0x0021), yuvj420p, 480x360 [SAR 1:1 DAR 4:3], q=-1--1, 2997 tbn, 29.97 tbc Stream #0:1: Audio: aac (@[0][0][0] / 0x0040), 44100 Hz, stereo, s16, 128 kb/s Stream mapping: Stream #1:0 -> #0:0 (mjpeg -> libx264) Stream #0:0 -> #0:1 (mp3 -> libvo_aacenc) Press [q] to stop, [?] for help frame= 158 fps=0.0 q=69.0 size= 60kB time=00:00:03.63 bitrate= 135.7kbits/frame= 309 fps=308 q=69.0 size= 142kB time=00:00:08.67 bitrate= 134.2kbits/frame= 466 fps=309 q=69.0 size= 232kB time=00:00:13.91 bitrate= 136.4kbits/frame= 624 fps=310 q=69.0 size= 322kB time=00:00:19.18 bitrate= 137.5kbits/frame= 782 fps=311 q=69.0 size= 411kB time=00:00:24.45 bitrate= 137.8kbits/frame= 912 fps=306 q=-1.0 Lsize= 546kB time=00:00:30.36 bitrate= 147.2kbits/s video:36kB audio:476kB global headers:0kB muxing overhead 6.526406% [libx264 @ 0x313d2a0] frame I:4 Avg QP:51.00 size: 187 [libx264 @ 0x313d2a0] frame P:448 Avg QP:51.00 size: 64 [libx264 @ 0x313d2a0] frame B:460 Avg QP:51.00 size: 16 [libx264 @ 0x313d2a0] consecutive B-frames: 2.2% 88.6% 9.2% 0.0% [libx264 @ 0x313d2a0] mb I I16..4: 72.7% 27.3% 0.0% [libx264 @ 0x313d2a0] mb P I16..4: 1.4% 0.9% 0.0% P16..4: 1.5% 0.1% 1.3% 0.0% 0.0% skip:94.8% [libx264 @ 0x313d2a0] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 0.0% 0.0% 0.0% direct: 0.0% skip:100.0% L0:33.3% L1:66.7% BI: 0.0% [libx264 @ 0x313d2a0] final ratefactor: inf [libx264 @ 0x313d2a0] 8x8 transform intra:35.7% [libx264 @ 0x313d2a0] coded y,uvDC,uvAC intra: 0.0% 0.8% 0.0% inter: 0.0% 0.0% 0.0% [libx264 @ 0x313d2a0] i16 v,h,dc,p: 83% 15% 1% 0% [libx264 @ 0x313d2a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 0% 0% 100% 0% 0% 0% 0% 0% 0% [libx264 @ 0x313d2a0] i8c dc,h,v,p: 100% 0% 0% 0% [libx264 @ 0x313d2a0] Weighted P-Frames: Y:8.3% UV:1.3% [libx264 @ 0x313d2a0] ref P L0: 93.6% 0.3% 4.9% 1.1% 0.2% [libx264 @ 0x313d2a0] ref B L0: 50.0% 50.0% [libx264 @ 0x313d2a0] kb/s:9.64 [root@localhost html]# -- Damon Edwards gplus.to/damonedwards

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libavutil/common.h:173:47: error: ‘UINT64_C’ was not declared in this scope
by Anders Branderud 23 Jul '13

23 Jul '13

Hello! I get a problem when compiling, which I will describe below: I am using the latest Ubuntu--version in VirtualBox. I am running parts of the encoding-example avaiable in ffmpeg/doc/examples. When I run it I get the following error: In file included from /usr/local/include/libavutil/avutil.h:327:0, from /usr/local/include/libavutil/imgutils.h:30, from videofecencoder.cc:31: /usr/local/include/libavutil/common.h: In function ‘int32_t av_clipl_int32_c(int64_t)’: /usr/local/include/libavutil/common.h:173:47: error: ‘UINT64_C’ was not declared in this scope How is this resolved? Thanks in advance! --*Anders Brandeud *[Personal blog] Will of the Creator<http://www.proofexistencegod.com/will-of-god/will-of-god/> : Logical reasons - based on scientific premises - for the existence of a Super intelligent and Orderly Creator and that He hasn't left His sapient creatures without an Instruction Manual - Torah ['books of Moses'] - to ascertain, and aspire to, His purpose. [Company] Anders Branderud IT Solutions - www.abitsolutions.org

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iMovie created variable frame rates cause a/v sync problems
by jdrukman＠gmail.com 22 Jul '13

22 Jul '13

I have a file generated from Apple's "iMovie HD". It has a variable frame rate, according to mediainfo: Frame rate mode : Variable Frame rate : 29.402 fps Minimum frame rate : 0.303 fps Maximum frame rate : 29.970 fps Original frame rate : 29.970 fps I am trying to get ffmpeg to create a transcoded version suitable for web & iphone streaming, but the audio & video are out of sync. I used ffmpeg -i original.m4v -acodec copy -vcodec libx264 output.mp4 I also tried with -acodec libfaac. Same result. Oddly enough, mediainfo on the ffmpeg converted file shows the same frame rate information, but the soundtrack is clearly not in sync: Frame rate mode : Variable Frame rate : 29.402 fps Minimum frame rate : 0.303 fps Maximum frame rate : 29.970 fps Original frame rate : 29.970 fps Is there some simple command line option that I'm missing to keep the two in sync? I can provide the original file if needed. The current version of iMovie does not have the same problem because it outputs at constant frame rate by default. -jsd-

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