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• ffmpeg: simple RTMP streaming

  2 April 2013, by sajad

  I am trying to launch up a rtmp transcoder server using ffmpeg; that receives udp MPEG-TS streams as input, transcodes it; and generates an rtmp output to a URL, that can be accessed by users to receive and play the rtmp stream. All these are expected to be performed in a LAN and the output be accessed by all users.

  1) First I don't know where the URL should point to. Is it enought to specify the IP of the system and some optional port? Is it neccessary that a program should be listening on that port?

  2) How I can play the stream on the URL?

  I use a linux ubuntu machine whith IP=10.1.1.229 and I want to transcode multicast stream on this URL: udp://@224.10.1.1:2001.

  here is the command used to transcode input stream and generate rtmp url "rtmp://10.1.1.229:2020".

  ffmpeg -y -f mpegts -i "udp://@224.10.1.1:2001" -re -vcodec libx264 -maxrate 700k -r 25 -s 640x360 -deinterlace -acodec libfaac -ab 64k -ac 1 -ar 44100 -f flv "rtmp://10.1.1.229:2020"

  and here is the command by which I am trying to play rtmp stream:

  ffplay rtmp://10.1.1.229:2020

  Any guidance would be helpfull. Thank you.

• Merge commit ’e74433a8e6fc00c8dbde293c97a3e45384c2c1d9’

  19 June 2014, by Michael Niedermayer

  Merge commit ’e74433a8e6fc00c8dbde293c97a3e45384c2c1d9’
  * commit ’e74433a8e6fc00c8dbde293c97a3e45384c2c1d9’:
  
    dsputil: Split clear_block*/fill_block* off into a separate context
  Conflicts:
  
  	configure
  
  	libavcodec/asvdec.c
  
  	libavcodec/dnxhddec.c
  
  	libavcodec/dnxhdenc.c
  
  	libavcodec/dsputil.h
  
  	libavcodec/eamad.c
  
  	libavcodec/intrax8.c
  
  	libavcodec/mjpegdec.c
  
  	libavcodec/ppc/dsputil_ppc.c
  
  	libavcodec/vc1dec.c
  
  	libavcodec/x86/dsputil_init.c
  
  	libavcodec/x86/dsputil_mmx.c
  Merged-by: Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] configure
  • [DH] libavcodec/4xm.c
  • [DH] libavcodec/Makefile
  • [DH] libavcodec/arm/Makefile
  • [DH] libavcodec/arm/blockdsp_arm.h
  • [DH] libavcodec/arm/blockdsp_init_arm.c
  • [DH] libavcodec/arm/blockdsp_init_neon.c
  • [DH] libavcodec/arm/blockdsp_neon.S
  • [DH] libavcodec/arm/dsputil_init_neon.c
  • [DH] libavcodec/arm/dsputil_neon.S
  • [DH] libavcodec/asv.h
  • [DH] libavcodec/asvdec.c
  • [DH] libavcodec/bink.c
  • [DH] libavcodec/blockdsp.c
  • [DH] libavcodec/blockdsp.h
  • [DH] libavcodec/cavs.c
  • [DH] libavcodec/cavs.h
  • [DH] libavcodec/cavsdec.c
  • [DH] libavcodec/dnxhddec.c
  • [DH] libavcodec/dnxhdenc.c
  • [DH] libavcodec/dnxhdenc.h
  • [DH] libavcodec/dsputil.c
  • [DH] libavcodec/dsputil.h
  • [DH] libavcodec/eamad.c
  • [DH] libavcodec/eatqi.c
  • [DH] libavcodec/g2meet.c
  • [DH] libavcodec/h261dec.c
  • [DH] libavcodec/h263.h
  • [DH] libavcodec/intrax8.c
  • [DH] libavcodec/ituh263dec.c
  • [DH] libavcodec/jvdec.c
  • [DH] libavcodec/mdec.c
  • [DH] libavcodec/mimic.c
  • [DH] libavcodec/mjpegdec.c
  • [DH] libavcodec/mjpegdec.h
  • [DH] libavcodec/mpeg12dec.c
  • [DH] libavcodec/mpeg4videodec.c
  • [DH] libavcodec/mpeg4videoenc.c
  • [DH] libavcodec/mpegvideo.c
  • [DH] libavcodec/mpegvideo.h
  • [DH] libavcodec/msmpeg4dec.c
  • [DH] libavcodec/ppc/Makefile
  • [DH] libavcodec/ppc/blockdsp.c
  • [DH] libavcodec/ppc/dsputil_altivec.c
  • [DH] libavcodec/ppc/dsputil_ppc.c
  • [DH] libavcodec/proresdec.h
  • [DH] libavcodec/proresdec2.c
  • [DH] libavcodec/vc1dec.c
  • [DH] libavcodec/wmv2.c
  • [DH] libavcodec/wmv2dec.c
  • [DH] libavcodec/x86/Makefile
  • [DH] libavcodec/x86/blockdsp_mmx.c
  • [DH] libavcodec/x86/dsputil_init.c
  • [DH] libavcodec/x86/dsputil_mmx.c
  • [DH] libavcodec/x86/dsputil_x86.h

• Script timing with FFMPEG and PHP

  23 June 2014, by egekhter

  I’m running into a very strange bug.

  Here’s my command console output:

  ffmpeg -i /transcodes/original/883_1000_1403436916_00001.MTS -y -vcodec libx264 -tune zerolatency -
  
  
  
  movflags faststart -crf 20 -profile:v high -level:v 4.0 -maxrate 6000k -bufsize 12000k -acodec libfdk_aac -b:a 256k /transcodes/883_1000_1403436916_00001_HQ.mp4 -vcodec libx264 -s 848x480 -tune zerolatency -movflags faststart -crf 25 -profile:v main -level:v 3.1 -maxrate 1400k -bufsize 1400k -acodec libfdk_aac -b:a 256k /transcodes/883_1000_1403436916_00001_SQ.mp4 -ss 166.16 -f image2 -vframes 1 /transcodes/883_1000_1403436916_00001_poster.jpg -ss 166.16 -f image2 -vf scale=-1:240 -vframes 1 /transcodes/883_1000_1403436916_00001_thumb.jpg
  
  
  
  ffmpeg version 2.2.git Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Jun 13 2014 02:40:27 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
  
    configuration: --prefix=/home/ubuntu/ffmpeg_build --extra-cflags=-I/home/ubuntu/ffmpeg_build/include --extra-ldflags=-L/home/ubuntu/ffmpeg_build/lib --bindir=/home/ubuntu/bin --extra-libs=-ldl --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree
  
    libavutil      52. 89.100 / 52. 89.100
  
    libavcodec     55. 66.100 / 55. 66.100
  
    libavformat    55. 43.100 / 55. 43.100
  
    libavdevice    55. 13.101 / 55. 13.101
  
    libavfilter     4.  8.100 /  4.  8.100
  
    libswscale      2.  6.100 /  2.  6.100
  
    libswresample   0. 19.100 /  0. 19.100
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Input #0, mpegts, from '/transcodes/original/883_1000_1403436916_00001.MTS':
  
    Duration: 00:04:11.74, start: 0.382511, bitrate: 25222 kb/s
  
    Program 1 
  
      Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc
  
      Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, 5.1(side), fltp, 384 kb/s
  
      Stream #0:2[0x1200]: Subtitle: hdmv_pgs_subtitle ([144][0][0][0] / 0x0090), 1920x1080
  
  [swscaler @ 0x216fe40] deprecated pixel format used, make sure you did set range correctly
  
  [swscaler @ 0x2188c20] deprecated pixel format used, make sure you did set range correctly
  
  [libx264 @ 0x2143e60] using SAR=1/1
  
  [libx264 @ 0x2143e60] MB rate (489110) > level limit (245760)
  
  [libx264 @ 0x2143e60] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
  [libx264 @ 0x2143e60] profile High, level 4.0
  
  [libx264 @ 0x2143e60] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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=2 lookahead_threads=2 sliced_threads=1 slices=2 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=0 rc=crf mbtree=0 crf=20.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=6000 vbv_bufsize=12000 crf_max=0.0 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
  
  [libx264 @ 0x2150680] using SAR=160/159
  
  [libx264 @ 0x2150680] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
  [libx264 @ 0x2150680] profile Main, level 3.1
  
  [libx264 @ 0x2150680] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=2 lookahead_threads=2 sliced_threads=1 slices=2 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=0 rc=crf mbtree=0 crf=25.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=1400 vbv_bufsize=1400 crf_max=0.0 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to '/transcodes/883_1000_1403436916_00001_HQ.mp4':
  
    Metadata:
  
      encoder         : Lavf55.43.100
  
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, max. 6000 kb/s, 59.94 fps, 60k tbn, 59.94 tbc
  
      Metadata:
  
        encoder         : Lavc55.66.100 libx264
  
      Stream #0:1: Audio: aac (libfdk_aac) ([64][0][0][0] / 0x0040), 48000 Hz, 5.1, s16, 256 kb/s
  
      Metadata:
  
        encoder         : Lavc55.66.100 libfdk_aac
  
  Output #1, mp4, to '/transcodes/883_1000_1403436916_00001_SQ.mp4':
  
    Metadata:
  
      encoder         : Lavf55.43.100
  
      Stream #1:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 848x480 [SAR 160:159 DAR 16:9], q=-1--1, max. 1400 kb/s, 59.94 fps, 60k tbn, 59.94 tbc
  
      Metadata:
  
        encoder         : Lavc55.66.100 libx264
  
      Stream #1:1: Audio: aac (libfdk_aac) ([64][0][0][0] / 0x0040), 48000 Hz, 5.1, s16, 256 kb/s
  
      Metadata:
  
        encoder         : Lavc55.66.100 libfdk_aac
  
  Output #2, image2, to '/transcodes/883_1000_1403436916_00001_poster.jpg':
  
    Metadata:
  
      encoder         : Lavf55.43.100
  
      Stream #2:0: Video: mjpeg, yuvj420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 59.94 fps, 90k tbn, 59.94 tbc
  
      Metadata:
  
        encoder         : Lavc55.66.100 mjpeg
  
  Output #3, image2, to '/transcodes/883_1000_1403436916_00001_thumb.jpg':
  
    Metadata:
  
      encoder         : Lavf55.43.100
  
      Stream #3:0: Video: mjpeg, yuvj420p, 427x240 [SAR 1280:1281 DAR 16:9], q=2-31, 200 kb/s, 59.94 fps, 90k tbn, 59.94 tbc
  
      Metadata:
  
        encoder         : Lavc55.66.100 mjpeg
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
    Stream #0:1 -> #0:1 (ac3 (native) -> aac (libfdk_aac))
  
    Stream #0:0 -> #1:0 (h264 (native) -> h264 (libx264))
  
    Stream #0:1 -> #1:1 (ac3 (native) -> aac (libfdk_aac))
  
    Stream #0:0 -> #2:0 (h264 (native) -> mjpeg (mjpeg))
  
    Stream #0:0 -> #3:0 (h264 (native) -> mjpeg (mjpeg))
  
  frame=15090 fps=1.0 q=39.0 q=30.0 q=6.6 q=4.3 size=  193843kB time=00:04:11.75 bitrate=6307.7kbits/s dup=0 drop=15088    
  
  [mp4 @ 0x210ae00] Starting second pass: moving the moov atom to the beginning of the file
  
  [mp4 @ 0x210ae00] Unable to re-open /transcodes/883_1000_1403436916_00001_HQ.mp4 output file for the second pass (faststart)
  
  [mp4 @ 0x214fc20] Starting second pass: moving the moov atom to the beginning of the file
  
  [mp4 @ 0x214fc20] Unable to re-open /transcodes/883_1000_1403436916_00001_SQ.mp4 output file for the second pass (faststart)
  
  frame=15090 fps=1.0 q=39.0 Lq=30.0 q=6.6 q=4.3 size=  193843kB time=00:04:11.77 bitrate=6307.1kbits/s dup=0 drop=15088    
  
  video:212914kB audio:15741kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
  
  [libx264 @ 0x2143e60] frame I:162   Avg QP:23.31  size: 38205
  
  [libx264 @ 0x2143e60] frame P:14928 Avg QP:25.47  size: 12322
  
  [libx264 @ 0x2143e60] mb I  I16..4: 24.9% 70.4%  4.6%
  
  [libx264 @ 0x2143e60] mb P  I16..4:  2.2%  3.2%  0.0%  P16..4: 38.3%  3.7%  4.3%  0.0%  0.0%    skip:48.3%
  
  [libx264 @ 0x2143e60] 8x8 transform intra:60.6% inter:94.6%
  
  [libx264 @ 0x2143e60] coded y,uvDC,uvAC intra: 25.5% 50.7% 2.8% inter: 9.7% 17.3% 0.0%
  
  [libx264 @ 0x2143e60] i16 v,h,dc,p: 43% 17% 10% 29%
  
  [libx264 @ 0x2143e60] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 30% 13% 34%  4%  4%  4%  5%  3%  3%
  
  [libx264 @ 0x2143e60] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 37% 18% 13%  5%  7%  6%  7%  4%  3%
  
  [libx264 @ 0x2143e60] i8c dc,h,v,p: 64% 15% 19%  2%
  
  [libx264 @ 0x2143e60] Weighted P-Frames: Y:0.2% UV:0.0%
  
  [libx264 @ 0x2143e60] ref P L0: 67.7% 14.5% 13.8%  4.0%  0.0%
  
  [libx264 @ 0x2143e60] kb/s:6042.08
  
  [libx264 @ 0x2150680] frame I:72    Avg QP:24.70  size: 14016
  
  [libx264 @ 0x2150680] frame P:15018 Avg QP:28.46  size:  1783
  
  [libx264 @ 0x2150680] mb I  I16..4: 39.4%  0.0% 60.6%
  
  [libx264 @ 0x2150680] mb P  I16..4:  0.8%  0.0%  0.3%  P16..4: 36.3%  4.1%  2.6%  0.0%  0.0%    skip:56.0%
  
  [libx264 @ 0x2150680] coded y,uvDC,uvAC intra: 32.1% 41.1% 7.1% inter: 3.9% 6.6% 0.1%
  
  [libx264 @ 0x2150680] i16 v,h,dc,p: 50% 12% 10% 27%
  
  [libx264 @ 0x2150680] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 34% 15% 22%  5%  5%  5%  6%  5%  3%
  
  [libx264 @ 0x2150680] i8c dc,h,v,p: 67% 11% 19%  3%
  
  [libx264 @ 0x2150680] Weighted P-Frames: Y:0.7% UV:0.1%
  
  [libx264 @ 0x2150680] ref P L0: 65.0% 22.3% 10.0%  2.6%  0.0%
  
  [libx264 @ 0x2150680] kb/s:882.93

  I’ve tried adding sleep(5) after:

          exec($cmd, $out, $ret);

  to give the script time to move the moov atom to the front before uploading the local file to s3 and then deleting the local file, but it is not 100% reliable.

  Any ideas?