February 2018 - ffmpeg-user - lists.ffmpeg.org

All the video captures are made at a resolution of 176x144
by DiegoUG 27 Feb '18

27 Feb '18

Hello, I'm doing a capture of an image from the docker using my web cam, but the docker is doing it at a resolution of 176x144 and outside of the docker in my localhost it takes it to 640x360, in both it's the same installation, I do not know it's happening: Docker ----------------------------------------------------------------------------------- # ffmpeg -r 1 -f v4l2 -s 720x480 -i /dev/video0 -vframes 1 menu%d.jpg ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 7 (Debian 7.3.0-3) configuration: --disable-debug --disable-doc --disable-ffplay --enable-shared --enable-avresample --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-gpl --enable-libass --enable-libfreetype --enable-libvidstab --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx265 --enable-libxvid --enable-libx264 --enable-nonfree --enable-openssl --enable-libfdk_aac --enable-libkvazaar --enable-postproc --enable-small --enable-version3 --extra-cflags=-I/opt/ffmpeg/include --extra-ldflags=-L/opt/ffmpeg/lib --extra-libs=-ldl --prefix=/opt/ffmpeg libavutil 55. 78.100 / 55. 78.100 libavcodec 57.107.100 / 57.107.100 libavformat 57. 83.100 / 57. 83.100 libavdevice 57. 10.100 / 57. 10.100 libavfilter 6.107.100 / 6.107.100 libavresample 3. 7. 0 / 3. 7. 0 libswscale 4. 8.100 / 4. 8.100 libswresample 2. 9.100 / 2. 9.100 libpostproc 54. 7.100 / 54. 7.100 [video4linux2,v4l2 @ 0x55cbd71f70a0] The V4L2 driver changed the video from 720x480 to 176x144 [video4linux2,v4l2 @ 0x55cbd71f70a0] The driver changed the time per frame from 1/1 to 1/5 Input #0, video4linux2,v4l2, from '/dev/video0': Duration: N/A, start: 59614.860847, bitrate: 2027 kb/s Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 176x144, 2027 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc Stream mapping: Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native)) Press [q] to stop, [?] for help [swscaler @ 0x55cbd7209280] deprecated pixel format used, make sure you did set range correctly Output #0, image2, to 'menu%d.jpg': Metadata: encoder : Lavf57.83.100 Stream #0:0: Video: mjpeg, yuvj422p(pc), 176x144, q=2-31, 200 kb/s, 1 fps, 1 tbn, 1 tbc Metadata: encoder : Lavc57.107.100 mjpeg Side data: cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1 frame= 1 fps=0.0 q=2.7 Lsize=N/A time=00:00:01.00 bitrate=N/A speed= 424x video:3kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown --------------------------------------------------------------------------------------------- local -------------------------------------------------------------------------------------- # ffmpeg -r 1 -f v4l2 -s 720x480 -i /dev/video0 -vframes 1 menu%d.jpg ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 7.3.0 (GCC) configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-avisynth --enable-avresample --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libass --enable-libbluray --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-shared --enable-version3 --enable-omx libavutil 55. 78.100 / 55. 78.100 libavcodec 57.107.100 / 57.107.100 libavformat 57. 83.100 / 57. 83.100 libavdevice 57. 10.100 / 57. 10.100 libavfilter 6.107.100 / 6.107.100 libavresample 3. 7. 0 / 3. 7. 0 libswscale 4. 8.100 / 4. 8.100 libswresample 2. 9.100 / 2. 9.100 libpostproc 54. 7.100 / 54. 7.100 [video4linux2,v4l2 @ 0x55c87b781a40] The V4L2 driver changed the video from 720x480 to 640x480 [video4linux2,v4l2 @ 0x55c87b781a40] The driver changed the time per frame from 1/1 to 1/15 Input #0, video4linux2,v4l2, from '/dev/video0': Duration: N/A, start: 59593.137905, bitrate: 73728 kb/s Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 73728 kb/s, 15 fps, 15 tbr, 1000k tbn, 1000k tbc Stream mapping: Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native)) Press [q] to stop, [?] for help [swscaler @ 0x55c87b7935e0] deprecated pixel format used, make sure you did set range correctly Output #0, image2, to 'menu%d.jpg': Metadata: encoder : Lavf57.83.100 Stream #0:0: Video: mjpeg, yuvj422p(pc), 640x480, q=2-31, 200 kb/s, 1 fps, 1 tbn, 1 tbc Metadata: encoder : Lavc57.107.100 mjpeg Side data: cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1 frame= 1 fps=0.0 q=4.9 Lsize=N/A time=00:00:01.00 bitrate=N/A speed= 178x video:21kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown --------------------------------------------------------------------------------------------- I checked how the camera was detected and I saw a difference, but I do not know why Docker ----------------------------------------------------------------------------------- # ffmpeg -f v4l2 -list_formats all -i /dev/video0 ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 7 (Debian 7.3.0-3) configuration: --disable-debug --disable-doc --disable-ffplay --enable-shared --enable-avresample --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-gpl --enable-libass --enable-libfreetype --enable-libvidstab --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx265 --enable-libxvid --enable-libx264 --enable-nonfree --enable-openssl --enable-libfdk_aac --enable-libkvazaar --enable-postproc --enable-small --enable-version3 --extra-cflags=-I/opt/ffmpeg/include --extra-ldflags=-L/opt/ffmpeg/lib --extra-libs=-ldl --prefix=/opt/ffmpeg libavutil 55. 78.100 / 55. 78.100 libavcodec 57.107.100 / 57.107.100 libavformat 57. 83.100 / 57. 83.100 libavdevice 57. 10.100 / 57. 10.100 libavfilter 6.107.100 / 6.107.100 libavresample 3. 7. 0 / 3. 7. 0 libswscale 4. 8.100 / 4. 8.100 libswresample 2. 9.100 / 2. 9.100 libpostproc 54. 7.100 / 54. 7.100 [video4linux2,v4l2 @ 0x55e122701f60] Raw : yuyv422 : YUYV 4:2:2 : 160x90 160x120 176x144 [video4linux2,v4l2 @ 0x55e122701f60] Compressed: h264 : H.264 : 640x480 160x90 160x120 176x144 320x180 320x240 352x288 432x240 640x360 800x448 800x600 864x480 960x720 1024x576 1280x720 [video4linux2,v4l2 @ 0x55e122701f60] Compressed: mjpeg : Motion-JPEG : 640x480 160x90 160x120 176x144 320x180 320x240 352x288 432x240 640x360 --------------------------------------------------------------------------------------------- local -------------------------------------------------------------------------------------- # ffmpeg -f v4l2 -list_formats all -i /dev/video0 ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 7.3.0 (GCC) configuration: --prefix=/usr --disable-debug --disable-static --disable-stripping --enable-avisynth --enable-avresample --enable-fontconfig --enable-gmp --enable-gnutls --enable-gpl --enable-ladspa --enable-libass --enable-libbluray --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libiec61883 --enable-libmodplug --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-shared --enable-version3 --enable-omx libavutil 55. 78.100 / 55. 78.100 libavcodec 57.107.100 / 57.107.100 libavformat 57. 83.100 / 57. 83.100 libavdevice 57. 10.100 / 57. 10.100 libavfilter 6.107.100 / 6.107.100 libavresample 3. 7. 0 / 3. 7. 0 libswscale 4. 8.100 / 4. 8.100 libswresample 2. 9.100 / 2. 9.100 libpostproc 54. 7.100 / 54. 7.100 [video4linux2,v4l2 @ 0x55b84fec19c0] Raw : yuyv422 : YUYV 4:2:2 : 640x480 320x180 320x240 352x288 424x240 640x360 848x480 960x540 1280x720 [video4linux2,v4l2 @ 0x55b84fec19c0] Compressed: mjpeg : Motion-JPEG : 640x480 320x180 320x240 352x288 424x240 640x360 848x480 960x540 1280x720 --------------------------------------------------------------------------------------------- -- *Diego Alonso Uribe Gamez* ------------------------------ *Desarrollador web* Twitter: @DiegoUG <http://www.twitter.com/DiegoUG> Google+: +DiegoAlonsoUribeGamez <https://plus.google.com/+DiegoAlonsoUribeGamez> ------------------------------

4 8

Add time code AND a watermark in one pass
by Kevin Duffey 27 Feb '18

27 Feb '18

Hi all, I have figured out from various sources how to add a watermark using a png file. Works well enough. What I also want to do is add timecode at 00:00:00:00 to my video as a text overlay. I have tried a few variations with the filter_complex, but I cant seem to get past any number of issues. In particular I get an issue with both text and a text file.. though I am never loading a text file, when trying to use drawtext. This is on a windows machine, though I suspect other than some of the batch syntax, it would be the same call on linux or mac. In particular I am trying to convert a directory of MOV DNxHR encoded videos to H.265, with the watermark AND timecode added. I think it would not be hard to add them in two passes.. e.g. add timecode first pass with copy mode, to keep it as DNxHR, then 2nd pass add watermark and convert to H.265 with lower resolution. I was hoping, however, to do it all in one pass, so as to save a lot of time. Here is what I have, which fails with Cannot find a valid font for the family Sans. Even though I specify the font file, and have tried by using \\ and \\\ as well. One time I was able to get past that, though I dont recall how now, and got the issue of the using both text and a text file with drawtext. Any help would be greatly appreciated. Naturally the watermark.png is the watermark image. My source DNxHR is 4K. Here I am specifying h.264, though I would like to render to H.265 if possible... and assuming yahoo accept it as an upload format. for /R %%a in ("*.mov") do ffmpeg -i "%%a" -i watermark.png -filter_complex "[2:v]scale=4096x2160 [ovrl],[1:v][ovrl]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2; drawtext=fontfile='C:\\Windows\\Fonts||arial.ttf':fontsize=15:timecode='00\:00\:00\:00':r=24:x=(w-tw)/2:y=h-(2*lh):fontcolor=white" -s 720x480 -c:v libx264 -preset ultrafast -crf 20 d:\encoded\%%~na.mp4 Thank you.

4 7

I'm writing a tutorial involving ffmpeg - could you please fact-check?
by Pičugins Arsenijs 27 Feb '18

27 Feb '18

Hi! I'm writing an article detailing streaming to Twitch from a web camera, using ffmpeg. I tried to explain the ffmpeg command-line I'm using, however, as I don't know ffmpeg that well, my understanding of the command-line itself is limited. Could you please see if there's anything obviously (or non-obviously) wrong with the following text? > First, let's cover a simple streaming case - no sound involved, just video. We have a USB > camera (available as /dev/video0), and we have a Twitch RTMP URL, which we > should send our stream to. A basic ffmpeg command-line that does the job of is > as follows: > > ffmpeg -f v4l2 -s "$INRES" -r "$FPS" -i /dev/video0 -vcodec h264_omx -g $GOP > -keyint_min $FPS -b:v $CBR -minrate "100k" -maxrate $CBR -pix_fmt yuv420p > -bufsize "500k" -preset "veryfast" -f flv > "rtmp://$SERVER.twitch.tv/app/$STREAM_KEY" > > That's a lot of parameters for a single command! Let's go through it so that > you understand what's going on. First, here's the breakdown of all parts this > command-line consists of: > > ffmpeg {global options} -f {input type} {input options} -i {input} {codec} > {codec options} -f {output type} {output} > > We're only using one global option - "-hide-banner", which tells ffmpeg not to > print its version information on start. Our webcam is /dev/video0 - in your > case, it might end with another number (say, you're using a laptop with a > webcam). To capture video from the webcam, we're using the Video4Linux system > and the corresponding ffmpeg plugin called "v4l2", and we tell it the > resolution to use and FPS (frames per second) that we want. Twitch requires > that we compress our video as H.264 - this would usually be a CPU-intensive > task, but Raspberry Pi has hardware H264 encoding support. We can get that > support if we use the h264_omx ffmpeg plugin. > > Even though compression means we don't send full frames all the time, we still > need to send a full frame once in a while - packets can get lost and glitches > can happen. A frame sent for the image synchronization purpose is called a > keyframe - the "-g" parameter tells how often keyframes will be made (say, $GOP > is double the $FPS, then a keyframe will be formed each 2 seconds), and the > "-keyint_min" parameter allows additional keyframes to appear if necessary > (say, the video changes rapidly) This explains the "-g $GOP -keyint_min $FPS" > part. Now, what about "-b:v $CBR -minrate "100k" -maxrate $CBR"? These are the > h264_omx codec parameters, and they restrict the bitrate of the resulting > stream - bitrate is, in our case, how much data we're sending per second. > > ... [a long not-ffmpeg-related explanation of what bitrates mean and why we need > a constant bitrate for Twitch] > > After all the bitrate-related parameters, we have parameters defining the color > encoding scheme (Twitch requires the YUV420 scheme) and buffer size - the > buffer in question is the one ffmpeg uses to check whether bitrate is constant > enough; setting your "bufsize" to the same value as your bitrate is a good > starting point. The last parameter is the compression quality - as in, how much > time should be spent on compression. The "fast"-er the preset, the less time is > spent compressing and the more bandwidth will be taken by your video - you have > options like "veryslow", "slow", "medium", "fast" and "veryfast", and some more > in between. I'm sorry if this request is taken as asking for too big of a favour (full disclosure: I'm getting paid to write this). I just really, really would hate to explain things in a wrong way and push it onto the readers, and I hope you can help make a ffmpeg streaming tutorial that explains things well (which, in my experience, is a rare occurence). Cheers! Arsenijs

3 2

Re- time stamping packets (pts & dts )
by Chetan Latte 27 Feb '18

27 Feb '18

Hi there ! I want to re-time stamp (pts & dts) live (24x7) stream (from TV providers), any options to do this using ffmpeg? -- -Chetan Latte @Cell: +91 9008229636 @LinkedIn page: https://www.linkedin.com/in/chetanlatte

2 3

Concat demux PTS discontinuity
by chanof 27 Feb '18

27 Feb '18

Hi everyone, i try to create the encoding suitable for mpeg-dash for my videos and concatenating them. Unfortunately, the concat demux generates a discrepancy of the PTS between videos concatenated: PTS time stamp: [...] 382.021016 384.021016 386.021016 the concat demux effect: 388.043047 390.043047 392.043047 [...] Command line for encoding is ffmpeg -y -i "$f" -i ../logo/logo.png -c:a aac -b:a 384k -ar 48000 -ac 2 -c:v libx264 -x264opts keyint=$GOP:min-keyint=$GOP:no-scenecut -bf 0 -r $FPSC -b:v 4800k -maxrate 4800k -bufsize 3000k -profile:v main -crf 22 -t $DUR -filter_complex "[0:v][1:v]overlay=main_w-overlay_w-10:10,scale=1920:1080,setsar=1" ../buffer/${NAME}-1080.mp4 Command line for concat is [code]ffmpeg -f concat -safe 0 -i 1080list.txt -t $TOTDUR -c copy ../output/1080set.mp4[/code] Videos for input has regular timestamp and starts from 0s How can I get a regular timestamp after concat demux process without performing another encoding (to avoid a process that is too long)? Thanks! Giammy -- Sent from: http://www.ffmpeg-archive.org/

1 0

Howto remove ffmpeg custom build
by ffmpeg＠bechhold.de 26 Feb '18

26 Feb '18

Hi, I have downloaded and build ffmpeg version N-90022-g50945482a7 from git for testing purposes. Now I would like to remove this version and use the one provided by my distro again. How can I completely remove the custom build git version? Thank you.

3 2

h264 and opus in mp4 container
by Vittalprasad 26 Feb '18

26 Feb '18

Hi All, >From below link i saw that mp4 container can have h264 as video codec and opus as audio codec. so i tried both codecs in to mp4 using ffmpeg, but external player like mplayer, vlc and kmp are failing to decode voice . i.e while playing mp4 file there is only video no voice. https://en.wikipedia.org/wiki/Comparison_of_video_container_formats Procedure followed using ffmpeg: 1. From sample mp4 file, i have separated audio(aac codec) and video(h264) in to different files . 2. aac trans-coded to opus 3. tried to merge video and audio(opus) in to single mp4 please let me know 1. whether ffmpeg support above codecs in single mp4 file or issue with external player . If anyone has mp4 file with h264 and opus codecs please provide me along with procedure to convert. -- Thanks & Regards Vittal Prasad B R 9066662597

4 3

Rip DVD with ffmpeg
by Adi Marvillo 24 Feb '18

24 Feb '18

Hello everyone - I am trying hard to rip my own DVD collection onto my fileserver but it doesn't work properly. Input-streams are: Stream #0:0: Data: dvd_nav_packet Stream #0:1: Video: mpeg2video (Main), yuv420p(tv, top first), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 90k tbc Stream #0:2: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s I made a list of the biggest files on the DVD which are supposed to be the entire film if concatenated. files adi@HOST ~/Videos $ cat mylist.txt file '/media/cdrom/video_ts/vts_09_1.vob' file '/media/cdrom/video_ts/vts_09_2.vob' file '/media/cdrom/video_ts/vts_09_3.vob' file '/media/cdrom/video_ts/vts_09_4.vob' file '/media/cdrom/video_ts/vts_09_5.vob' file '/media/cdrom/video_ts/vts_09_6.vob' the command to start ripping is this one: avconv -safe 0 -f concat -i mylist.txt -g 25 -keyint_min 3 -aspect "16:9" -map 0:1 -c:v libx264 -map 0:2 -c:a copy ~/Videos/testvideo.mkv Error message after half an hour: Non-monotonous DTS in output stream 0:1; previous: 17992, current: 17960; changing to 17992. This may result in incorrect timestamps in the output file. As much as I understood the options "-copyts -start_at_zero" sync the timestamp=1 with the beginning of the video-track and don't check it afterwards... So I thought, I'll bind the timestamp to the begin of the video-stream avconv -safe 0 -f concat -i mylist13.txt -g 25 -keyint_min 3 -vf "crop=x=22:out_w=in_w-52:y=4:out_h=in_h-6" -aspect "16:9" -map 0:1 -c:v libx264 -map 0:2 -c:a copy ~/Videos/testvideo.mkv -copyts -start_at_zero Same error again. I searched a lot and couldn't find any solution to my Problem - maybe anybody has an advice? Then I tried to encode the audio-track as a new: adi@HOST ~/Videos $ avconv -safe 0 -f concat -i mylist.txt -ss 00:18:15 -t 00:00:30 -g 25 -keyint_min 3 -vf "crop=x=22:out_w=in_w-52:y=4:out_h=in_h-6" -aspect "16:9" -map 0:1 -c:v libx264 -map 0:2 -c:a ac3_fixed ~/Videos/testvideo.mkv ffmpeg version 3.2.10-1~deb9u1 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 6.3.0 (Debian 6.3.0-18) 20170516 configuration: --prefix=/usr --extra-version='1~deb9u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared libavutil 55. 34.101 / 55. 34.101 libavcodec 57. 64.101 / 57. 64.101 libavformat 57. 56.101 / 57. 56.101 libavdevice 57. 1.100 / 57. 1.100 libavfilter 6. 65.100 / 6. 65.100 libavresample 3. 1. 0 / 3. 1. 0 libswscale 4. 2.100 / 4. 2.100 libswresample 2. 3.100 / 2. 3.100 libpostproc 54. 1.100 / 54. 1.100 Input #0, concat, from 'mylist13.txt': Duration: N/A, start: 0.000000, bitrate: N/A Stream #0:0: Data: dvd_nav_packet Stream #0:1: Video: mpeg2video (Main), yuv420p(tv, top first), 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 90k tbc Stream #0:2: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s [libx264 @ 0x5581377c0120] using SAR=760/501 [libx264 @ 0x5581377c0120] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.1 Cache64 [libx264 @ 0x5581377c0120] profile High, level 3.0 [libx264 @ 0x5581377c0120] 264 - core 148 r2748 97eaef2 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - 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 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=25 keyint_min=3 scenecut=40 intra_refresh=0 rc_lookahead=25 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 Output #0, matroska, to '/home/adi/Videos/testvideo.mkv': Metadata: encoder : Lavf57.56.101 Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv420p, 668x570 [SAR 760:501 DAR 16:9], q=-1--1, 25 fps, 1k tbn, 25 tbc Metadata: encoder : Lavc57.64.101 libx264 Side data: cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1 Stream #0:1: Audio: ac3 (ac3_fixed) ([0] [0][0] / 0x2000), 48000 Hz, stereo, s16p, 192 kb/s Metadata: encoder : Lavc57.64.101 ac3_fixed Stream mapping: Stream #0:1 -> #0:0 (mpeg2video (native) -> h264 (libx264)) Stream #0:2 -> #0:1 (ac3 (native) -> ac3 (ac3_fixed)) Press [q] to stop, [?] for help [ac3 @ 0x5581377be520] incomplete frame5kB time=00:00:17.33 bitrate=1873.5kbits/s speed=0.377x [ac3 @ 0x5581377be520] frame sync error Error while decoding stream #0:2: Invalid data found when processing input frame= 750 fps= 13 q=-1.0 Lsize= 7745kB time=00:00:30.01 bitrate=2114.1kbits/s speed=0.539x video:7026kB audio:705kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.181954% [libx264 @ 0x5581377c0120] frame I:36 Avg QP:23.15 size: 47989 [libx264 @ 0x5581377c0120] frame P:189 Avg QP:25.96 size: 14971 [libx264 @ 0x5581377c0120] frame B:525 Avg QP:28.48 size: 5022 [libx264 @ 0x5581377c0120] consecutive B-frames: 6.4% 0.5% 0.8% 92.3% [libx264 @ 0x5581377c0120] mb I I16..4: 4.2% 60.4% 35.4% [libx264 @ 0x5581377c0120] mb P I16..4: 0.9% 14.6% 5.3% P16..4: 39.4% 18.0% 10.9% 0.0% 0.0% skip:10.9% [libx264 @ 0x5581377c0120] mb B I16..4: 0.1% 2.4% 0.7% B16..8: 44.9% 8.7% 2.5% direct: 2.9% skip:37.7% L0:42.3% L1:47.3% BI:10.4% [libx264 @ 0x5581377c0120] 8x8 transform intra:66.9% inter:67.1% [libx264 @ 0x5581377c0120] coded y,uvDC,uvAC intra: 89.2% 81.3% 50.7% inter: 24.8% 17.9% 1.3% [libx264 @ 0x5581377c0120] i16 v,h,dc,p: 46% 9% 3% 42% [libx264 @ 0x5581377c0120] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 10% 11% 6% 9% 13% 7% 11% 7% [libx264 @ 0x5581377c0120] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 31% 11% 10% 6% 9% 12% 7% 9% 5% [libx264 @ 0x5581377c0120] i8c dc,h,v,p: 46% 15% 30% 9% [libx264 @ 0x5581377c0120] Weighted P-Frames: Y:0.5% UV:0.0% [libx264 @ 0x5581377c0120] ref P L0: 57.8% 19.6% 17.7% 4.9% 0.0% [libx264 @ 0x5581377c0120] ref B L0: 93.1% 5.6% 1.3% [libx264 @ 0x5581377c0120] ref B L1: 96.8% 3.2% [libx264 @ 0x5581377c0120] kb/s:1918.31 I'd like to rip my DVD to mkv video h264 audio copy chapter separations which are on the DVD should be in the mky as well # until now I haven't found a way to do this... What is your workflow to do this? Thanks a lot! Adi

4 6

Live streaming
by juan carlos rebate 23 Feb '18

23 Feb '18

I would like to know how to perform smooth and continuous transmissions, that is, I would like ffmpeg to allow connections even if it has no currents, I would also like to be able to indicate new video entries that are transmitted one after another without stopping the server, I do not want to use ffserver , but ffmpeg yes

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UDP to RDP multicast configuraton
by Rob Robinett 21 Feb '18

21 Feb '18

Hi, I am trying to use ffmpeg to accept a live UDP SPTS stream from a remote site and retransmit it on my LAN in RTP multicast format. The source contains one video and two audio in TS format and I want to simply repackage that stream into RTP. I can use VLC's streaming wizard to perform this conversion, but VLC is not supported in my target system while ffmpeg is running both here on my Mac and there. only my production linux server. In the attached session I can get ffmpeg to output my RTP multicast on 239.1.2.3:5004, but I have to filter out the audios and my VLC client complains that there is a missing SDP description in the stream. It seems to me that I am only a few cmd line arguments away from having this working and I would appreciate any help offered. Thanks, Rob ================================= rob@Robs-MBP:/Users/rob> ffmpeg -re -i 'udp://localhost:8433' -c copy -an -f rtp rtp://239.1.2.3:5004 ffmpeg version 3.3.4 Copyright (c) 2000-2017 the FFmpeg developers built with Apple LLVM version 8.1.0 (clang-802.0.42) configuration: --prefix=/usr/local/Cellar/ffmpeg/3.3.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-frei0r --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma --enable-libopenjpeg --disable-decoder=jpeg2000 --extra-cflags=-I/usr/local/Cellar/openjpeg/2.2.0/include/openjpeg-2.2 --enable-nonfree --enable-vda libavutil 55. 58.100 / 55. 58.100 libavcodec 57. 89.100 / 57. 89.100 libavformat 57. 71.100 / 57. 71.100 libavdevice 57. 6.100 / 57. 6.100 libavfilter 6. 82.100 / 6. 82.100 libavresample 3. 5. 0 / 3. 5. 0 libswscale 4. 6.100 / 4. 6.100 libswresample 2. 7.100 / 2. 7.100 libpostproc 54. 5.100 / 54. 5.100 [hevc @ 0x7fab1f810a00] PPS id out of range: 0 Last message repeated 1 times [hevc @ 0x7fab1f810a00] Error parsing NAL unit #3. Input #0, mpegts, from 'udp://localhost:8433': Duration: N/A, start: 51935.185522, bitrate: N/A Program 1 Stream #0:0[0x1e1]: Video: hevc (Main) ([36][0][0][0] / 0x0024), yuv420p(tv), 1920x1080 [SAR 1:1 DAR 16:9], Closed Captions, 29.97 fps, 29.97 tbr, 90k tbn, 29.97 tbc Stream #0:1[0x1e2](und): Audio: eac3 (ec-3 / 0x332D6365), 48000 Hz, 5.1(side), fltp, 192 kb/s Stream #0:2[0x1e3](und): Audio: aac (HE-AACv2) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 61 kb/s Stream #0:3[0x1f4]: Data: scte_35 Output #0, rtp, to 'rtp://239.1.2.3:5004': Metadata: encoder : Lavf57.71.100 Stream #0:0: Video: hevc (Main) ([36][0][0][0] / 0x0024), yuv420p(tv), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 29.97 fps, 29.97 tbr, 90k tbn, 29.97 tbc SDP: v=0 o=- 0 0 IN IP4 127.0.0.1 s=No Name c=IN IP4 239.1.2.3 t=0 0 a=tool:libavformat 57.71.100 m=video 5004 RTP/AVP 96 a=rtpmap:96 H265/90000 a=fmtp:96 sprop-vps=QAEMAf//IWAAAAMA8AAAAwAAAwB4EUDAAAD6QAAdTBQ=; sprop-sps=QgEBIWAAAAMA8AAAAwAAAwB4oAPAgBDllEWSRSWsBBQAAA+kAAHUwYBXucQABGMIAARjDkA=; sprop-pps=RAHArLwOyQ== Stream mapping: Stream #0:0 -> #0:0 (copy) Press [q] to stop, [?] for help key function= 30 q=-1.0 size= 7719kB time=00:00:27.32 bitrate=2313.9kbits/s speed= 1x ? show this help + increase verbosity - decrease verbosity c Send command to first matching filter supporting it C Send/Queue command to all matching filters D cycle through available debug modes h dump packets/hex press to cycle through the 3 states q quit s Show QP histogram frame= 1638 fps= 30 q=-1.0 size= 15565kB time=00:00:54.62 bitrate=2334.4kbits/s speed= 1x

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