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• Extract Video Frames In Python

  28 février 2024, par TheNone

  I want to extract video frames and save them as image.

  



  import os, sys
from PIL import Image

a, b, c = os.popen3("ffmpeg -i test.avi")
out = c.read()
dp = out.index("Duration: ")
duration = out[dp+10:dp+out[dp:].index(",")]
hh, mm, ss = map(float, duration.split(":"))
total = (hh*60 + mm)*60 + ss
for i in xrange(9):
    t = (i + 1) * total / 10
    os.system("ffmpeg -i test.avi -ss %0.3fs frame%i.png" % (t, i))


  



  But I have this error :

  



  FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
Mac OSX universal build for ffmpegX
  configuration:  --enable-memalign-hack --enable-mp3lame --enable-gpl --disable-vhook --disable-ffplay --disable-ffserver --enable-a52 --enable-xvid --enable-faac --enable-faad --enable-amr_nb --enable-amr_wb --enable-pthreads --enable-x264 
  libavutil version: 49.0.0
  libavcodec version: 51.9.0
  libavformat version: 50.4.0
  built on Apr 15 2006 04:58:19, gcc: 4.0.1 (Apple Computer, Inc. build 5250)
Input #0, avi, from 'test.avi':
  Duration: 00:00:30.5, start: 0.000000, bitrate: 465 kb/s
  Stream #0.0, 25.00 fps(r): Video: mpeg4, yuv420p, 640x480
  Stream #0.1: Audio: mp3, 32000 Hz, mono, 32 kb/s
Unable for find a suitable output format for 'frame0.png'


  



  Edit : ffmpeg -formats

  



  FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
Mac OSX universal build for ffmpegX
  configuration:  --enable-memalign-hack --enable-mp3lame --enable-gpl --disable-vhook --disable-ffplay --disable-ffserver --enable-a52 --enable-xvid --enable-faac --enable-faad --enable-amr_nb --enable-amr_wb --enable-pthreads --enable-x264 
  libavutil version: 49.0.0
  libavcodec version: 51.9.0
  libavformat version: 50.4.0
  built on Apr 15 2006 04:58:19, gcc: 4.0.1 (Apple Computer, Inc. build 5250)
File formats:
  E 3g2             3gp2 format
  E 3gp             3gp format
 D  4xm             4X Technologies format
 D  RoQ             Id RoQ format
 D  aac             ADTS AAC
 DE ac3             raw ac3
  E adts            ADTS AAC
 DE aiff            Audio IFF
 DE alaw            pcm A law format
 DE amr             3gpp amr file format
 DE asf             asf format
  E asf_stream      asf format
 DE au              SUN AU Format
 DE avi             avi format
 D  avs             avs format
  E crc             crc testing format
 D  daud            D-Cinema audio format
 D  dts             raw dts
 DE dv              DV video format
  E dvd             MPEG2 PS format (DVD VOB)
 D  ea              Electronic Arts Multimedia Format
 DE ffm             ffm format
 D  film_cpk        Sega FILM/CPK format
 D  flic            FLI/FLC/FLX animation format
 DE flv             flv format
  E framecrc        framecrc testing format
 DE gif             GIF Animation
 DE h261            raw h261
 DE h263            raw h263
 DE h264            raw H264 video format
 D  idcin           Id CIN format
 DE image           image sequence
 DE image2          image2 sequence
 DE image2pipe      piped image2 sequence
 DE imagepipe       piped image sequence
 D  ingenient       Ingenient MJPEG
 D  ipmovie         Interplay MVE format
 DE m4v             raw MPEG4 video format
 D  matroska        Matroska file format
 DE mjpeg           MJPEG video
 D  mm              American Laser Games MM format
 DE mmf             mmf format
  E mov             mov format
 D  mov,mp4,m4a,3gp,3g2,mj2 QuickTime/MPEG4/Motion JPEG 2000 format
  E mp2             MPEG audio layer 2
 DE mp3             MPEG audio layer 3
  E mp4             mp4 format
 DE mpeg            MPEG1 System format
  E mpeg1video      MPEG video
  E mpeg2video      MPEG2 video
 DE mpegts          MPEG2 transport stream format
 D  mpegvideo       MPEG video
  E mpjpeg          Mime multipart JPEG format
 DE mulaw           pcm mu law format
 D  nsv             NullSoft Video format
  E null            null video format
 DE nut             nut format
 D  nuv             NuppelVideo format
 D  ogg             Ogg
  E psp             psp mp4 format
 D  psxstr          Sony Playstation STR format
 DE rawvideo        raw video format
 D  redir           Redirector format
 DE rm              rm format
  E rtp             RTP output format
 D  rtsp            RTSP input format
 DE s16be           pcm signed 16 bit big endian format
 DE s16le           pcm signed 16 bit little endian format
 DE s8              pcm signed 8 bit format
 D  sdp             SDP
 D  shn             raw shorten
 D  smk             Smacker Video
 D  sol             Sierra SOL Format
  E svcd            MPEG2 PS format (VOB)
 DE swf             Flash format
 D  tta             true-audio
 DE u16be           pcm unsigned 16 bit big endian format
 DE u16le           pcm unsigned 16 bit little endian format
 DE u8              pcm unsigned 8 bit format
  E vcd             MPEG1 System format (VCD)
 D  vmd             Sierra VMD format
  E vob             MPEG2 PS format (VOB)
 DE voc             Creative Voice File format
 DE wav             wav format
 D  wc3movie        Wing Commander III movie format
 D  wsaud           Westwood Studios audio format
 D  wsvqa           Westwood Studios VQA format
 DE yuv4mpegpipe    YUV4MPEG pipe format

Image formats (filename extensions, if any, follow):
 DE gif    gif

Codecs:
 D V    4xm
 D V D  8bps
 DEA    aac
 D V D  aasc
 DEA    ac3
 DEA    adpcm_4xm
 DEA    adpcm_adx
 DEA    adpcm_ct
 DEA    adpcm_ea
 DEA    adpcm_ima_dk3
 DEA    adpcm_ima_dk4
 DEA    adpcm_ima_qt
 DEA    adpcm_ima_smjpeg
 DEA    adpcm_ima_wav
 DEA    adpcm_ima_ws
 DEA    adpcm_ms
 DEA    adpcm_sbpro_2
 DEA    adpcm_sbpro_3
 DEA    adpcm_sbpro_4
 DEA    adpcm_swf
 DEA    adpcm_xa
 DEA    adpcm_yamaha
 D A    alac
 DEA    amr_nb
 DEA    amr_wb
 DEV D  asv1
 DEV D  asv2
 D V D  avs
 D V    bmp
 D V D  camstudio
 D V D  camtasia
 D V D  cinepak
 D V D  cljr
 D A    cook
 D V D  cyuv
 DES    dvbsub
 DES    dvdsub
 DEV D  dvvideo
 DEV D  ffv1
 DEVSD  ffvhuff
 D A    flac
 D V D  flic
 DEVSD  flv
 D V D  fraps
 DEA    g726
 DEV D  h261
 DEVSDT h263
 D VSD  h263i
  EV    h263p
 DEV DT h264
 DEVSD  huffyuv
 D V D  idcinvideo
 D V D  indeo2
 D V    indeo3
 D A    interplay_dpcm
 D V D  interplayvideo
  EV    jpegls
 D V    kmvc
  EV    ljpeg
 D V D  loco
 D A    mace3
 D A    mace6
 D V D  mdec
 DEV D  mjpeg
 D V D  mjpegb
 D V D  mmvideo
 DEA    mp2
 DEA    mp3
 D A    mp3adu
 D A    mp3on4
 DEVSDT mpeg1video
 DEVSDT mpeg2video
 DEVSDT mpeg4
 D A    mpeg4aac
 D VSDT mpegvideo
 DEVSD  msmpeg4
 DEVSD  msmpeg4v1
 DEVSD  msmpeg4v2
 D V D  msrle
 D V D  msvideo1
 D V D  mszh
 D V D  nuv
 DEV    pam
 DEV    pbm
 DEA    pcm_alaw
 DEA    pcm_mulaw
 DEA    pcm_s16be
 DEA    pcm_s16le
 DEA    pcm_s24be
 DEA    pcm_s24daud
 DEA    pcm_s24le
 DEA    pcm_s32be
 DEA    pcm_s32le
 DEA    pcm_s8
 DEA    pcm_u16be
 DEA    pcm_u16le
 DEA    pcm_u24be
 DEA    pcm_u24le
 DEA    pcm_u32be
 DEA    pcm_u32le
 DEA    pcm_u8
 DEV    pgm
 DEV    pgmyuv
 DEV    png
 DEV    ppm
 D A    qdm2
 D V D  qdraw
 D V D  qpeg
 D V D  qtrle
 DEV    rawvideo
 D A    real_144
 D A    real_288
 D A    roq_dpcm
 D V D  roqvideo
 D V D  rpza
 DEV D  rv10
 DEV D  rv20
 D A    shorten
 D A    smackaud
 D V    smackvid
 D V D  smc
 DEV    snow
 D A    sol_dpcm
 DEA    sonic
  EA    sonicls
 D V D  sp5x
 DEV D  svq1
 D VSD  svq3
 D V    theora
 D V D  truemotion1
 D V D  truemotion2
 D A    truespeech
 D A    tta
 D V D  ultimotion
 D V    vc9
 D V D  vcr1
 D A    vmdaudio
 D V D  vmdvideo
 D A    vorbis
 D V    vp3
 D V D  vqavideo
 D A    wmav1
 D A    wmav2
 DEVSD  wmv1
 DEVSD  wmv2
 D V D  wnv1
 D A    ws_snd1
 D A    xan_dpcm
 D V D  xan_wc3
 D V D  xl
  EV    xvid
 DEV D  zlib
 D V    zmbv

Supported file protocols:
 file: pipe: udp: rtp: tcp: http:
Frame size, frame rate abbreviations:
 ntsc pal qntsc qpal sntsc spal film ntsc-film sqcif qcif cif 4cif
Motion estimation methods:
 zero(fastest) full(slowest) log phods epzs(default) x1 hex umh iter

Note, the names of encoders and decoders dont always match, so there are
several cases where the above table shows encoder only or decoder only entries
even though both encoding and decoding are supported for example, the h263
decoder corresponds to the h263 and h263p encoders, for file formats its even
worse


  



  What is wrong in my code ? Thanks in advance

  


• How to save rtsp stream without packet loss by using FFMPEG

  11 avril 2021, par sumit singh

  I am saving stream of live camera by using FFMPEG. When i am trying to save the video some data packets are loss so the video is not playing properly.I am using following FFMPEG Library

  



  The command which i am sending is-

  



   String[] cmd = {"-y", "-i", "rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov", "-c:v", "libx264", "-acodec", "aac","-t", time, file_path};
 execFFmpegBinary(cmd);


  



  I am also try this command but the result is same

  



  String[] cmd = { "-y", "-rtsp_transport", "tcp", "-i",  "rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov", "-c:v", "libx264", "-preset", "slow", "-b:v", "500k", "-maxrate", "500k", "-bufsize", "3000k", "-vf", "scale=-1:480", "-threads", "0", "-codec:a", "libfdk_aac", "-b:a", "128k", "-t", time, file_path};


  



  Here is the log of command output-

  



  07-15 15:16:55.180 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:16:55.180 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 455 packets
        07-15 15:16:55.190 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:16:55.190 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 16 packets
        07-15 15:16:55.300 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:16:55.300 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 13 packets
        07-15 15:16:55.310 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45c42680] mb_type 58 in P slice too large at 31 16
        07-15 15:16:55.320 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45c42680] error while decoding MB 31 16
        07-15 15:16:55.330 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45c42680] concealing 918 DC, 918 AC, 918 MV errors in P frame
        07-15 15:16:55.330 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:16:55.330 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 55 packets
        07-15 15:16:55.340 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:16:55.340 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 19 packets
        07-15 15:16:55.340 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:16:55.350 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 1 packets
        07-15 15:16:55.350 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x458737c0] out of range intra chroma pred mode at 7 28
        07-15 15:16:55.350 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x458737c0] error while decoding MB 7 28
        07-15 15:16:55.360 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x458737c0] concealing 402 DC, 402 AC, 402 MV errors in P frame
        07-15 15:16:55.360 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45ab8020] P sub_mb_type 8 out of range at 28 14
        07-15 15:16:55.370 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45ab8020] error while decoding MB 28 14
        07-15 15:16:55.370 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45ab8020] concealing 1011 DC, 1011 AC, 1011 MV errors in P frame
        07-15 15:16:55.380 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45afe200] cbp too large (132) at 12 20
        07-15 15:16:55.380 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45afe200] error while decoding MB 12 20
        07-15 15:16:55.390 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45afe200] concealing 757 DC, 757 AC, 757 MV errors in P frame
        07-15 15:16:55.640 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  173 fps=3.6 q=28.0 size=     657kB time=00:00:23.84 bitrate= 225.8kbits/s speed=0.502x
        07-15 15:16:55.840 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:16:55.910 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 520 packets
        07-15 15:16:55.920 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:16:55.920 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 2 packets
        07-15 15:16:55.920 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:16:55.920 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 56 packets
        07-15 15:16:55.930 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x4581bb60] concealing 800 DC, 800 AC, 800 MV errors in P frame
        07-15 15:16:56.010 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45c42680] concealing 311 DC, 311 AC, 311 MV errors in P frame
        07-15 15:16:56.720 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  174 fps=3.6 q=28.0 size=     674kB time=00:00:23.88 bitrate= 231.0kbits/s speed=0.497x
        07-15 15:16:57.050 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  175 fps=3.6 q=28.0 size=     675kB time=00:00:29.00 bitrate= 190.6kbits/s speed=0.596x
        07-15 15:16:57.350 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  177 fps=3.6 q=28.0 size=     686kB time=00:00:30.36 bitrate= 185.1kbits/s speed=0.617x
        07-15 15:16:58.610 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  182 fps=3.6 q=28.0 size=     703kB time=00:00:30.56 bitrate= 188.3kbits/s speed=0.609x
        07-15 15:16:59.120 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:16:59.120 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 23 packets
        07-15 15:16:59.190 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  184 fps=3.6 q=28.0 size=     709kB time=00:00:30.64 bitrate= 189.6kbits/s speed=0.602x
        07-15 15:16:59.200 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45c42680] concealing 69 DC, 69 AC, 69 MV errors in P frame
        07-15 15:16:59.370 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:16:59.440 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 35 packets
        07-15 15:16:59.440 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x458737c0] concealing 338 DC, 338 AC, 338 MV errors in I frame
        07-15 15:16:59.920 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  187 fps=3.6 q=28.0 size=     716kB time=00:00:30.76 bitrate= 190.7kbits/s speed=0.595x
        07-15 15:16:59.920 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:16:59.990 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 20 packets
        07-15 15:16:59.990 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45afe200] concealing 489 DC, 489 AC, 489 MV errors in P frame
        07-15 15:17:01.980 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  190 fps=3.5 q=28.0 size=     737kB time=00:00:30.88 bitrate= 195.4kbits/s speed=0.575x
        07-15 15:17:01.980 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:01.980 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 35 packets
        07-15 15:17:02.060 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:02.060 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 10 packets
        07-15 15:17:02.230 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:02.230 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 10 packets
        07-15 15:17:02.270 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45ab8020] dquant out of range (124) at 15 35
        07-15 15:17:02.270 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45ab8020] error while decoding MB 15 35
        07-15 15:17:02.280 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45ab8020] concealing 79 DC, 79 AC, 79 MV errors in P frame
        07-15 15:17:02.280 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:02.280 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 76 packets
        07-15 15:17:02.290 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45c42680] concealing 805 DC, 805 AC, 805 MV errors in P frame
        07-15 15:17:02.510 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:02.510 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 40 packets
        07-15 15:17:02.600 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  194 fps=3.6 q=28.0 size=     747kB time=00:00:31.04 bitrate= 197.1kbits/s speed=0.57x
        07-15 15:17:02.610 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:02.610 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 60 packets
        07-15 15:17:02.610 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x458737c0] concealing 526 DC, 526 AC, 526 MV errors in P frame
        07-15 15:17:02.620 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x4581bb60] concealing 197 DC, 197 AC, 197 MV errors in P frame
        07-15 15:17:03.380 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  195 fps=3.5 q=28.0 size=     751kB time=00:00:31.08 bitrate= 198.1kbits/s speed=0.562x
        07-15 15:17:03.570 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:03.640 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 474 packets
        07-15 15:17:03.640 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:03.650 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 109 packets
        07-15 15:17:03.650 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x4581bb60] negative number of zero coeffs at 28 22
        07-15 15:17:03.650 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x4581bb60] error while decoding MB 28 22
        07-15 15:17:03.660 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x4581bb60] concealing 651 DC, 651 AC, 651 MV errors in P frame
        07-15 15:17:03.660 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x458737c0] concealing 1074 DC, 1074 AC, 1074 MV errors in P frame
        07-15 15:17:03.920 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  195 fps=3.5 q=28.0 size=     751kB time=00:00:31.08 bitrate= 198.1kbits/s speed=0.557x
        07-15 15:17:05.530 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  199 fps=3.5 q=25.0 size=     766kB time=00:00:32.84 bitrate= 191.2kbits/s speed=0.573x
        07-15 15:17:06.250 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  202 fps=3.5 q=22.0 size=     784kB time=00:00:32.96 bitrate= 194.8kbits/s speed=0.568x
        07-15 15:17:07.130 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  205 fps=3.5 q=28.0 size=     800kB time=00:00:33.08 bitrate= 198.2kbits/s speed=0.562x
        07-15 15:17:08.960 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  207 fps=3.4 q=28.0 size=     811kB time=00:00:35.32 bitrate= 188.0kbits/s speed=0.581x
        07-15 15:17:09.560 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:09.560 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 133 packets
        07-15 15:17:09.660 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  210 fps=3.4 q=28.0 size=     817kB time=00:00:35.84 bitrate= 186.8kbits/s speed=0.584x
        07-15 15:17:09.670 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:09.670 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 14 packets
        07-15 15:17:09.680 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45c42680] concealing 410 DC, 410 AC, 410 MV errors in I frame
        07-15 15:17:09.770 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x4581bb60] concealing 72 DC, 72 AC, 72 MV errors in P frame
        07-15 15:17:10.730 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:10.730 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 24 packets
        07-15 15:17:10.740 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:10.740 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 56 packets
        07-15 15:17:11.410 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  212 fps=3.4 q=28.0 size=     819kB time=00:00:35.92 bitrate= 186.8kbits/s speed=0.574x
        07-15 15:17:11.510 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:11.510 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 14 packets
        07-15 15:17:11.510 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45ab8020] concealing 77 DC, 77 AC, 77 MV errors in P frame
        07-15 15:17:11.520 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  213 fps=3.4 q=28.0 size=     820kB time=00:00:35.96 bitrate= 186.8kbits/s speed=0.568x
        07-15 15:17:11.520 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:11.520 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 10 packets
        07-15 15:17:11.670 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:11.720 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 82 packets
        07-15 15:17:11.730 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:11.730 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 41 packets
        07-15 15:17:11.740 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45c42680] concealing 1343 DC, 1343 AC, 1343 MV errors in I frame
        07-15 15:17:11.740 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:11.750 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 240 packets
        07-15 15:17:11.890 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:11.900 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 7 packets
        07-15 15:17:11.900 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:11.900 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 63 packets
        07-15 15:17:11.940 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45ab8020] out of range intra chroma pred mode at 42 32
        07-15 15:17:11.950 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45ab8020] error while decoding MB 42 32
        07-15 15:17:11.960 25713-25713/com.github.sampleffmpeg V/output: progress : [h264 @ 0x45ab8020] concealing 187 DC, 187 AC, 187 MV errors in P frame
        07-15 15:17:12.420 25713-25713/com.github.sampleffmpeg V/output: progress : [rtsp @ 0x420391c0] max delay reached. need to consume packet
        07-15 15:17:12.420 25713-25713/com.github.sampleffmpeg V/output: progress : [NULL @ 0x4203ba00] RTP: missed 9 packets
        07-15 15:17:12.830 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  217 fps=3.4 q=24.0 size=     881kB time=00:00:36.12 bitrate= 199.7kbits/s speed=0.562x
        07-15 15:17:32.710 25713-25713/com.github.sampleffmpeg V/output: progress : frame=  217 fps=2.6 q=-1.0 Lsize=    1192kB time=00:00:59.48 bitrate= 164.2kbits/s speed=0.703x
        07-15 15:17:32.720 25713-25713/com.github.sampleffmpeg V/output: progress : video:1190kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.207405%
        07-15 15:17:32.820 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] frame I:4     Avg QP:17.76  size: 23826
        07-15 15:17:32.820 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] frame P:141   Avg QP:20.25  size:  7361
        07-15 15:17:32.830 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] frame B:72    Avg QP:23.59  size:  1173
        07-15 15:17:32.830 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] consecutive B-frames: 54.4%  1.8%  6.9% 36.9%
        07-15 15:17:32.840 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] mb I  I16..4: 23.2% 42.9% 34.0%
        07-15 15:17:32.840 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] mb P  I16..4:  3.6%  3.2%  1.9%  P16..4: 27.9%  6.4%  4.8%  0.0%  0.0%    skip:52.3%
        07-15 15:17:32.850 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] mb B  I16..4:  0.1%  0.1%  0.0%  B16..8: 20.2%  1.0%  0.3%  direct: 1.1%  skip:77.2%  L0:42.5% L1:53.9% BI: 3.7%
        07-15 15:17:32.860 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] 8x8 transform intra:38.4% inter:29.9%
        07-15 15:17:32.860 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] coded y,uvDC,uvAC intra: 49.0% 31.1% 15.6% inter: 12.9% 10.5% 1.3%
        07-15 15:17:32.870 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] i16 v,h,dc,p: 72%  6%  5% 17%
        07-15 15:17:32.870 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 45% 16% 17%  2%  4%  3%  4%  5%  3%
        07-15 15:17:32.880 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 19% 15%  5%  6%  4% 10%  9%  6%
        07-15 15:17:32.880 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] i8c dc,h,v,p: 46% 12% 40%  3%
        07-15 15:17:32.880 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] Weighted P-Frames: Y:0.0% UV:0.0%
        07-15 15:17:32.890 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] ref P L0: 78.9%  6.1%  9.5%  5.6%
        07-15 15:17:32.890 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] ref B L0: 87.4%  9.5%  3.1%
        07-15 15:17:32.890 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] ref B L1: 95.5%  4.5%
        07-15 15:17:32.900 25713-25713/com.github.sampleffmpeg V/output: progress : [libx264 @ 0x420a54c0] kb/s:163.45
        07-15 15:17:32.900 25713-25713/com.github.sampleffmpeg V/output: SUCCESS with output : ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
        built with gcc 4.8 (GCC)
        configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/i686-linux-android- --arch=x86 --cpu=i686 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/x86 --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -march=i686' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
        libavutil      55. 17.103 / 55. 17.103
        libavcodec     57. 24.102 / 57. 24.102
        libavformat    57. 25.100 / 57. 25.100
        libavdevice    57.  0.101 / 57.  0.101
        libavfilter     6. 31.100 /  6. 31.100
        libswscale      4.  0.100 /  4.  0.100
        libswresample   2.  0.101 /  2.  0.101
        libpostproc    54.  0.100 / 54.  0.100
        [udp @ 0x4203b040] 'circular_buffer_size' option was set but it is not supported on this build (pthread support is required)
        [udp @ 0x4203c040] 'circular_buffer_size' option was set but it is not supported on this build (pthread support is required)
        Input #0, rtsp, from 'rtsp://81.109.95.91:3000/stream':
        Metadata:
        title           : Session streamed with GStreamer
        comment         : rtsp-server
        Duration: N/A, start: 0.080000, bitrate: N/A
        Stream #0:0: Video: h264 (Constrained Baseline), yuv420p, 720x576, 25 fps, 25 tbr, 90k tbn, 180k tbc
        [libx264 @ 0x420a54c0] using cpu capabilities: none!
        [libx264 @ 0x420a54c0] profile High, level 3.0
        [libx264 @ 0x420a54c0] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 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=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 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 '/storage/emulated/0/recording15072016-031605.mkv':
        Metadata:
        title           : Session streamed with GStreamer
        comment         : rtsp-server
        encoder         : Lavf57.25.100
        Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv420p, 720x576, q=-1--1, 25 fps, 1k tbn, 25 tbc
        Metadata:
        encoder         : Lavc57.24.102 libx264
        Side data:
        unknown side data type 10 (24 bytes)
        Stream mapping:
        Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
        Press [q] to stop, [?] for help
        frame=   23 fps=0.0 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x
        [rtsp @ 0x420391c0] max delay reached. need to consume packet
        [NULL @ 0x4203ba00] RTP: missed 29 packets
        [h264 @ 0x45afe200] concealing 104 DC, 104 AC, 104 MV errors in P frame
        frame=   42 fps= 41 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x
        frame=   47 fps= 17 q=0.0 size=       0kB time=00:00:00.00 bitrate=N/A speed=   0x
        frame=   52 fps= 14 q=28.0 size=      36kB time=00:00:00.24 bitrate=1231.4kbits/s speed=0.0655x
        frame=   55 fps= 12 q=28.0 size=      46kB time=00:00:00.36 bitrate=1036.1kbits/s speed=0.0783x
        [rtsp @ 0x420391c0] max delay reached. need to con


  



  How to save rtsp stream without packet loss with good quality ? Any help will be appreciated.

  


• What is the difference between ffmpeg -thread and ffmpeg-mt ?

  7 novembre 2018, par S B

  Post ffmpeg-mt’s merge with ffmpeg...

  March 21, 2011

  Today FFmpeg-mt, the multithreaded decoding branch, has been merged into FFmpeg. This has been a long awaited merge, and we would like to thank Alexander Strange for his patience and hard work.

  ... what is to be expected of ffmpeg -thread usage ? Is this an under-the-hood transition or are ffmpeg users supposed to move their code to ffmpeg-mt to leverage multi-cores ?