March 2014 - ffmpeg-user - lists.ffmpeg.org

-f segment does not seem to be working
by Michael Hipp 01 Apr '14

01 Apr '14

I'm attempting to segment an incoming mp3 audio stream: ffmpeg -i udp://239.8.8.8:5000 -acodec copy -f segment -segment_time 5 out%03d.mp3 The audio records fine but it never segments. The one file (out000.mp3) just grows and grows. What am I doing wrong? I'm using ffpmeg as ships with ubuntu 12.04 (version 0.8.10-4:0.8.10-0ubuntu0.12.04.1). Thanks, Michael

4 6

Mixed Telecine & Interlaced
by Nicholas Robbins 01 Apr '14

01 Apr '14

I have video, that, by visual inspection, is mixed telecined (2:3) & interlaced. I would like to make it all progressive. I understand if this is impossible, but if everything works as it is supposed to I think "-vf pullup,idet,yadif=deint=interlaced" should do it. Has anyone else tried this? Has it worked? Is there a reason this wouldn't work?

2 9

Minimum configuration settings for ffprobe-only
by Eugene Gekhter 01 Apr '14

01 Apr '14

What would be the recommended configuration settings if all that was required was to build ffprobe for the sole purpose of determining if ffmpeg can decode the input files? The ultimate goal is to compile this with Emscripten into javascript to detect on client-side if the file a user wants to upload is even worth uploading. *Eugene Gekhter* / CEO "Quality is King" (847) 272-8207/ egekhter(a)pixcel.com *Pixcel* Office: (800) 557-3508 3336 Commercial Ave. / Northbrook, IL 60062 http://www.pixcel.com

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problem when trying to convert a video for a copy of it self
by Sonia Alves 01 Apr '14

01 Apr '14

Hello,I'm newer with FFMPEG, I really need help with this one.I'm trying to convert a mp4 video to a copy of it self. I'm developing applications for TV and my mp4 video plays ok in TV.When I try to make a copy of it I run this in command line:ffmpeg -i Oscars.mp4 -f mp4 -vcodec copy -acodec copy -s 640x360 Oscars2.mp4The result is a mp4 video with the same codec audio, codec video and rate, but the size changes!The original video has 5892KB and the converted video has 5854KB. The size is the only difference I see between this two videos.Besides that, the converted video doesn't play in TV but the original one does!It seems to me that the converted video doesn't really equals to the original one but I can't figure out why.Can you help me with this one please?Thank you

3 4

Memory leaks in ffmpeg 2.2
by praks411 01 Apr '14

01 Apr '14

Hi I'm using ffmpeg in my project for quite sometime. Recently I shifted to ffmpeg 2.2 and I'm seeing memory leaks which were not there earlier. Debugging further I found just by calling avformat_alloc_context() and then freeing the context using avformat_close_input(). I getting memory leaks of 87bytes. Also if I go further and call avformat_open_input and avformat_find_stream. The memory leaks increases. These memory leaks are fixed whether I do decoding or not. I'm not sure if these are genuine leaks or do I need to deallocate something more. Please suggest. Thanks and Regards, Pradeep -- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/Memory-leaks-in-ffmpeg-2-2-tp46645… Sent from the FFmpeg-users mailing list archive at Nabble.com.

4 6

sporadic rtmp live stream crashes
by Adam Herbst 01 Apr '14

01 Apr '14

I am using this command: ffmpeg -i "rtmp://wowzahost:1935/videochat/test live=1" -c:a libfdk_aac -movflags +faststart -c:v libx264 -r 25 -g 50 test.m3u8 As you can see the incoming rtmp is from a Wowza server. It originates from an iPhone. At first I had ffmpeg compiled with only internal rtmp support, and it would crash every few minutes (time would vary from ~1-10 minutes) with no error message (even using -loglevel debug), just as if the stream had ended, even though it hadn't. So then I compiled ffmpeg from scratch with librtmp, and now it has better stability, but only after the first few minutes of the stream. During the first few minutes, it may or may not crash, as many as 10 times per stream if I keep restarting it. I started with the latest ubuntu librtmp-dev repo, and that was giving the error: RTMP_ReadPacket, failed to read RTMP packet header (and sometimes "body" instead of header) That seemed like it might be related to this issue of newly introduced extended packet headers: http://lists.mplayerhq.hu/pipermail/rtmpdump/2014-March/002338.html So I switched to the latest librtmp using git clone git://git.ffmpeg.org/rtmpdump and recompiled ffmpeg with that. Now it gives this error message: RTMPSockBuf_Fill, recv returned -1. GetSockError(): 104 (Connection reset by peer) The point of this is to make an HLS stream for iOS devices. I know the incoming rtmp is okay because VLC can play it. My fallback is to have the python server that is controlling this conversion monitor the ffmpeg process and restart it whenever it crashes, but I suspect that will make for a really choppy stream. Is this just an occupational hazard or am I missing some key incompatibility between the Wowza output and my ffmpeg method? Do I need to add some librtmp parameters in the input string? Any thoughts will be much appreciated.

2 5

http input issues against S3
by Brian Quandt 01 Apr '14

01 Apr '14

When using http as an input "-i" it seems that error handling (or retrying) seems weak. Are there any options to the command line to improve error handling / retry's on http connections (when used as input). For instance, if I happen to try to use ffmpeg to transcode from an S3 source, which happens to be on a very heavily used connection, I often get HTTP 500 type errors (ie 502, 503, etc). These are nearly never fatal, but simply indicate a retry is necessary. ffmpeg using default parameters, results in messages like: [https @ 0x1bb2a00] HTTP error 502 Bad Gateway2kbits/s [mov,mp4,m4a,3gp,3g2,mj2 @ 0x1bb2220] stream 1, offset 0x2072adc0: partial file https://api-content.dropbox.com/1/files/auto//of_god_and_dogs_1280x720.mp4: Invalid data found when processing input And data is then lost (ie seems like the connection is terminated). Is there a patch to this behavior or command lines options to set to improve retry's? Here's my example ffmpeg command line I'm currently using: ffmpeg -y -user-agent autodcp/1.0 -headers Authorization: Bearer nta1234123444123Pr3tp82_S-9wQTdI1? -i https://somewhere/o.mp4 -f wav /tmp/out.wav

1 0

Remove cue point from wav file
by Peter Kroon 31 Mar '14

31 Mar '14

It is possible to remove cuepoints from WAV file eith ffmpeg?

2 3

答复: Custom Build
by 刘鹏 31 Mar '14

31 Mar '14

Hi, This time I built in RedHat Linux 64bit machine. 1. Download the latest mingw-w64-build-3.5.8 sript from http://ffmpeg.zeranoe.com/blog/ 2. Run the script for a whole night. 3. Add “/root/software/mingw-w64/mingw-w64-i686/bin” in the PATH env 4. cd /root/software/ ffmpeg-0.8.15 5. ./configure --enable-memalign-hack --enable-cross-compile --target-os=mingw32 --arch=x86 --cross-prefix=i686-w64-mingw32- 6. But show fail: i686-w64-mingw32-gcc is unable to create an executable file. C compiler test failed. I didn’t found i686-w64-mingw32-gcc in /root/software/mingw-w64/mingw-w64-i686/bin directory indeed. Could you please kindly explain why, please? Thank you! . 发件人: 刘鹏 [mailto:michaelliu@qiyi.com] 发送时间: 2014年3月26日 18:29 收件人: 'ffmpeg-user(a)ffmpeg.org' 主题: 答复: Custom Build Hi, I use Mingw-w64(download the latest mingw-builds-install.exe and install then, get a combination of mingw and msys). My source code is in the directory E:\study\ffmpeg\ffmpeg-0.8.15 so edit the file fstab in C:\MinGW\msys\1.0\etc, add a line E:\study\ffmpeg\ffmpeg-0.8.15 /home/michaelliu/ffmpeg-0.8.15 (michaelliu is my userid, folder /home/michaelliu/ffmpeg-0.8.15 is a empty folder I created) Restart the shell box run the following bash: cd ~/ ffmpeg-0.8.15 ls(Indeed found many files of ffmpeg) ./configure But failed … Attached fail log FYI! Would you please kindly give me an answer? Thank you very much! 发件人: Kyle Schwarz [mailto:zeranoe@zeranoe.com] 发送时间: 2014年3月21日 5:26 收件人: 刘鹏主题: Re: Custom Build Michael, Dshow support will automatically be enabled if your toolchain supports it. No need for extra arguments. Best regards, Kyle On 3/19/2014 4:28 AM, 刘鹏 wrote: Hi, I’m Michael Lewis from China. Nice to see you! Could you please tell me which property I should enable to support dshow? http://ffmpeg.zeranoe.com/builds/readme/win32/shared/ffmpeg-20140319-git-ce… 直播中心联合Logo白底透明地址：上海市徐汇区宜山路1388号民润商务楼11层邮编：201103 手机：+86 13651694599 电话：+86 21 54519520-8964 邮箱： <mailto:yangrui@qiyi.com> michaelliu(a)qiyi.com liupeng2(a)qiyi.com

3 2

support for .oga and .ogx formats? (sort of feature request)
by roger21 31 Mar '14

31 Mar '14

hello, i'm surprised the .oga format is not supported while the .ogv is, and they both seems to be aliases to .ogg anyway since .oga is the official extension of the audio/ogg MIME type (just like .ogv is the official extension for the video/ogg MIME type) it would be nice to have both https://wiki.xiph.org/MIMETypesCodecs i understand .ogx could be a bit more complicated since the format seems more featured so my question would be, is there an explanation, is it experimental, is it so lame that nobody care anyway? thanks

3 6

Optimal settings to stream mono audio signal for high quality and low latency
by Scott Selberg 30 Mar '14

30 Mar '14

Hi, I'm experimenting to see if I could use ffmpeg and rtp streaming to an iPhone as an in-ear-monitor during my band's performance. Sennheiser makes an RF unit for $1,000. I'm hoping we can do this a bit cheaper. I need to stream a mono signal then receive it on the iPhone/Android and play it back. Can anybody suggest the optimal settings for this use case? -Scott

1 0

Mapping of audio streams after -filter_complex concat
by John Bartlett 29 Mar '14

29 Mar '14

All, I am attempting to join several files and ranscode. however the output audio streams are swapped at the output of the concat filter and the parameters associated with the streams appear to have been merged. Any help/advice is appreciated.. The command I am using is: ffmpeg -i D:\Transcode\itv\assets\inprogress\2459c45e-c9a0-439a-a933-1e3d49198038_sequence1.ts -i D:\Transcode\itv\assets\inprogress\2459c45e-c9a0-439a-a933-1e3d49198038_sequence2.ts -i D:\Transcode\itv\assets\inprogress\2459c45e-c9a0-439a-a933-1e3d49198038_sequence3.ts -filter_complex "[0:0] [0:1] [0:2] [1:0] [1:1] [1:2] [2:0] [2:1] [2:2] concat=n=3:v=1:a=2 [v0] [a0] [a1]" -map "[v0]” -map "[a0]" -map "[a1]” -c:v:[v0] h264 -b:v 5000k -bufsize 600k -maxrate 5000k -minrate 5000k -deinterlace -coder 1 -trellis 1 -r 25 -keyint_min 12 -g 12 -bf 1 -b_strategy 1 -partitions +parti8x8+parti4x4+partp8x8+partb8x8 -me_method epzs -aspect 16:9 -s 720x576 -me_range 16 -sc_threshold 40 -i_qfactor 0.71 -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -pix_fmt yuv420p -c:a:[a0] mp2 -ab 192k -ar 48000 -ac 2 -sample_fmt s16 -c:a:[a1] ac3 -ab 384k -ar 48000 -ac 2 -sample_fmt fltp -f mpegts -y "d:\tank\Hp_2.ts" The output I get is: Input #0, mpegts, from 'D:\Transcode\itv\assets\inprogress\2459c45e-c9a0-439a-a933-1e3d49198038_sequence1.ts': Duration: 00:00:05.48, start: 1.400000, bitrate: 94618 kb/s Program 1 Metadata: service_name : Service01 service_provider: FFmpeg Stream #0:0[0x100]: Video: h264 (High 4:2:2 Intra) ([27][0][0][0] / 0x001B), yuv422p, 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #0:1[0x101](eng): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 192 kb/s Stream #0:2[0x102](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, stereo, fltp, 384 kb/s Input #1, mpegts, from 'D:\Transcode\itv\assets\inprogress\2459c45e-c9a0-439a-a933-1e3d49198038_sequence2.ts': Duration: 00:00:00.99, start: 1.400000, bitrate: 75595 kb/s Program 1 Metadata: service_name : Service01 service_provider: FFmpeg Stream #1:0[0x100]: Video: h264 (High 4:2:2 Intra) ([27][0][0][0] / 0x001B), yuv422p, 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #1:1[0x101](eng): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 192 kb/s Stream #1:2[0x102](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, stereo, fltp, 384 kb/s Input #2, mpegts, from 'D:\Transcode\itv\assets\inprogress\2459c45e-c9a0-439a-a933-1e3d49198038_sequence3.ts': Duration: 00:00:03.23, start: 1.400000, bitrate: 92505 kb/s Program 1 Metadata: service_name : Service01 service_provider: FFmpeg Stream #2:0[0x100]: Video: h264 (High 4:2:2 Intra) ([27][0][0][0] / 0x001B), yuv422p, 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc Stream #2:1[0x101](eng): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 192 kb/s Stream #2:2[0x102](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, stereo, fltp, 384 kb/s [libx264 @ 03f90020] using SAR=64/45 [libx264 @ 03f90020] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX [libx264 @ 03f90020] profile High, level 3.0 [mp2 @ 0316ac00] Specified sample format fltp is invalid or not supported Output #0, mpegts, to 'd:\tank\Hp_2.ts': Stream #0:0: Video: h264 (libx264), yuv420p, 720x576 [SAR 64:45 DAR 16:9], q=10-51, 5000 kb/s, 90k tbn, 25 tbc Stream #0:1: Audio: ac3, 48000 Hz, stereo, fltp, 384 kb/s Stream #0:2: Audio: mp2, 48000 Hz, stereo, fltp, 384 kb/s Stream mapping: Stream #0:0 (h264) -> concat:in0:v0 Stream #0:1 (mp2) -> concat:in0:a0 Stream #0:2 (ac3) -> concat:in0:a1 Stream #1:0 (h264) -> concat:in1:v0 Stream #1:1 (mp2) -> concat:in1:a0 Stream #1:2 (ac3) -> concat:in1:a1 Stream #2:0 (h264) -> concat:in2:v0 Stream #2:1 (mp2) -> concat:in2:a0 Stream #2:2 (ac3) -> concat:in2:a1 concat:out:v0 -> Stream #0:0 (libx264) concat:out:a0 -> Stream #0:1 (ac3) concat:out:a1 -> Stream #0:2 (mp2) Error while opening encoder for output stream #0:2 - maybe incorrect parameters such as bit_rate, rate, width or height John

2 2

Bad A/V Sync Using ffmpeg on V4L2 Input Device
by Leo L. Schwab 29 Mar '14

29 Mar '14

I actually contributed to a bug report on this issue a year and a half ago ( https://trac.ffmpeg.org/ticket/692#comment:15 ). Basically, the problem is that using ffmpeg to record from a USB video capture device leaves the audio and video tracks out of sync. Depending on which input you list on the command line first, the sync problem will be different. Since contributing to that report, ffmpeg has undergone many revisions, and the bug report has been updated to say that the problem was fixed by adding new command line options to the V4L2 indev ("-ts default|abs|mono2abs"). However, I have no idea what these new options mean or how they're meant to be used. I tried again using ffmpeg to record from the video capture device. While the audio and video aren't as badly out of sync as they were 18 months ago, they're still out of sync. Clearly, someone thinks this is fixed, leading me to think that I need more magic on the command line. Here's my latest incantation: ffmpeg -f alsa -i hw:1 -f v4l2 -i /dev/video0 -acodec libfaac -b:a 128k -vcodec libx264 -b:v 12M -g 1 -preset ultrafast SYNCTEST.mp4 Adding various -ts options to the line doesn't seem to accomplish anything. The USB video capture device is a Pinnacle Dazzle DVC 100. I'm using ffmpeg version 2.1.4. The console output from a sample capture session is appended below. Thanks in advance for any further insights. Schwab ---- $ ffmpeg -f alsa -i hw:1 -f v4l2 -i /dev/video0 -acodec libfaac -b:a 128k -vcodec libx264 -b:v 12M -g 1 -preset ultrafast SYNCTEST.mp4 ffmpeg version 2.1.4 Copyright (c) 2000-2014 the FFmpeg developers built on Feb 24 2014 08:21:48 with gcc 4.8 (Debian 4.8.2-16) configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample --enable-libiec61883 --enable-libfdk-aac --enable-vaapi --enable-libdc1394 --disable-altivec --disable-armv5te --disable-armv6 --disable-vis --shlibdir=/usr/lib/x86_64-linux-gnu libavutil 52. 48.101 / 52. 48.101 libavcodec 55. 39.101 / 55. 39.101 libavformat 55. 19.104 / 55. 19.104 libavdevice 55. 5.100 / 55. 5.100 libavfilter 3. 90.100 / 3. 90.100 libavresample 1. 1. 0 / 1. 1. 0 libswscale 2. 5.101 / 2. 5.101 libswresample 0. 17.104 / 0. 17.104 libpostproc 52. 3.100 / 52. 3.100 Guessed Channel Layout for Input Stream #0.0 : stereo Input #0, alsa, from 'hw:1': Duration: N/A, start: 1394670862.629223, bitrate: 1536 kb/s Stream #0:0: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s Input #1, video4linux2,v4l2, from '/dev/video0': Duration: N/A, start: 575244.424820, bitrate: 165722 kb/s Stream #1:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 720x480, 165722 kb/s, 29.97 fps, 29.97 tbr, 1000k tbn, 1000k tbc No pixel format specified, yuv422p for H.264 encoding chosen. Use -pix_fmt yuv420p for compatibility with outdated media players. [libx264 @ 0x1d1b0a0] using cpu capabilities: MMX2 SSE2Slow SlowCTZ [libx264 @ 0x1d1b0a0] profile High 4:2:2 Intra, level 3.0, 4:2:2 8-bit [libx264 @ 0x1d1b0a0] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 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=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=1 keyint_min=1 scenecut=0 intra_refresh=0 rc=abr mbtree=0 bitrate=12000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0 Output #0, mp4, to 'SYNCTEST.mp4': Metadata: encoder : Lavf55.19.104 Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv422p, 720x480, q=-1--1, 12000 kb/s, 30k tbn, 29.97 tbc Stream #0:1: Audio: aac (libfaac) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, s16, 128 kb/s Stream mapping: Stream #1:0 -> #0:0 (rawvideo -> libx264) Stream #0:0 -> #0:1 (pcm_s16le -> libfaac) Press [q] to stop, [?] for help frame= 436 fps= 30 q=-1.0 Lsize= 706kB time=00:00:14.91 bitrate= 387.9kbits/s dup=0 drop=4 video:448kB audio:240kB subtitle:0 global headers:0kB muxing overhead 2.682203% [libx264 @ 0x1d1b0a0] frame I:436 Avg QP: 0.00 size: 1051 [libx264 @ 0x1d1b0a0] mb I I16..4: 100.0% 0.0% 0.0% [libx264 @ 0x1d1b0a0] final ratefactor: -25.57 [libx264 @ 0x1d1b0a0] coded y,uvDC,uvAC intra: 0.0% 0.0% 0.0% [libx264 @ 0x1d1b0a0] i16 v,h,dc,p: 97% 0% 3% 0% [libx264 @ 0x1d1b0a0] i8c dc,h,v,p: 100% 0% 0% 0% [libx264 @ 0x1d1b0a0] kb/s:252.03

4 6

Any way to exclude timecode track from output?
by Salmor 28 Mar '14

28 Mar '14

I'm creating mxfs and I'm discovering (via mediainfo) that two timecode tracks are included SMPTE and MXF and the former is seeming to cause some compatibility issues. Is there any way I can exclude it when creating the MXFs? Thanks

2 1

Expert ffmpeg consult needed.
by Rob Condon 27 Mar '14

27 Mar '14

I have short 3 second video clips created using this command line: ffmpeg -i $s_path -f image2 -loop 1 -r 2 -i $image_path -shortest -c:a copy -c:v libx264 -r 29.97 -preset veryfast -pix_fmt yuv420p $ts_path they seem fine however I am trying to join a bunch of them and the results vary. Most times the audio plays much faster than the video. I need someone to take my source files and determine how to sync them so they can be joined properly. I am willing to pay for this. Thanks

2 1

Fetching partial FLVs?
by Chris Pennello 27 Mar '14

27 Mar '14

I'm using FFmpeg with fast seeking to try to fetch a partial FLV (a) quickly and (b) in a manner such that FFmpeg will be able to copy the streams out of it and do further transcoding, etc. However, it still seems to be fetching more data than is necessary by several orders of magnitude. For SD streams, the extra time spent fetching the superfluous data doesn't have a significant impact, although it would be nice to minimize. But for HD streams, the impact is unacceptable. Below is pasted a transcript of a run of FFmpeg. You can see that after the first couple of brief fetches, it does a range request for almost 150MB of data, and then another for over 50MB, despite the fact that the final stream output is under 5MB. Why is it fetching so much extra data? Is there a way to get it to fetch the portion of the FLV more quickly? Much appreciated, Chris % time ffmpeg -loglevel debug -ss 895.582 -i http://media-cdn.twitch.tv/store81.media62/archives/2013-7-25/live_user_spe… -t 24.825 -c copy -y asdf.flv ffmpeg version git-2013-11-05-04047b6 Copyright (c) 2000-2013 the FFmpeg developers built on Nov 26 2013 15:43:04 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5) configuration: --prefix=/usr/local/src/ffmpeg_build --extra-cflags=-I/usr/local/src/ffmpeg_build/include --extra-ldflags=-L/usr/local/src/ffmpeg_build/lib --bindir=/usr/local/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfaac --enable-libfdk-aac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree libavutil 52. 51.100 / 52. 51.100 libavcodec 55. 41.100 / 55. 41.100 libavformat 55. 21.100 / 55. 21.100 libavdevice 55. 5.100 / 55. 5.100 libavfilter 3. 90.101 / 3. 90.101 libswscale 2. 5.101 / 2. 5.101 libswresample 0. 17.104 / 0. 17.104 libpostproc 52. 3.100 / 52. 3.100 Splitting the commandline. Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'. Reading option '-ss' ... matched as option 'ss' (set the start time offset) with argument '895.582'. Reading option '-i' ... matched as input file with argument 'http://media-cdn.twitch.tv/store81.media62/archives/2013-7-25/live_user_spe…'. Reading option '-t' ... matched as option 't' (record or transcode "duration" seconds of audio/video) with argument '24.825'. Reading option '-c' ... matched as option 'c' (codec name) with argument 'copy'. Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'. Reading option 'asdf.flv' ... matched as output file. Finished splitting the commandline. Parsing a group of options: global . Applying option loglevel (set logging level) with argument debug. Applying option y (overwrite output files) with argument 1. Successfully parsed a group of options. Parsing a group of options: input file http://media-cdn.twitch.tv/store81.media62/archives/2013-7-25/live_user_spe…. Applying option ss (set the start time offset) with argument 895.582. Successfully parsed a group of options. Opening an input file: http://media-cdn.twitch.tv/store81.media62/archives/2013-7-25/live_user_spe…. [http @ 0x32a6f00] request: GET /store81.media62/archives/2013-7-25/live_user_speeddemosarchivesda_1374791611.flv HTTP/1.1 User-Agent: Lavf/55.21.100 Accept: */* Range: bytes=0- Connection: close Host: media-cdn.twitch.tv [http @ 0x32a6f00] header='HTTP/1.1 206 Partial Content' [http @ 0x32a6f00] http_code=206 [http @ 0x32a6f00] header='Cache-Control: max-age=2592000' [http @ 0x32a6f00] header='Content-Type: video/x-flv' [http @ 0x32a6f00] header='Last-Modified: Sun, 27 Oct 2013 22:09:26 GMT' [http @ 0x32a6f00] header='Accept-Ranges: bytes,bytes' [http @ 0x32a6f00] header='Server: nginx' [http @ 0x32a6f00] header='Expires: Thu, 24 Apr 2014 23:15:58 GMT' [http @ 0x32a6f00] header='Date: Wed, 26 Mar 2014 01:47:48 GMT' [http @ 0x32a6f00] header='Content-Length: 147384426' [http @ 0x32a6f00] header='Content-Range: bytes 0-147384425/147384426' [http @ 0x32a6f00] header='Connection: close' [http @ 0x32a6f00] header='' [flv @ 0x32a6940] Format flv probed with size=2048 and score=100 [flv @ 0x32a6940] File position before avformat_find_stream_info() is 13 [flv @ 0x32a6940] Stream discovered after head already parsed [http @ 0x32a6f00] request: GET /store81.media62/archives/2013-7-25/live_user_speeddemosarchivesda_1374791611.flv HTTP/1.1 User-Agent: Lavf/55.21.100 Accept: */* Range: bytes=147384422- Connection: close Host: media-cdn.twitch.tv [http @ 0x32a6f00] header='HTTP/1.1 206 Partial Content' [http @ 0x32a6f00] http_code=206 [http @ 0x32a6f00] header='Cache-Control: max-age=2592000' [http @ 0x32a6f00] header='Content-Type: video/x-flv' [http @ 0x32a6f00] header='Last-Modified: Sun, 27 Oct 2013 22:09:26 GMT' [http @ 0x32a6f00] header='Accept-Ranges: bytes,bytes' [http @ 0x32a6f00] header='Server: nginx' [http @ 0x32a6f00] header='Expires: Thu, 24 Apr 2014 23:15:58 GMT' [http @ 0x32a6f00] header='Date: Wed, 26 Mar 2014 01:47:48 GMT' [http @ 0x32a6f00] header='Content-Length: 4' [http @ 0x32a6f00] header='Content-Range: bytes 147384422-147384425/147384426' [http @ 0x32a6f00] header='Connection: close' [http @ 0x32a6f00] header='' [http @ 0x32a6f00] request: GET /store81.media62/archives/2013-7-25/live_user_speeddemosarchivesda_1374791611.flv HTTP/1.1 User-Agent: Lavf/55.21.100 Accept: */* Range: bytes=147383960- Connection: close Host: media-cdn.twitch.tv [http @ 0x32a6f00] header='HTTP/1.1 206 Partial Content' [http @ 0x32a6f00] http_code=206 [http @ 0x32a6f00] header='Cache-Control: max-age=2592000' [http @ 0x32a6f00] header='Content-Type: video/x-flv' [http @ 0x32a6f00] header='Last-Modified: Sun, 27 Oct 2013 22:09:26 GMT' [http @ 0x32a6f00] header='Accept-Ranges: bytes,bytes' [http @ 0x32a6f00] header='Server: nginx' [http @ 0x32a6f00] header='Expires: Thu, 24 Apr 2014 23:15:58 GMT' [http @ 0x32a6f00] header='Date: Wed, 26 Mar 2014 01:47:48 GMT' [http @ 0x32a6f00] header='Content-Length: 466' [http @ 0x32a6f00] header='Content-Range: bytes 147383960-147384425/147384426' [http @ 0x32a6f00] header='Connection: close' [http @ 0x32a6f00] header='' [http @ 0x32a6f00] request: GET /store81.media62/archives/2013-7-25/live_user_speeddemosarchivesda_1374791611.flv HTTP/1.1 User-Agent: Lavf/55.21.100 Accept: */* Range: bytes=24- Connection: close Host: media-cdn.twitch.tv [http @ 0x32a6f00] header='HTTP/1.1 206 Partial Content' [http @ 0x32a6f00] http_code=206 [http @ 0x32a6f00] header='Cache-Control: max-age=2592000' [http @ 0x32a6f00] header='Content-Type: video/x-flv' [http @ 0x32a6f00] header='Last-Modified: Sun, 27 Oct 2013 22:09:26 GMT' [http @ 0x32a6f00] header='Accept-Ranges: bytes,bytes' [http @ 0x32a6f00] header='Server: nginx' [http @ 0x32a6f00] header='Expires: Thu, 24 Apr 2014 23:15:58 GMT' [http @ 0x32a6f00] header='Date: Wed, 26 Mar 2014 01:47:48 GMT' [http @ 0x32a6f00] header='Content-Length: 147384402' [http @ 0x32a6f00] header='Content-Range: bytes 24-147384425/147384426' [http @ 0x32a6f00] header='Connection: close' [http @ 0x32a6f00] header='' [h264 @ 0x32ab700] no picture [aac @ 0x32abec0] skip whole frame, skip left: 0 [flv @ 0x32a6940] All info found rfps: 59.583333 0.018855 rfps: 59.666667 0.011118 rfps: 59.750000 0.005454 rfps: 59.833333 0.001862 rfps: 59.916667 0.000344 rfps: 60.000000 0.000899 Last message repeated 1 times rfps: 59.940060 0.000291 Last message repeated 1 times [flv @ 0x32a6940] File position after avformat_find_stream_info() is 122532 [http @ 0x32a6f00] request: GET /store81.media62/archives/2013-7-25/live_user_speeddemosarchivesda_1374791611.flv HTTP/1.1 User-Agent: Lavf/55.21.100 Accept: */* Range: bytes=5132- Connection: close Host: media-cdn.twitch.tv [http @ 0x32a6f00] header='HTTP/1.1 206 Partial Content' [http @ 0x32a6f00] http_code=206 [http @ 0x32a6f00] header='Cache-Control: max-age=2592000' [http @ 0x32a6f00] header='Content-Type: video/x-flv' [http @ 0x32a6f00] header='Last-Modified: Sun, 27 Oct 2013 22:09:26 GMT' [http @ 0x32a6f00] header='Accept-Ranges: bytes,bytes' [http @ 0x32a6f00] header='Server: nginx' [http @ 0x32a6f00] header='Expires: Thu, 24 Apr 2014 23:15:58 GMT' [http @ 0x32a6f00] header='Date: Wed, 26 Mar 2014 01:47:48 GMT' [http @ 0x32a6f00] header='Content-Length: 147379294' [http @ 0x32a6f00] header='Content-Range: bytes 5132-147384425/147384426' [http @ 0x32a6f00] header='Connection: close' [http @ 0x32a6f00] header='' [http @ 0x32a6f00] request: GET /store81.media62/archives/2013-7-25/live_user_speeddemosarchivesda_1374791611.flv HTTP/1.1 User-Agent: Lavf/55.21.100 Accept: */* Range: bytes=96297954- Connection: close Host: media-cdn.twitch.tv [http @ 0x32a6f00] header='HTTP/1.1 206 Partial Content' [http @ 0x32a6f00] http_code=206 [http @ 0x32a6f00] header='Cache-Control: max-age=2592000' [http @ 0x32a6f00] header='Content-Type: video/x-flv' [http @ 0x32a6f00] header='Last-Modified: Sun, 27 Oct 2013 22:09:26 GMT' [http @ 0x32a6f00] header='Accept-Ranges: bytes,bytes' [http @ 0x32a6f00] header='Server: nginx' [http @ 0x32a6f00] header='Expires: Thu, 24 Apr 2014 23:15:58 GMT' [http @ 0x32a6f00] header='Date: Wed, 26 Mar 2014 01:50:23 GMT' [http @ 0x32a6f00] header='Content-Length: 51086472' [http @ 0x32a6f00] header='Content-Range: bytes 96297954-147384425/147384426' [http @ 0x32a6f00] header='Connection: close' [http @ 0x32a6f00] header='' Input #0, flv, from 'http://media-cdn.twitch.tv/store81.media62/archives/2013-7-25/live_user_spe…': Duration: 00:20:32.67, start: 0.000000, bitrate: 956 kb/s Stream #0:0, 41, 1/1000: Video: h264 (High), yuv420p, 1280x720, 83417/10000000, 59.94 tbr, 1k tbn, 119.88 tbc Stream #0:1, 57, 1/1000: Audio: aac, 44100 Hz, stereo, fltp Stream #0:2, 1, 1/1000: Data: none, 0/1 Successfully opened the file. Parsing a group of options: output file asdf.flv. Applying option t (record or transcode "duration" seconds of audio/video) with argument 24.825. Applying option c (codec name) with argument copy. Successfully parsed a group of options. Opening an output file: asdf.flv. Successfully opened the file. Output #0, flv, to 'asdf.flv': Metadata: encoder : Lavf55.21.100 Stream #0:0, 0, 1/1000: Video: h264 ([7][0][0][0] / 0x0007), yuv420p, 1280x720, 1/1000, q=2-31, 1k tbn, 1k tbc Stream #0:1, 0, 1/1000: Audio: aac ([10][0][0][0] / 0x000A), 44100 Hz, stereo Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:1 -> #0:1 (copy) Press [q] to stop, [?] for help No more output streams to write to, finishing. frame= 750 fps=0.0 q=-1.0 Lsize= 4285kB time=00:00:24.84 bitrate=1413.0kbits/s video:3792kB audio:460kB subtitle:0 global headers:0kB muxing overhead 0.771462% 0 frames successfully decoded, 0 decoding errors [AVIOContext @ 0x32ac6e0] Statistics: 3 seeks, 1828 writeouts [AVIOContext @ 0x32b3360] Statistics: 102207166 bytes read, 5 seeks ffmpeg -loglevel debug -ss 895.582 -i -t 24.825 -c copy -y asdf.flv 0.40s user 0.56s system 0% cpu 2:35.95 total % ls -l asdf.flv -rw-rw-r-- 1 chris eng 4387923 Mar 25 18:50 asdf.flv

1 1

ffmpeg desktop streaming artifacts
by Marien Frederic GSN 26 Mar '14

26 Mar '14

Hi all, We are trying to stream a PC desktop to a TV by using FFMPEG, Serviio and DLNA (Mainly to stream the UI of an application). We managed to get the desktop on the television without any big issues but now we notice some artifacts during the streaming. It looks like the artifacts are delta frames which are misplaced on the television screen. For example the UI of the app we are streaming contains 6 grey squares next to each other. When we notice artifacts it often happens that we see a part of those gray squares appearing in other sections of the screen. To stream the desktop we are using the following command: ffmpeg -f dshow -r 5 -i video="UScreenCapture" -vf crop=1920:1080:0:0 -vcodec mpeg4 -q:v 1 -f mpegts udp://127.0.0.1:6666 We tried VLC before and we didn't experience any artifacts when use VLC but the program crashed often, that's why we want to use ffmpeg without vlc. I'm using the 64 bit version of ffmpeg and uscreencapture. This stream is captured and passed through to the tv via the serviio media server. My questions are: Is there anything wrong with the command which could introduce the artifacts we are seeing? When the receives a key frame it is ok for a few seconds. Is it possible to only use key frames instead of key and delta frames? Thanks in advance! Greetings, Frederic ___________________________________________ SNOX Automation bvba, 2630 Aartselaar, Belgium INTERNET CONFIDENTIALITY STATEMENTS This electronic mail message, including attachments, is a confidential communication exclusively between SNOX Automation and the intended recipient(s) indicated as the addressee(s). It contains information that is private and may be proprietary or may be covered by legal professional privilege. If you receive this message in any form and you are not the intended recipient you must not review, use, discuss or disseminate it. We would be grateful if you could contact the sender upon receipt and in any event you should destroy this message without delay. Anything contained in this message that is not connected with the business of SNOX Automation or its affiliates is neither endorsed by nor is the liability of this company.

1 0

ingestion.
by Leonard Bogard 26 Mar '14

26 Mar '14

Is it possible to use ffserver in conjunction with ffmpeg as an ingestion service that transmits a still image to another server (like Wowza) until it receives an (possibly authenticated) stream? I'm looking to do something similar in concept to the "DJ" port with the SHOUTcast v2 Transcoder, the transcoder sends a pre-configured playlist of music until a "DJ" connects to it, then it sends the DJ's audio until the DJ disconnects, and then the Transcoder goes back to it's pre-configured playlist.

1 0

DVD-Subtitles in matroska container converted by ffmpeg won't disappear playing with vlc
by Bernd Butscheidt 26 Mar '14

26 Mar '14

I created this file: http://www.file-upload.net/download-8617894/00001.mkv.html from a TV record with the help of ffmpeg. Now I want to keep only one audio track and the subtitles doing this: ffmpeg -i 00001.ts -map 0:0 -map 0:2 -map 0:3 -vcodec copy -acodec copy -scodec dvdsub 00001.mkv The subtitles of the original file http://www.file-upload.net/download-8617897/00001.ts.html are shown fine by any player I tested so far. With the converted one: http://www.file-upload.net/download-8617894/00001.mkv.html ffplay and mplayer seem to show the subtitle track as intended. CMPlayer/mpv didn't show the subtitles, but the devs made a fix recently, commenting that this is only a work around of a fault done by the conversion of ffmpeg: https://bbs.archlinux.org/viewtopic.php?pid=1381609#p1381609 With vlc subtitles just seem to be put one over another and do not disappear at least when the next is to be shown. There I was told that the fault isn't with vlc: https://trac.videolan.org/vlc/ticket/10667 But apparently, the mkv file behaves differently to the source ts formatted file. I want to ask if this could be taken into consideration and/or this should be reported on https://trac.ffmpeg.org. Complete uncut output: /mnt/sda7/ffmpeg_neu/ffmpeg_bin/bin/ffmpeg -i 00001.ts -map 0:0 -map 0:2 -map 0:3 -vcodec copy -acodec copy -scodec dvdsub 00001.mkv ffmpeg version N-61680-g6abc56e Copyright (c) 2000-2014 the FFmpeg developers built on Mar 22 2014 09:38:38 with gcc 4.8.2 (GCC) 20140206 (prerelease) configuration: --enable-libzvbi --enable-gpl --enable-libx264 --enable-nonfree --enable-libmp3lame --enable-libfaac --enable-version3 --enable-pic --enable-postproc --prefix=/mnt/sda7/ffmpeg_neu/ffmpeg_bin libavutil 52. 67.100 / 52. 67.100 libavcodec 55. 52.102 / 55. 52.102 libavformat 55. 34.101 / 55. 34.101 libavdevice 55. 11.100 / 55. 11.100 libavfilter 4. 3.100 / 4. 3.100 libswscale 2. 5.102 / 2. 5.102 libswresample 0. 18.100 / 0. 18.100 libpostproc 52. 3.100 / 52. 3.100 [NULL @ 0x1a80be0] start time is not set in estimate_timings_from_pts [mpegts @ 0x1a7a9a0] PES packet size mismatch Last message repeated 1 times Input #0, mpegts, from '00001.ts': Duration: 00:00:58.57, start: 6416.993956, bitrate: 9365 kb/s Program 132 Stream #0:0[0x901]: Video: h264 (Main) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 50 tbr, 90k tbn, 50 tbc Stream #0:1[0x903](NAR): Audio: mp2 ([4][0][0][0] / 0x0004), 48000 Hz, stereo, s16p, 182 kb/s Stream #0:2[0x902](eng): Audio: ac3 ([6][0][0][0] / 0x0006), 48000 Hz, stereo, fltp, 384 kb/s Stream #0:3[0x904](eng): Subtitle: dvb_subtitle ([6][0][0][0] / 0x0006) Output #0, matroska, to '00001.mkv': Metadata: encoder : Lavf55.34.101 Stream #0:0: Video: h264 (H264 / 0x34363248), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 25 fps, 1k tbn, 90k tbc Stream #0:1(eng): Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo, 384 kb/s Stream #0:2(eng): Subtitle: dvd_subtitle (dvdsub) Stream mapping: Stream #0:0 -> #0:0 (copy) Stream #0:2 -> #0:1 (copy) Stream #0:3 -> #0:2 (dvbsub -> dvdsub) Press [q] to stop, [?] for help [mpegts @ 0x1a7a9a0] PES packet size mismatchme=00:00:40.23 bitrate=8723.4kbits/s frame= 2885 fps=0.0 q=-1.0 Lsize= 63727kB time=00:00:58.43 bitrate=8933.9kbits/s video:60898kB audio:2699kB subtitle:92 data:0 global headers:0kB muxing overhead 0.058140%

2 5

Keeping unset channel mask after amerge filter
by Tobias Rapp 26 Mar '14

26 Mar '14

Hi, when I use the "amerge" filer to merge a file-set with video file plus mutiple audio files the resulting (AVI) output file always has a channel mask. This is also mentioned in the documentation[1]: """ [...] the channel layout of the output will be the default value corresponding to the total number of channels. """ I tried to unset the channel mask with "aformat" but failed. Is there a way to unset the channel mask? Regards, Tobias Links: [1] https://ffmpeg.org/ffmpeg-filters.html#amerge

2 2

Input/output error for MJPEG (with examples)
by Renato Santos 26 Mar '14

26 Mar '14

Hello again, I found this MJPEG stream http://217.197.157.7:7070/mjpg/video.mjpg in a list on internet, and i'm testing ffmpeg and my software. When I pass it do ffmpeg, it reports Input/output error and stop, /home/renato/ffmpeg/ffmpeg-HEAD-e2742d6/ffmpeg -loglevel debug -an -f mjpeg -timeout 10 -user-agent 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0)' -i 'http://217.197.157.7:7070/mjpg/video.mjpg' -vf scale="'if(gt(a,4/3),320,-1)':'if(gt(a,4/3),-1,240)'" -vframes 1 /tmp/snap_22342527856247655680.jpg ffmpeg version 2.1.git-e2742d6 Copyright (c) 2000-2013 the FFmpeg developers built on Dec 16 2013 13:41:29 with gcc 4.7 (Ubuntu/Linaro 4.7.2-2ubuntu1) configuration: --enable-gpl --enable-libx264 --prefix='~/ffmpeg/' libavutil 52. 58.100 / 52. 58.100 libavcodec 55. 45.101 / 55. 45.101 libavformat 55. 22.100 / 55. 22.100 libavdevice 55. 5.102 / 55. 5.102 libavfilter 3. 92.100 / 3. 92.100 libswscale 2. 5.101 / 2. 5.101 libswresample 0. 17.104 / 0. 17.104 libpostproc 52. 3.100 / 52. 3.100 Splitting the commandline. Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'. Reading option '-an' ... matched as option 'an' (disable audio) with argument '1'. Reading option '-f' ... matched as option 'f' (force format) with argument 'mjpeg'. Reading option '-timeout' ... matched as AVOption 'timeout' with argument '10'. Reading option '-user-agent' ... matched as AVOption 'user-agent' with argument 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0)'. Reading option '-i' ... matched as input file with argument ' http://217.197.157.7:7070/mjpg/video.mjpg'. Reading option '-vf' ... matched as option 'vf' (set video filters) with argument 'scale='if(gt(a,4/3),320,-1)':'if(gt(a,4/3),-1,240)''. Reading option '-vframes' ... matched as option 'vframes' (set the number of video frames to record) with argument '1'. Reading option '/tmp/snap_22342527856247655680.jpg' ... matched as output file. Finished splitting the commandline. Parsing a group of options: global . Applying option loglevel (set logging level) with argument debug. Successfully parsed a group of options. Parsing a group of options: input file http://217.197.157.7:7070/mjpg/video.mjpg. Applying option an (disable audio) with argument 1. Applying option f (force format) with argument mjpeg. Successfully parsed a group of options. Opening an input file: http://217.197.157.7:7070/mjpg/video.mjpg. [http @ 0x98d84a0] request: GET /mjpg/video.mjpg HTTP/1.1 User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0) Accept: */* Range: bytes=0- Connection: close Host: 217.197.157.7:7070 http://217.197.157.7:7070/mjpg/video.mjpg: Input/output error But.. I can play it on Chrome and I can save each frame using this script too: http://pastebin.com/CcjLfngC use strict; use LWP::UserAgent; LWP::UserAgent->new->get("http://217.197.157.7:7070/mjpg/video.mjpg", ':content_cb' => \&got_data); # happiness my $buffer = ''; my $boundary; my $x = 0; sub got_data { my ($str, $ref) = @_; $boundary = do { my $z = $ref->headers->{'content-type'} =~ /boundary=(.+)\;?/; $1} if !defined $boundary; $buffer .= $str; next unless $boundary; #print $buffer; while( 1+(my $end = index($buffer, $boundary))) { my $ret = substr $buffer, 0, $end, ''; handle_part($ret) if $ret ne '--'; substr $buffer, 0, length($boundary), ''; } } my $idx = 0; sub handle_part { my $data = shift; return unless length $data; # clear some headers $data =~ s/^.+Content-Length\: \d+//s; $data =~ s/^.+Content-type\: image\/jpeg//s; $data =~ s/^(\r|\n)+//; $idx++; print "$idx ".time."\n"; open my $fh, '>:raw', "/tmp/images-$idx.jpg"; print $fh $data; #print $data; close $fh; } Images on /tmp/images-XXX.jpg. The headers are fine, I guess: Cache-Control: no-cache Connection: close Pragma: no-cache Content-Type: multipart/x-mixed-replace; boundary=myboundary Expires: Thu, 01 Dec 1994 16:00:00 GMT Client-Peer: 217.197.157.7:7070 Client-Response-Num: 1 then each segment with --myboundary Content-Type: image/jpeg Content-Length: *44363* *<binary>* So, like my last e-mail i added '-timeout 10', i removed it and tried again: renato@ood:/projetos/aware/etamu/lost-n-found$ time /home/renato/ffmpeg/ffmpeg-HEAD-e2742d6/ffmpeg -loglevel debug -an -f mjpeg -user-agent 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0)' -i 'http://217.197.157.7:7070/mjpg/video.mjpg' -vf scale="'if(gt(a,4/3),320,-1)':'if(gt(a,4/3),-1,240)'" -vframes 1 /tmp/snap_22342527856247655680.jpg ffmpeg version 2.1.git-e2742d6 Copyright (c) 2000-2013 the FFmpeg developers built on Dec 16 2013 13:41:29 with gcc 4.7 (Ubuntu/Linaro 4.7.2-2ubuntu1) configuration: --enable-gpl --enable-libx264 --prefix='~/ffmpeg/' libavutil 52. 58.100 / 52. 58.100 libavcodec 55. 45.101 / 55. 45.101 libavformat 55. 22.100 / 55. 22.100 libavdevice 55. 5.102 / 55. 5.102 libavfilter 3. 92.100 / 3. 92.100 libswscale 2. 5.101 / 2. 5.101 libswresample 0. 17.104 / 0. 17.104 libpostproc 52. 3.100 / 52. 3.100 Splitting the commandline. Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'. Reading option '-an' ... matched as option 'an' (disable audio) with argument '1'. Reading option '-f' ... matched as option 'f' (force format) with argument 'mjpeg'. Reading option '-user-agent' ... matched as AVOption 'user-agent' with argument 'Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0)'. Reading option '-i' ... matched as input file with argument ' http://217.197.157.7:7070/mjpg/video.mjpg'. Reading option '-vf' ... matched as option 'vf' (set video filters) with argument 'scale='if(gt(a,4/3),320,-1)':'if(gt(a,4/3),-1,240)''. Reading option '-vframes' ... matched as option 'vframes' (set the number of video frames to record) with argument '1'. Reading option '/tmp/snap_22342527856247655680.jpg' ... matched as output file. Finished splitting the commandline. Parsing a group of options: global . Applying option loglevel (set logging level) with argument debug. Successfully parsed a group of options. Parsing a group of options: input file http://217.197.157.7:7070/mjpg/video.mjpg. Applying option an (disable audio) with argument 1. Applying option f (force format) with argument mjpeg. Successfully parsed a group of options. Opening an input file: http://217.197.157.7:7070/mjpg/video.mjpg. [http @ 0x97894c0] request: GET /mjpg/video.mjpg HTTP/1.1 User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0) Accept: */* Range: bytes=0- Connection: close Host: 217.197.157.7:7070 [http @ 0x97894c0] header='HTTP/1.0 200 OK' [http @ 0x97894c0] http_code=200 [http @ 0x97894c0] header='Cache-Control: no-cache' [http @ 0x97894c0] header='Pragma: no-cache' [http @ 0x97894c0] header='Expires: Thu, 01 Dec 1994 16:00:00 GMT' [http @ 0x97894c0] header='Connection: close' [http @ 0x97894c0] header='Content-Type: multipart/x-mixed-replace; boundary=myboundary' [http @ 0x97894c0] header='' [mjpeg @ 0x9788e80] Before avformat_find_stream_info() pos: 0 bytes read:2705 seeks:0 [mjpeg @ 0x9793100] marker=d8 avail_size_in_buf=44461 [mjpeg @ 0x9793100] marker parser used 0 bytes (0 bits) [mjpeg @ 0x9793100] marker=e0 avail_size_in_buf=44459 [mjpeg @ 0x9793100] marker parser used 16 bytes (128 bits) [mjpeg @ 0x9793100] marker=fe avail_size_in_buf=44441 [mjpeg @ 0x9793100] marker parser used 15 bytes (120 bits) [mjpeg @ 0x9793100] marker=fe avail_size_in_buf=44424 [mjpeg @ 0x9793100] marker parser used 15 bytes (120 bits) [mjpeg @ 0x9793100] marker=db avail_size_in_buf=44407 [mjpeg @ 0x9793100] index=0 [mjpeg @ 0x9793100] qscale[0]: 4 [mjpeg @ 0x9793100] marker parser used 67 bytes (536 bits) [mjpeg @ 0x9793100] marker=db avail_size_in_buf=44338 [mjpeg @ 0x9793100] index=1 [mjpeg @ 0x9793100] qscale[1]: 9 [mjpeg @ 0x9793100] marker parser used 67 bytes (536 bits) [mjpeg @ 0x9793100] marker=c0 avail_size_in_buf=44269 [mjpeg @ 0x9793100] sof0: picture: 800x600 [mjpeg @ 0x9793100] component 0 2:2 id: 0 quant:0 [mjpeg @ 0x9793100] component 1 1:1 id: 1 quant:1 [mjpeg @ 0x9793100] component 2 1:1 id: 2 quant:1 [mjpeg @ 0x9793100] pix fmt id 22111100 [mjpeg @ 0x9793100] marker parser used 17 bytes (136 bits) [mjpeg @ 0x9793100] marker=c4 avail_size_in_buf=44250 [mjpeg @ 0x9793100] class=0 index=0 nb_codes=12 [mjpeg @ 0x9793100] marker parser used 31 bytes (248 bits) [mjpeg @ 0x9793100] marker=c4 avail_size_in_buf=44217 [mjpeg @ 0x9793100] class=1 index=0 nb_codes=251 [mjpeg @ 0x9793100] marker parser used 181 bytes (1448 bits) [mjpeg @ 0x9793100] marker=c4 avail_size_in_buf=44034 [mjpeg @ 0x9793100] class=0 index=1 nb_codes=12 [mjpeg @ 0x9793100] marker parser used 31 bytes (248 bits) [mjpeg @ 0x9793100] marker=c4 avail_size_in_buf=44001 [mjpeg @ 0x9793100] class=1 index=1 nb_codes=251 [mjpeg @ 0x9793100] marker parser used 181 bytes (1448 bits) [mjpeg @ 0x9793100] escaping removed 286 bytes [mjpeg @ 0x9793100] marker=da avail_size_in_buf=43818 [mjpeg @ 0x9793100] component: 0 [mjpeg @ 0x9793100] component: 1 [mjpeg @ 0x9793100] component: 2 [mjpeg @ 0x9793100] marker parser used 43531 bytes (348244 bits) [mjpeg @ 0x9793100] marker=d9 avail_size_in_buf=67 [mjpeg @ 0x9793100] decode frame unused 67 bytes [mjpeg @ 0x9788e80] Probe buffer size limit of 5000000 bytes reached [mjpeg @ 0x9788e80] After avformat_find_stream_info() pos: 5010305 bytes read:5013601 seeks:0 frames:111 Input #0, mjpeg, from 'http://217.197.157.7:7070/mjpg/video.mjpg': Duration: N/A, bitrate: N/A Stream #0:0, 111, 1/1200000: Video: mjpeg, yuvj420p(pc), 800x600 [SAR 1:1 DAR 4:3], 1/25, 25 fps, 25 tbr, 1200k tbn, 25 tbc Successfully opened the file. Parsing a group of options: output file /tmp/snap_22342527856247655680.jpg. Applying option vf (set video filters) with argument scale='if(gt(a,4/3),320,-1)':'if(gt(a,4/3),-1,240)'. Applying option vframes (set the number of video frames to record) with argument 1. Successfully parsed a group of options. Opening an output file: /tmp/snap_22342527856247655680.jpg. Successfully opened the file. detected 8 logical cores [Parsed_scale_0 @ 0x9797ee0] Setting 'w' to value 'if(gt(a,4/3),320,-1)' [Parsed_scale_0 @ 0x9797ee0] Setting 'h' to value 'if(gt(a,4/3),-1,240)' [Parsed_scale_0 @ 0x9797ee0] Setting 'flags' to value '0x4' [Parsed_scale_0 @ 0x9797ee0] w:if(gt(a,4/3),320,-1) h:if(gt(a,4/3),-1,240) flags:'0x4' interl:0 [graph 0 input from stream 0:0 @ 0x9798180] Setting 'video_size' to value '800x600' [graph 0 input from stream 0:0 @ 0x9798180] Setting 'pix_fmt' to value '12' [graph 0 input from stream 0:0 @ 0x9798180] Setting 'time_base' to value '1/1200000' [graph 0 input from stream 0:0 @ 0x9798180] Setting 'pixel_aspect' to value '1/1' [graph 0 input from stream 0:0 @ 0x9798180] Setting 'sws_param' to value 'flags=2' [graph 0 input from stream 0:0 @ 0x9798180] Setting 'frame_rate' to value '25/1' [graph 0 input from stream 0:0 @ 0x9798180] w:800 h:600 pixfmt:yuvj420p tb:1/1200000 fr:25/1 sar:1/1 sws_param:flags=2 [format @ 0x9799800] compat: called with args=[yuvj420p|yuvj422p|yuvj444p] [format @ 0x9799800] Setting 'pix_fmts' to value 'yuvj420p|yuvj422p|yuvj444p' [AVFilterGraph @ 0x9c2bd20] query_formats: 4 queried, 3 merged, 0 already done, 0 delayed [swscaler @ 0x9777080] deprecated pixel format used, make sure you did set range correctly [Parsed_scale_0 @ 0x9797ee0] w:800 h:600 fmt:yuvj420p sar:1/1 -> w:320 h:240 fmt:yuvj420p sar:1/1 flags:0x4 [mjpeg @ 0x97cd5c0] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9788aa0] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9cb3640] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9cd21c0] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9cf0d40] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9d0f8c0] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9d2e440] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9d4cfc0] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9797140] intra_quant_bias = 96 inter_quant_bias = 0 Output #0, image2, to '/tmp/snap_22342527856247655680.jpg': Metadata: encoder : Lavf55.22.100 Stream #0:0, 0, 1/90000: Video: mjpeg, yuvj420p, 320x240 [SAR 1:1 DAR 4:3], 1/25, q=2-31, 200 kb/s, 90k tbn, 25 tbc Stream mapping: Stream #0:0 -> #0:0 (mjpeg -> mjpeg) Press [q] to stop, [?] for help [mjpeg @ 0x9793100] marker=d8 avail_size_in_buf=44461 [mjpeg @ 0x9793100] marker parser used 0 bytes (0 bits) [mjpeg @ 0x9793100] marker=e0 avail_size_in_buf=44459 [mjpeg @ 0x9793100] marker parser used 16 bytes (128 bits) [mjpeg @ 0x9793100] marker=fe avail_size_in_buf=44441 [mjpeg @ 0x9793100] marker parser used 15 bytes (120 bits) [mjpeg @ 0x9793100] marker=fe avail_size_in_buf=44424 [mjpeg @ 0x9793100] marker parser used 15 bytes (120 bits) [mjpeg @ 0x9793100] marker=db avail_size_in_buf=44407 [mjpeg @ 0x9793100] index=0 [mjpeg @ 0x9793100] qscale[0]: 4 [mjpeg @ 0x9793100] marker parser used 67 bytes (536 bits) [mjpeg @ 0x9793100] marker=db avail_size_in_buf=44338 [mjpeg @ 0x9793100] index=1 [mjpeg @ 0x9793100] qscale[1]: 9 [mjpeg @ 0x9793100] marker parser used 67 bytes (536 bits) [mjpeg @ 0x9793100] marker=c0 avail_size_in_buf=44269 [mjpeg @ 0x9793100] sof0: picture: 800x600 [mjpeg @ 0x9793100] component 0 2:2 id: 0 quant:0 [mjpeg @ 0x9793100] component 1 1:1 id: 1 quant:1 [mjpeg @ 0x9793100] component 2 1:1 id: 2 quant:1 [mjpeg @ 0x9793100] pix fmt id 22111100 [mjpeg @ 0x9793100] marker parser used 17 bytes (136 bits) [mjpeg @ 0x9793100] marker=c4 avail_size_in_buf=44250 [mjpeg @ 0x9793100] class=0 index=0 nb_codes=12 [mjpeg @ 0x9793100] marker parser used 31 bytes (248 bits) [mjpeg @ 0x9793100] marker=c4 avail_size_in_buf=44217 [mjpeg @ 0x9793100] class=1 index=0 nb_codes=251 [mjpeg @ 0x9793100] marker parser used 181 bytes (1448 bits) [mjpeg @ 0x9793100] marker=c4 avail_size_in_buf=44034 [mjpeg @ 0x9793100] class=0 index=1 nb_codes=12 [mjpeg @ 0x9793100] marker parser used 31 bytes (248 bits) [mjpeg @ 0x9793100] marker=c4 avail_size_in_buf=44001 [mjpeg @ 0x9793100] class=1 index=1 nb_codes=251 [mjpeg @ 0x9793100] marker parser used 181 bytes (1448 bits) [mjpeg @ 0x9793100] escaping removed 286 bytes [mjpeg @ 0x9793100] marker=da avail_size_in_buf=43818 [mjpeg @ 0x9793100] component: 0 [mjpeg @ 0x9793100] component: 1 [mjpeg @ 0x9793100] component: 2 [mjpeg @ 0x9793100] marker parser used 43531 bytes (348244 bits) [mjpeg @ 0x9793100] marker=d9 avail_size_in_buf=67 [mjpeg @ 0x9793100] decode frame unused 67 bytes No more output streams to write to, finishing. [AVIOContext @ 0x9d89e80] Statistics: 0 seeks, 1 writeouts frame= 1 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.04 bitrate=N/A video:11kB audio:0kB subtitle:0 global headers:0kB muxing overhead -100.194346% 1 frames successfully decoded, 0 decoding errors [AVIOContext @ 0x9792da0] Statistics: 5013601 bytes read, 0 seeks real 4m26.029s user 0m0.216s sys 0m0.112s Four minutes later (?!) the frame is saved! Guys, I really don't get that now! -- Saravá, Renato CRON http://www.renatocron.com/blog/ @renato_cron <http://twitter.com/#!/renato_cron>

2 6

FFmpeg licensing query
by tarun singhal 26 Mar '14

26 Mar '14

>From What I understand as per legal info provided by website, FFmpeg is based on LGPL, But what if I have cross-compiled ffmpeg on my own (without doing any changes in code) and have enabled GPL. My understanding is - now ffmpeg which I built is GPL based. And Only thing I cant do is re-distribute it. Rest all activities using that ffmpeg are totally fine be it personal or commecial. Regards, Tarun Singhal

2 2

Fwd: How -timeout option is affecting this? extract 1 frame from MJPEG very slow vs faster. 2m32.823s vs 0m2.303s
by Renato Santos 26 Mar '14

26 Mar '14

Hello, I use ffmpeg with -vframes 1 for testing if a MJPEG is working (1), to do it, i run: ffmpeg -loglevel debug -an -f mjpeg -i 'ADDRESS' -vf scale="'if(gt(a,4/3),320,-1)':'if(gt(a,4/3),-1,240)'" -vframes 1 /tmp/uhum.jpg Then it takes 2 minutes (at first I think that it was stoped, but it responded after a long time, so I tested again with timeout option and it take much lower time.) renato@ood:/projetos/aware/etamu/lost-n-found$ time /home/renato/ffmpeg/ffmpeg-HEAD-e2742d6/ffmpeg -loglevel debug -an -f mjpeg -timeout 10 -i 'http://admin:lala@postogasolina.dyndns.org:8081/videostream.cgi?rate=6&pass…' -vf scale="'if(gt(a,4/3),320,-1)':'if(gt(a,4/3),-1,240)'" -vframes 1 /tmp/uhum.jpg ffmpeg version 2.1.git-e2742d6 Copyright (c) 2000-2013 the FFmpeg developers built on Dec 16 2013 13:41:29 with gcc 4.7 (Ubuntu/Linaro 4.7.2-2ubuntu1) configuration: --enable-gpl --enable-libx264 --prefix='~/ffmpeg/' libavutil 52. 58.100 / 52. 58.100 libavcodec 55. 45.101 / 55. 45.101 libavformat 55. 22.100 / 55. 22.100 libavdevice 55. 5.102 / 55. 5.102 libavfilter 3. 92.100 / 3. 92.100 libswscale 2. 5.101 / 2. 5.101 libswresample 0. 17.104 / 0. 17.104 libpostproc 52. 3.100 / 52. 3.100 Splitting the commandline. Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'. Reading option '-an' ... matched as option 'an' (disable audio) with argument '1'. Reading option '-f' ... matched as option 'f' (force format) with argument 'mjpeg'. Reading option '-timeout' ... matched as AVOption 'timeout' with argument '10'. Reading option '-i' ... matched as input file with argument 'http://admin:lala@postogasolina.dyndns.org:8081/videostream.cgi?rate=6&pass…'. Reading option '-vf' ... matched as option 'vf' (set video filters) with argument 'scale='if(gt(a,4/3),320,-1)':'if(gt(a,4/3),-1,240)''. Reading option '-vframes' ... matched as option 'vframes' (set the number of video frames to record) with argument '1'. Reading option '/tmp/uhum.jpg' ... matched as output file. Finished splitting the commandline. Parsing a group of options: global . Applying option loglevel (set logging level) with argument debug. Successfully parsed a group of options. Parsing a group of options: input file http://admin:lala@postogasolina.dyndns.org:8081/videostream.cgi?rate=6&pass…. Applying option an (disable audio) with argument 1. Applying option f (force format) with argument mjpeg. Successfully parsed a group of options. Opening an input file: http://admin:lala@postogasolina.dyndns.org:8081/videostream.cgi?rate=6&pass…. [http @ 0x9f2e3a0] request: GET /videostream.cgi?rate=6&password=lala&pwd=lala&resolution=8&user=admin&usr=admin HTTP/1.1 User-Agent: Lavf/55.22.100 Accept: */* Range: bytes=0- Connection: close Host: postogasolina.dyndns.org:8081 [http @ 0x9f2e3a0] header='HTTP/1.1 200 OK' [http @ 0x9f2e3a0] http_code=200 [http @ 0x9f2e3a0] header='Server: Netwave IP Camera' [http @ 0x9f2e3a0] header='Date: Wed, 26 Mar 2014 05:45:29 GMT' [http @ 0x9f2e3a0] header='Accept-Ranges: bytes' [http @ 0x9f2e3a0] header='Connection: close' [http @ 0x9f2e3a0] header='Content-Type: multipart/x-mixed-replace;boundary=ipcamera' [http @ 0x9f2e3a0] header='' [mjpeg @ 0x9f2dde0] Before avformat_find_stream_info() pos: 0 bytes read:1400 seeks:0 [mjpeg @ 0x9f39080] marker=d8 avail_size_in_buf=15151 [mjpeg @ 0x9f39080] marker parser used 0 bytes (0 bits) [mjpeg @ 0x9f39080] marker=db avail_size_in_buf=15149 [mjpeg @ 0x9f39080] index=0 [mjpeg @ 0x9f39080] qscale[0]: 4 [mjpeg @ 0x9f39080] index=1 [mjpeg @ 0x9f39080] qscale[1]: 8 [mjpeg @ 0x9f39080] marker parser used 132 bytes (1056 bits) [mjpeg @ 0x9f39080] marker=c4 avail_size_in_buf=15015 [mjpeg @ 0x9f39080] class=0 index=0 nb_codes=12 [mjpeg @ 0x9f39080] class=0 index=1 nb_codes=12 [mjpeg @ 0x9f39080] class=1 index=0 nb_codes=251 [mjpeg @ 0x9f39080] class=1 index=1 nb_codes=251 [mjpeg @ 0x9f39080] marker parser used 418 bytes (3344 bits) [mjpeg @ 0x9f39080] marker=c0 avail_size_in_buf=14595 [mjpeg @ 0x9f39080] sof0: picture: 640x480 [mjpeg @ 0x9f39080] component 0 2:1 id: 0 quant:0 [mjpeg @ 0x9f39080] component 1 1:1 id: 1 quant:1 [mjpeg @ 0x9f39080] component 2 1:1 id: 2 quant:1 [mjpeg @ 0x9f39080] pix fmt id 21111100 [mjpeg @ 0x9f39080] marker parser used 17 bytes (136 bits) [mjpeg @ 0x9f39080] escaping removed 67 bytes [mjpeg @ 0x9f39080] marker=da avail_size_in_buf=14576 [mjpeg @ 0x9f39080] component: 0 [mjpeg @ 0x9f39080] component: 1 [mjpeg @ 0x9f39080] component: 2 [mjpeg @ 0x9f39080] marker parser used 14508 bytes (116061 bits) [mjpeg @ 0x9f39080] marker=d9 avail_size_in_buf=66 [mjpeg @ 0x9f39080] decode frame unused 66 bytes [mjpeg @ 0x9f2dde0] After avformat_find_stream_info() pos: 25200 bytes read:25200 seeks:0 frames:2 Input #0, mjpeg, from 'http://admin:lala@postogasolina.dyndns.org:8081/videostream.cgi?rate=6&pass…': Duration: N/A, bitrate: N/A Stream #0:0, 2, 1/1200000: Video: mjpeg, yuvj422p(pc), 640x480, 1/25, 25 tbr, 1200k tbn, 25 tbc Successfully opened the file. Parsing a group of options: output file /tmp/uhum.jpg. Applying option vf (set video filters) with argument scale='if(gt(a,4/3),320,-1)':'if(gt(a,4/3),-1,240)'. Applying option vframes (set the number of video frames to record) with argument 1. Successfully parsed a group of options. Opening an output file: /tmp/uhum.jpg. Successfully opened the file. detected 8 logical cores [Parsed_scale_0 @ 0x9f4c480] Setting 'w' to value 'if(gt(a,4/3),320,-1)' [Parsed_scale_0 @ 0x9f4c480] Setting 'h' to value 'if(gt(a,4/3),-1,240)' [Parsed_scale_0 @ 0x9f4c480] Setting 'flags' to value '0x4' [Parsed_scale_0 @ 0x9f4c480] w:if(gt(a,4/3),320,-1) h:if(gt(a,4/3),-1,240) flags:'0x4' interl:0 [graph 0 input from stream 0:0 @ 0x9f27e40] Setting 'video_size' to value '640x480' [graph 0 input from stream 0:0 @ 0x9f27e40] Setting 'pix_fmt' to value '13' [graph 0 input from stream 0:0 @ 0x9f27e40] Setting 'time_base' to value '1/1200000' [graph 0 input from stream 0:0 @ 0x9f27e40] Setting 'pixel_aspect' to value '0/1' [graph 0 input from stream 0:0 @ 0x9f27e40] Setting 'sws_param' to value 'flags=2' [graph 0 input from stream 0:0 @ 0x9f27e40] Setting 'frame_rate' to value '25/1' [graph 0 input from stream 0:0 @ 0x9f27e40] w:640 h:480 pixfmt:yuvj422p tb:1/1200000 fr:25/1 sar:0/1 sws_param:flags=2 [format @ 0x9f4ca80] compat: called with args=[yuvj420p|yuvj422p|yuvj444p] [format @ 0x9f4ca80] Setting 'pix_fmts' to value 'yuvj420p|yuvj422p|yuvj444p' [AVFilterGraph @ 0x9f27e00] query_formats: 4 queried, 3 merged, 0 already done, 0 delayed [swscaler @ 0x9f21fe0] deprecated pixel format used, make sure you did set range correctly [Parsed_scale_0 @ 0x9f4c480] w:640 h:480 fmt:yuvj422p sar:0/1 -> w:320 h:240 fmt:yuvj422p sar:0/1 flags:0x4 [mjpeg @ 0x9f44380] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9f2c3a0] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9f83520] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9fa1ea0] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9fc0a40] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9fdf5c0] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9ffe140] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0xa01ccc0] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9f3a260] intra_quant_bias = 96 inter_quant_bias = 0 Output #0, image2, to '/tmp/uhum.jpg': Metadata: encoder : Lavf55.22.100 Stream #0:0, 0, 1/90000: Video: mjpeg, yuvj422p, 320x240, 1/25, q=2-31, 200 kb/s, 90k tbn, 25 tbc Stream mapping: Stream #0:0 -> #0:0 (mjpeg -> mjpeg) Press [q] to stop, [?] for help [mjpeg @ 0x9f39080] marker=d8 avail_size_in_buf=15151 [mjpeg @ 0x9f39080] marker parser used 0 bytes (0 bits) [mjpeg @ 0x9f39080] marker=db avail_size_in_buf=15149 [mjpeg @ 0x9f39080] index=0 [mjpeg @ 0x9f39080] qscale[0]: 4 [mjpeg @ 0x9f39080] index=1 [mjpeg @ 0x9f39080] qscale[1]: 8 [mjpeg @ 0x9f39080] marker parser used 132 bytes (1056 bits) [mjpeg @ 0x9f39080] marker=c4 avail_size_in_buf=15015 [mjpeg @ 0x9f39080] class=0 index=0 nb_codes=12 [mjpeg @ 0x9f39080] class=0 index=1 nb_codes=12 [mjpeg @ 0x9f39080] class=1 index=0 nb_codes=251 [mjpeg @ 0x9f39080] class=1 index=1 nb_codes=251 [mjpeg @ 0x9f39080] marker parser used 418 bytes (3344 bits) [mjpeg @ 0x9f39080] marker=c0 avail_size_in_buf=14595 [mjpeg @ 0x9f39080] sof0: picture: 640x480 [mjpeg @ 0x9f39080] component 0 2:1 id: 0 quant:0 [mjpeg @ 0x9f39080] component 1 1:1 id: 1 quant:1 [mjpeg @ 0x9f39080] component 2 1:1 id: 2 quant:1 [mjpeg @ 0x9f39080] pix fmt id 21111100 [mjpeg @ 0x9f39080] marker parser used 17 bytes (136 bits) [mjpeg @ 0x9f39080] escaping removed 67 bytes [mjpeg @ 0x9f39080] marker=da avail_size_in_buf=14576 [mjpeg @ 0x9f39080] component: 0 [mjpeg @ 0x9f39080] component: 1 [mjpeg @ 0x9f39080] component: 2 [mjpeg @ 0x9f39080] marker parser used 14508 bytes (116061 bits) [mjpeg @ 0x9f39080] marker=d9 avail_size_in_buf=66 [mjpeg @ 0x9f39080] decode frame unused 66 bytes No more output streams to write to, finishing. [AVIOContext @ 0xa059e20] Statistics: 0 seeks, 1 writeouts frame= 1 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.04 bitrate=N/A video:7kB audio:0kB subtitle:0 global headers:0kB muxing overhead -100.294393% 1 frames successfully decoded, 0 decoding errors [AVIOContext @ 0x9f38cc0] Statistics: 25200 bytes read, 0 seeks real 0m2.303s user 0m0.008s sys 0m0.028s renato@ood:/projetos/aware/etamu/lost-n-found$ renato@ood:/projetos/aware/etamu/lost-n-found$ renato@ood:/projetos/aware/etamu/lost-n-found$ renato@ood:/projetos/aware/etamu/lost-n-found$ renato@ood:/projetos/aware/etamu/lost-n-found$ renato@ood:/projetos/aware/etamu/lost-n-found$ renato@ood:/projetos/aware/etamu/lost-n-found$ time /home/renato/ffmpeg/ffmpeg-HEAD-e2742d6/ffmpeg -loglevel debug -an -f mjpeg -i 'http://admin:lala@postogasolina.dyndns.org:8081/videostream.cgi?rate=6&pass…' -vf scale="'if(gt(a,4/3),320,-1)':'if(gt(a,4/3),-1,240)'" -vframes 1 /tmp/uhum2.jpgffmpeg version 2.1.git-e2742d6 Copyright (c) 2000-2013 the FFmpeg developers built on Dec 16 2013 13:41:29 with gcc 4.7 (Ubuntu/Linaro 4.7.2-2ubuntu1) configuration: --enable-gpl --enable-libx264 --prefix='~/ffmpeg/' libavutil 52. 58.100 / 52. 58.100 libavcodec 55. 45.101 / 55. 45.101 libavformat 55. 22.100 / 55. 22.100 libavdevice 55. 5.102 / 55. 5.102 libavfilter 3. 92.100 / 3. 92.100 libswscale 2. 5.101 / 2. 5.101 libswresample 0. 17.104 / 0. 17.104 libpostproc 52. 3.100 / 52. 3.100 Splitting the commandline. Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'. Reading option '-an' ... matched as option 'an' (disable audio) with argument '1'. Reading option '-f' ... matched as option 'f' (force format) with argument 'mjpeg'. Reading option '-i' ... matched as input file with argument 'http://admin:lala@postogasolina.dyndns.org:8081/videostream.cgi?rate=6&pass…'. Reading option '-vf' ... matched as option 'vf' (set video filters) with argument 'scale='if(gt(a,4/3),320,-1)':'if(gt(a,4/3),-1,240)''. Reading option '-vframes' ... matched as option 'vframes' (set the number of video frames to record) with argument '1'. Reading option '/tmp/uhum2.jpg' ... matched as output file. Finished splitting the commandline. Parsing a group of options: global . Applying option loglevel (set logging level) with argument debug. Successfully parsed a group of options. Parsing a group of options: input file http://admin:lala@postogasolina.dyndns.org:8081/videostream.cgi?rate=6&pass…. Applying option an (disable audio) with argument 1. Applying option f (force format) with argument mjpeg. Successfully parsed a group of options. Opening an input file: http://admin:lala@postogasolina.dyndns.org:8081/videostream.cgi?rate=6&pass…. [http @ 0x9e4a2c0] request: GET /videostream.cgi?rate=6&password=lala&pwd=lala&resolution=8&user=admin&usr=admin HTTP/1.1 User-Agent: Lavf/55.22.100 Accept: */* Range: bytes=0- Connection: close Host: postogasolina.dyndns.org:8081 [http @ 0x9e4a2c0] header='HTTP/1.1 200 OK' [http @ 0x9e4a2c0] http_code=200 [http @ 0x9e4a2c0] header='Server: Netwave IP Camera' [http @ 0x9e4a2c0] header='Date: Wed, 26 Mar 2014 05:45:39 GMT' [http @ 0x9e4a2c0] header='Accept-Ranges: bytes' [http @ 0x9e4a2c0] header='Connection: close' [http @ 0x9e4a2c0] header='Content-Type: multipart/x-mixed-replace;boundary=ipcamera' [http @ 0x9e4a2c0] header='' [mjpeg @ 0x9e49d80] Before avformat_find_stream_info() pos: 0 bytes read:1400 seeks:0 [mjpeg @ 0x9e54fa0] marker=d8 avail_size_in_buf=15121 [mjpeg @ 0x9e54fa0] marker parser used 0 bytes (0 bits) [mjpeg @ 0x9e54fa0] marker=db avail_size_in_buf=15119 [mjpeg @ 0x9e54fa0] index=0 [mjpeg @ 0x9e54fa0] qscale[0]: 4 [mjpeg @ 0x9e54fa0] index=1 [mjpeg @ 0x9e54fa0] qscale[1]: 8 [mjpeg @ 0x9e54fa0] marker parser used 132 bytes (1056 bits) [mjpeg @ 0x9e54fa0] marker=c4 avail_size_in_buf=14985 [mjpeg @ 0x9e54fa0] class=0 index=0 nb_codes=12 [mjpeg @ 0x9e54fa0] class=0 index=1 nb_codes=12 [mjpeg @ 0x9e54fa0] class=1 index=0 nb_codes=251 [mjpeg @ 0x9e54fa0] class=1 index=1 nb_codes=251 [mjpeg @ 0x9e54fa0] marker parser used 418 bytes (3344 bits) [mjpeg @ 0x9e54fa0] marker=c0 avail_size_in_buf=14565 [mjpeg @ 0x9e54fa0] sof0: picture: 640x480 [mjpeg @ 0x9e54fa0] component 0 2:1 id: 0 quant:0 [mjpeg @ 0x9e54fa0] component 1 1:1 id: 1 quant:1 [mjpeg @ 0x9e54fa0] component 2 1:1 id: 2 quant:1 [mjpeg @ 0x9e54fa0] pix fmt id 21111100 [mjpeg @ 0x9e54fa0] marker parser used 17 bytes (136 bits) [mjpeg @ 0x9e54fa0] escaping removed 70 bytes [mjpeg @ 0x9e54fa0] marker=da avail_size_in_buf=14546 [mjpeg @ 0x9e54fa0] component: 0 [mjpeg @ 0x9e54fa0] component: 1 [mjpeg @ 0x9e54fa0] component: 2 [mjpeg @ 0x9e54fa0] marker parser used 14475 bytes (115794 bits) [mjpeg @ 0x9e54fa0] marker=d9 avail_size_in_buf=66 [mjpeg @ 0x9e54fa0] decode frame unused 66 bytes [mjpeg @ 0x9e49d80] max_analyze_duration 5000000 reached at 5000000 microseconds [mjpeg @ 0x9e49d80] After avformat_find_stream_info() pos: 1938758 bytes read:1939134 seeks:0 frames:127 Input #0, mjpeg, from 'http://admin:lala@postogasolina.dyndns.org:8081/videostream.cgi?rate=6&pass…': Duration: N/A, bitrate: N/A Stream #0:0, 127, 1/1200000: Video: mjpeg, yuvj422p(pc), 640x480, 1/25, 25 fps, 25 tbr, 1200k tbn, 25 tbc Successfully opened the file. Parsing a group of options: output file /tmp/uhum2.jpg. Applying option vf (set video filters) with argument scale='if(gt(a,4/3),320,-1)':'if(gt(a,4/3),-1,240)'. Applying option vframes (set the number of video frames to record) with argument 1. Successfully parsed a group of options. Opening an output file: /tmp/uhum2.jpg. Successfully opened the file. detected 8 logical cores [Parsed_scale_0 @ 0x9e5d1a0] Setting 'w' to value 'if(gt(a,4/3),320,-1)' [Parsed_scale_0 @ 0x9e5d1a0] Setting 'h' to value 'if(gt(a,4/3),-1,240)' [Parsed_scale_0 @ 0x9e5d1a0] Setting 'flags' to value '0x4' [Parsed_scale_0 @ 0x9e5d1a0] w:if(gt(a,4/3),320,-1) h:if(gt(a,4/3),-1,240) flags:'0x4' interl:0 [graph 0 input from stream 0:0 @ 0x9e55580] Setting 'video_size' to value '640x480' [graph 0 input from stream 0:0 @ 0x9e55580] Setting 'pix_fmt' to value '13' [graph 0 input from stream 0:0 @ 0x9e55580] Setting 'time_base' to value '1/1200000' [graph 0 input from stream 0:0 @ 0x9e55580] Setting 'pixel_aspect' to value '0/1' [graph 0 input from stream 0:0 @ 0x9e55580] Setting 'sws_param' to value 'flags=2' [graph 0 input from stream 0:0 @ 0x9e55580] Setting 'frame_rate' to value '25/1' [graph 0 input from stream 0:0 @ 0x9e55580] w:640 h:480 pixfmt:yuvj422p tb:1/1200000 fr:25/1 sar:0/1 sws_param:flags=2 [format @ 0x9e68340] compat: called with args=[yuvj420p|yuvj422p|yuvj444p] [format @ 0x9e68340] Setting 'pix_fmts' to value 'yuvj420p|yuvj422p|yuvj444p' [AVFilterGraph @ 0x9e55640] query_formats: 4 queried, 3 merged, 0 already done, 0 delayed [swscaler @ 0xa04a960] deprecated pixel format used, make sure you did set range correctly [Parsed_scale_0 @ 0x9e5d1a0] w:640 h:480 fmt:yuvj422p sar:0/1 -> w:320 h:240 fmt:yuvj422p sar:0/1 flags:0x4 [mjpeg @ 0x9e43ea0] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9e3c260] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0xa07d920] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0xa09c3e0] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0xa0baf60] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0xa0d9ae0] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0xa0f8660] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0xa1171e0] intra_quant_bias = 96 inter_quant_bias = 0 [mjpeg @ 0x9e5baa0] intra_quant_bias = 96 inter_quant_bias = 0 Output #0, image2, to '/tmp/uhum2.jpg': Metadata: encoder : Lavf55.22.100 Stream #0:0, 0, 1/90000: Video: mjpeg, yuvj422p, 320x240, 1/25, q=2-31, 200 kb/s, 90k tbn, 25 tbc Stream mapping: Stream #0:0 -> #0:0 (mjpeg -> mjpeg) Press [q] to stop, [?] for help [mjpeg @ 0x9e54fa0] marker=d8 avail_size_in_buf=15121 [mjpeg @ 0x9e54fa0] marker parser used 0 bytes (0 bits) [mjpeg @ 0x9e54fa0] marker=db avail_size_in_buf=15119 [mjpeg @ 0x9e54fa0] index=0 [mjpeg @ 0x9e54fa0] qscale[0]: 4 [mjpeg @ 0x9e54fa0] index=1 [mjpeg @ 0x9e54fa0] qscale[1]: 8 [mjpeg @ 0x9e54fa0] marker parser used 132 bytes (1056 bits) [mjpeg @ 0x9e54fa0] marker=c4 avail_size_in_buf=14985 [mjpeg @ 0x9e54fa0] class=0 index=0 nb_codes=12 [mjpeg @ 0x9e54fa0] class=0 index=1 nb_codes=12 [mjpeg @ 0x9e54fa0] class=1 index=0 nb_codes=251 [mjpeg @ 0x9e54fa0] class=1 index=1 nb_codes=251 [mjpeg @ 0x9e54fa0] marker parser used 418 bytes (3344 bits) [mjpeg @ 0x9e54fa0] marker=c0 avail_size_in_buf=14565 [mjpeg @ 0x9e54fa0] sof0: picture: 640x480 [mjpeg @ 0x9e54fa0] component 0 2:1 id: 0 quant:0 [mjpeg @ 0x9e54fa0] component 1 1:1 id: 1 quant:1 [mjpeg @ 0x9e54fa0] component 2 1:1 id: 2 quant:1 [mjpeg @ 0x9e54fa0] pix fmt id 21111100 [mjpeg @ 0x9e54fa0] marker parser used 17 bytes (136 bits) [mjpeg @ 0x9e54fa0] escaping removed 70 bytes [mjpeg @ 0x9e54fa0] marker=da avail_size_in_buf=14546 [mjpeg @ 0x9e54fa0] component: 0 [mjpeg @ 0x9e54fa0] component: 1 [mjpeg @ 0x9e54fa0] component: 2 [mjpeg @ 0x9e54fa0] marker parser used 14475 bytes (115794 bits) [mjpeg @ 0x9e54fa0] marker=d9 avail_size_in_buf=66 [mjpeg @ 0x9e54fa0] decode frame unused 66 bytes No more output streams to write to, finishing. [AVIOContext @ 0xa154340] Statistics: 0 seeks, 1 writeouts frame= 1 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.04 bitrate=N/A video:7kB audio:0kB subtitle:0 global headers:0kB muxing overhead -100.294039% 1 frames successfully decoded, 0 decoding errors [AVIOContext @ 0x9e54c60] Statistics: 1939134 bytes read, 0 seeks real 2m32.823s user 0m0.096s sys 0m0.080s Comparing both with meld, I see few bytes changes, but without timeout, how finish the connection is: *[mjpeg @ 0x9e49d80] max_analyze_duration 5000000 reached at 5000000 microseconds* left=without timeout, image of meld @ http://i.imgur.com/clgHarL.png i'm setting timeout from now, first because it's a good ideia do that! but is interesting known *why* this delay happen when it is not set. 1: I only call if for working URLs that at least responded with a JPEG some seconds before, but that's not the case. -- Saravá, Renato CRON http://www.renatocron.com/blog/ @renato_cron <http://twitter.com/#!/renato_cron>

1 0

libx265
by Object 26 Mar '14

26 Mar '14

I want to know the default profile~~~~ It always prompt "Cannot open libx265 encoder."

2 2

issue with DTS 5.1 to wav 2.0 (sort of bug report?)
by roger21 25 Mar '14

25 Mar '14

hello, when trying to convert a 5.1 audio source into wav i got a weird result, the mix sounds like only two channel are kept and it is very low here the original command : ffmpeg.exe -i "source.mkv" -c:a pcm_s16le -ac 2 "audio.wav" when i do the same conversion to mp3 or vorbis i got a fully ok result, the sound is clear and loud, i got the reverb effects and all ffmpeg.exe -i "source.mkv" -c:a libmp3lame -r:a 48K -b:a 192K -compression_level 0 -ac 2 "audio.mp3" so as a workaround i used -af pan and the result is all fine ffmpeg.exe -i "source.mkv" -c:a pcm_s16le -af "pan=stereo|FL=FL+0.5*FC+SL+0.5*LFE|FR=FR+0.5FC+SR+0.5*LFE" "audio.wav" but as the doc said i shouldn't use it for normal downmixing so not really a question again, just a concern or something (i don't think i did something wrong in my command line but that is always a possibility) thanks

3 3