[FFmpeg-trac] #4317(avformat:new): bug in encoding mjpeg in RTP

FFmpeg trac at avcodec.org
Thu Feb 19 23:03:25 CET 2015 

#4317: bug in encoding mjpeg in RTP
-----------------------------------+--------------------------------------
             Reporter:  runge_mar  |                     Type:  defect
               Status:  new        |                 Priority:  normal
            Component:  avformat   |                  Version:  git-master
             Keywords:  mjpeg rtp  |               Blocked By:
             Blocking:             |  Reproduced by developer:  0
Analyzed by developer:  0          |
-----------------------------------+--------------------------------------
 Summary of the bug:
 sending mjpeg stream from webcam results in broken jpeg frames at
 receiver.

 I record video from webcam like this:
 {{{
 % ffmpeg -loglevel debug  -f v4l2 -input_format mjpeg  -framerate 25
 -video_size 640x480  -i /dev/video0 -vcodec copy -f rtp
 "rtp://127.0.0.1:5004"
 ffmpeg version 2.5.4 Copyright (c) 2000-2015 the FFmpeg developers
   built on Feb 15 2015 11:58:53 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
   configuration: --enable-debug=2 --disable-optimizations --disable-
 stripping --prefix=/home/martin/locallibs/ --enable-gpl --enable-libx264
 --enable-shared
   libavutil      54. 15.100 / 54. 15.100
   libavcodec     56. 13.100 / 56. 13.100
   libavformat    56. 15.102 / 56. 15.102
   libavdevice    56.  3.100 / 56.  3.100
   libavfilter     5.  2.103 /  5.  2.103
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
 Splitting the commandline.
 Reading option '-loglevel' ... matched as option 'loglevel' (set logging
 level) with argument 'debug'.
 Reading option '-f' ... matched as option 'f' (force format) with argument
 'v4l2'.
 Reading option '-input_format' ... matched as AVOption 'input_format' with
 argument 'mjpeg'.
 Reading option '-framerate' ... matched as AVOption 'framerate' with
 argument '25'.
 Reading option '-video_size' ... matched as AVOption 'video_size' with
 argument '640x480'.
 Reading option '-i' ... matched as input file with argument '/dev/video0'.
 Reading option '-vcodec' ... matched as option 'vcodec' (force video codec
 ('copy' to copy stream)) with argument 'copy'.
 Reading option '-f' ... matched as option 'f' (force format) with argument
 'rtp'.
 Reading option 'rtp://127.0.0.1:5004' ... 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 /dev/video0.
 Applying option f (force format) with argument v4l2.
 Successfully parsed a group of options.
 Opening an input file: /dev/video0.
 [video4linux2,v4l2 @ 0x122e1c0] fd:3 capabilities:84000001
 [video4linux2,v4l2 @ 0x122e1c0] Current input_channel: 0, input_name:
 Camera 1, input_std: 0
 [video4linux2,v4l2 @ 0x122e1c0] Setting time per frame to 1/25
 [video4linux2,v4l2 @ 0x122e1c0] The driver changed the time per frame from
 1/25 to 1/30
 [mjpeg @ 0x122eb60] marker=d8 avail_size_in_buf=91523
 [mjpeg @ 0x122eb60] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x122eb60] marker=e0 avail_size_in_buf=91521
 [mjpeg @ 0x122eb60] marker parser used 16 bytes (128 bits)
 [mjpeg @ 0x122eb60] marker=db avail_size_in_buf=91503
 [mjpeg @ 0x122eb60] index=0
 [mjpeg @ 0x122eb60] qscale[0]: 2
 [mjpeg @ 0x122eb60] marker parser used 67 bytes (536 bits)
 [mjpeg @ 0x122eb60] marker=db avail_size_in_buf=91434
 [mjpeg @ 0x122eb60] index=1
 [mjpeg @ 0x122eb60] qscale[1]: 2
 [mjpeg @ 0x122eb60] marker parser used 67 bytes (536 bits)
 [mjpeg @ 0x122eb60] marker=c4 avail_size_in_buf=91365
 [mjpeg @ 0x122eb60] class=0 index=0 nb_codes=12
 [mjpeg @ 0x122eb60] marker parser used 31 bytes (248 bits)
 [mjpeg @ 0x122eb60] marker=c4 avail_size_in_buf=91332
 [mjpeg @ 0x122eb60] class=1 index=0 nb_codes=251
 [mjpeg @ 0x122eb60] marker parser used 181 bytes (1448 bits)
 [mjpeg @ 0x122eb60] marker=c4 avail_size_in_buf=91149
 [mjpeg @ 0x122eb60] class=0 index=1 nb_codes=12
 [mjpeg @ 0x122eb60] marker parser used 31 bytes (248 bits)
 [mjpeg @ 0x122eb60] marker=c4 avail_size_in_buf=91116
 [mjpeg @ 0x122eb60] class=1 index=1 nb_codes=251
 [mjpeg @ 0x122eb60] marker parser used 181 bytes (1448 bits)
 [mjpeg @ 0x122eb60] marker=dd avail_size_in_buf=90933
 [mjpeg @ 0x122eb60] restart interval: 40
 [mjpeg @ 0x122eb60] marker parser used 4 bytes (32 bits)
 [mjpeg @ 0x122eb60] marker=c0 avail_size_in_buf=90927
 [mjpeg @ 0x122eb60] sof0: picture: 640x480
 [mjpeg @ 0x122eb60] component 0 2:1 id: 0 quant:0
 [mjpeg @ 0x122eb60] component 1 1:1 id: 1 quant:1
 [mjpeg @ 0x122eb60] component 2 1:1 id: 2 quant:1
 [mjpeg @ 0x122eb60] pix fmt id 21111100
 [mjpeg @ 0x122eb60] marker parser used 17 bytes (136 bits)
 [mjpeg @ 0x122eb60] escaping removed 390 bytes
 [mjpeg @ 0x122eb60] marker=da avail_size_in_buf=90908
 [mjpeg @ 0x122eb60] component: 0
 [mjpeg @ 0x122eb60] component: 1
 [mjpeg @ 0x122eb60] component: 2
 [mjpeg @ 0x122eb60] marker parser used 90517 bytes (724134 bits)
 [mjpeg @ 0x122eb60] marker=d9 avail_size_in_buf=0
 [mjpeg @ 0x122eb60] decode frame unused 0 bytes
 [video4linux2,v4l2 @ 0x122e1c0] All info found
 Input #0, video4linux2,v4l2, from '/dev/video0':
   Duration: N/A, start: 63929.186648, bitrate: N/A
     Stream #0:0, 1, 1/1000000: Video: mjpeg, yuvj422p(pc,
 bt470bg/unknown/unknown, center), 640x480 [SAR 96:96 DAR 4:3], 1/1000000,
 -5 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
 Successfully opened the file.
 Parsing a group of options: output file rtp://127.0.0.1:5004.
 Applying option vcodec (force video codec ('copy' to copy stream)) with
 argument copy.
 Applying option f (force format) with argument rtp.
 Successfully parsed a group of options.
 Opening an output file: rtp://127.0.0.1:5004.
 Successfully opened the file.
 Output #0, rtp, to 'rtp://127.0.0.1:5004':
   Metadata:
     encoder         : Lavf56.15.102
     Stream #0:0, 0, 1/90000: Video: mjpeg, yuvj422p(center), 640x480 (0x0)
 [SAR 96:96 DAR 4:3], 1/1000000, q=2-31, -5 kb/s, 30 fps, 90k tbn, 1000k
 tbc
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
 SDP:
 v=0
 o=- 0 0 IN IP4 127.0.0.1
 s=No Name
 c=IN IP4 127.0.0.1
 t=0 0
 a=tool:libavformat 56.15.102
 m=video 5004 RTP/AVP 26
 b=AS:-5

 Press [q] to stop, [?] for help
 [rtp @ 0x1230620] Only 8-bit precision is supported.
     Last message repeated 3 times
 [rtp @ 0x1230620] Only 8-bit precision is supported.0:00.29
 bitrate=10183.9kbits/s
     Last message repeated 3 times
 [rtp @ 0x1230620] Only 8-bit precision is supported.0:00.81
 bitrate=7229.0kbits/s
     Last message repeated 1 times
 }}}

 Playback with:
 {{{
 % ffplay -loglevel debug rtp://127.0.0.1:5004
 ffplay version 2.5.4 Copyright (c) 2003-2015 the FFmpeg developers
   built on Feb 15 2015 11:58:53 with gcc 4.8 (Ubuntu 4.8.2-19ubuntu1)
   configuration: --enable-debug=2 --disable-optimizations --disable-
 stripping --prefix=/home/martin/locallibs/ --enable-gpl --enable-libx264
 --enable-shared
   libavutil      54. 15.100 / 54. 15.100
   libavcodec     56. 13.100 / 56. 13.100
   libavformat    56. 15.102 / 56. 15.102
   libavdevice    56.  3.100 / 56.  3.100
   libavfilter     5.  2.103 /  5.  2.103
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
 [udp @ 0x7fea60005d80] end receive buffer size reported is 131072
 [udp @ 0x7fea60005e00] end receive buffer size reported is 131072
 [rtp @ 0x7fea600008c0] Guessing on RTP content - if not received properly
 you need an SDP file describing it
 [rtp @ 0x7fea600008c0] SDP:
 v=0
 c=IN IP4 127.0.0.1
 m=video 5004 RTP/AVP 26

 [udp @ 0x7fea60004e40] end receive buffer size reported is 131072
 [udp @ 0x7fea60004f00] end receive buffer size reported is 131072
 [rtp @ 0x7fea600008c0] Received packet without a start chunk; dropping
 frame.
     Last message repeated 34 times
 [mjpeg @ 0x7fea600049e0] marker=d8 avail_size_in_buf=96495B f=0/0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=e0 avail_size_in_buf=96493
 [mjpeg @ 0x7fea600049e0] marker parser used 16 bytes (128 bits)
 [mjpeg @ 0x7fea600049e0] marker=db avail_size_in_buf=96475
 [mjpeg @ 0x7fea600049e0] index=0
 [mjpeg @ 0x7fea600049e0] qscale[0]: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 67 bytes (536 bits)
 [mjpeg @ 0x7fea600049e0] marker=c4 avail_size_in_buf=96406
 [mjpeg @ 0x7fea600049e0] class=0 index=0 nb_codes=12
 [mjpeg @ 0x7fea600049e0] class=0 index=1 nb_codes=12
 [mjpeg @ 0x7fea600049e0] class=1 index=0 nb_codes=251
 [mjpeg @ 0x7fea600049e0] class=1 index=1 nb_codes=251
 [mjpeg @ 0x7fea600049e0] marker parser used 418 bytes (3344 bits)
 [mjpeg @ 0x7fea600049e0] marker=c0 avail_size_in_buf=95986
 [mjpeg @ 0x7fea600049e0] sof0: picture: 640x480
 [mjpeg @ 0x7fea600049e0] component 0 2:1 id: 0 quant:0
 [mjpeg @ 0x7fea600049e0] component 1 1:1 id: 1 quant:0
 [mjpeg @ 0x7fea600049e0] component 2 1:1 id: 2 quant:0
 [mjpeg @ 0x7fea600049e0] pix fmt id 21111100
 [mjpeg @ 0x7fea600049e0] marker parser used 17 bytes (136 bits)
 [mjpeg @ 0x7fea600049e0] escaping removed 431 bytes
 [mjpeg @ 0x7fea600049e0] marker=da avail_size_in_buf=95967
 [mjpeg @ 0x7fea600049e0] component: 0
 [mjpeg @ 0x7fea600049e0] component: 1
 [mjpeg @ 0x7fea600049e0] component: 2
 [mjpeg @ 0x7fea600049e0] mjpeg_decode_dc: bad vlc: 0:0 (0x7fea600090c0)
 [mjpeg @ 0x7fea600049e0] error dc
 [mjpeg @ 0x7fea600049e0] error y=1 x=0
 [mjpeg @ 0x7fea600049e0] marker parser used 1322 bytes (10571 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=94639
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=93355
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=92052
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d3 avail_size_in_buf=90779
 [mjpeg @ 0x7fea600049e0] restart marker: 3
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d4 avail_size_in_buf=89471
 [mjpeg @ 0x7fea600049e0] restart marker: 4
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d5 avail_size_in_buf=88168
 [mjpeg @ 0x7fea600049e0] restart marker: 5
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d6 avail_size_in_buf=86891
 [mjpeg @ 0x7fea600049e0] restart marker: 6
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d7 avail_size_in_buf=85629
 [mjpeg @ 0x7fea600049e0] restart marker: 7
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=84335
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=83045
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=81771
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d3 avail_size_in_buf=80472
 [mjpeg @ 0x7fea600049e0] restart marker: 3
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d4 avail_size_in_buf=79183
 [mjpeg @ 0x7fea600049e0] restart marker: 4
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d5 avail_size_in_buf=77923
 [mjpeg @ 0x7fea600049e0] restart marker: 5
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d6 avail_size_in_buf=76673
 [mjpeg @ 0x7fea600049e0] restart marker: 6
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d7 avail_size_in_buf=75424
 [mjpeg @ 0x7fea600049e0] restart marker: 7
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=74187
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=72942
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=71662
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d3 avail_size_in_buf=70379
 [mjpeg @ 0x7fea600049e0] restart marker: 3
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d4 avail_size_in_buf=69091
 [mjpeg @ 0x7fea600049e0] restart marker: 4
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d5 avail_size_in_buf=67810
 [mjpeg @ 0x7fea600049e0] restart marker: 5
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d6 avail_size_in_buf=66481
 [mjpeg @ 0x7fea600049e0] restart marker: 6
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d7 avail_size_in_buf=65214
 [mjpeg @ 0x7fea600049e0] restart marker: 7
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=63872
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=62338
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=60611
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d3 avail_size_in_buf=58732
 [mjpeg @ 0x7fea600049e0] restart marker: 3
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d4 avail_size_in_buf=56727
 [mjpeg @ 0x7fea600049e0] restart marker: 4
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d5 avail_size_in_buf=55163
 [mjpeg @ 0x7fea600049e0] restart marker: 5
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d6 avail_size_in_buf=53637
 [mjpeg @ 0x7fea600049e0] restart marker: 6
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d7 avail_size_in_buf=52296
 [mjpeg @ 0x7fea600049e0] restart marker: 7
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=50915
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=49546
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=47909
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d3 avail_size_in_buf=46168
 [mjpeg @ 0x7fea600049e0] restart marker: 3
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d4 avail_size_in_buf=44494
 [mjpeg @ 0x7fea600049e0] restart marker: 4
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d5 avail_size_in_buf=42925
 [mjpeg @ 0x7fea600049e0] restart marker: 5
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d6 avail_size_in_buf=41276
 [mjpeg @ 0x7fea600049e0] restart marker: 6
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d7 avail_size_in_buf=39592
 [mjpeg @ 0x7fea600049e0] restart marker: 7
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=37686
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=35937
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=34299
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d3 avail_size_in_buf=32519
 [mjpeg @ 0x7fea600049e0] restart marker: 3
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d4 avail_size_in_buf=30622
 [mjpeg @ 0x7fea600049e0] restart marker: 4
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d5 avail_size_in_buf=28355
 [mjpeg @ 0x7fea600049e0] restart marker: 5
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d6 avail_size_in_buf=26057
 [mjpeg @ 0x7fea600049e0] restart marker: 6
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d7 avail_size_in_buf=23857
 [mjpeg @ 0x7fea600049e0] restart marker: 7
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=21742
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=19630
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=17576
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d3 avail_size_in_buf=15622
 [mjpeg @ 0x7fea600049e0] restart marker: 3
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d4 avail_size_in_buf=13401
 [mjpeg @ 0x7fea600049e0] restart marker: 4
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d5 avail_size_in_buf=11229
 [mjpeg @ 0x7fea600049e0] restart marker: 5
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d6 avail_size_in_buf=9359
 [mjpeg @ 0x7fea600049e0] restart marker: 6
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d7 avail_size_in_buf=7441
 [mjpeg @ 0x7fea600049e0] restart marker: 7
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=5429
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=3650
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=1837
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d9 avail_size_in_buf=0
 [mjpeg @ 0x7fea600049e0] decode frame unused 0 bytes
 [mjpeg @ 0x7fea600049e0] RTP: missed 5 packets0KB sq=    0B f=0/0
 [rtp @ 0x7fea600008c0] All info foundB vq=    0KB sq=    0B f=0/0
 rfps: 7.416667 0.014103
 rfps: 7.500000 0.002863
     Last message repeated 1 times
 rfps: 7.583333 0.000143
     Last message repeated 1 times
 rfps: 7.666667 0.005944
     Last message repeated 1 times
 rfps: 15.000000 0.011450
     Last message repeated 1 times
 rfps: 15.083333 0.001750
     Last message repeated 1 times
 rfps: 15.166667 0.000572
     Last message repeated 1 times
 rfps: 15.250000 0.007913
 rfps: 22.583333 0.009083
 rfps: 22.666667 0.000924
 rfps: 22.750000 0.001286
     Last message repeated 1 times
 rfps: 22.833333 0.010168
     Last message repeated 1 times
 rfps: 14.985015 0.014098
 Input #0, rtp, from 'rtp://127.0.0.1:5004':
   Duration: N/A, start: 0.026922, bitrate: N/A
     Stream #0:0, 21, 1/90000: Video: mjpeg, yuvj422p(pc,
 bt470bg/unknown/unknown, center), 640x480 [SAR 1:1 DAR 4:3], 1/90000, 7.58
 tbr, 90k tbn, 90k tbc
 [mjpeg @ 0x7fea600049e0] marker=d8 avail_size_in_buf=96495
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=e0 avail_size_in_buf=96493
 [mjpeg @ 0x7fea600049e0] marker parser used 16 bytes (128 bits)
 [mjpeg @ 0x7fea600049e0] marker=db avail_size_in_buf=96475
 [mjpeg @ 0x7fea600049e0] index=0
 [mjpeg @ 0x7fea600049e0] qscale[0]: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 67 bytes (536 bits)
 [mjpeg @ 0x7fea600049e0] marker=c4 avail_size_in_buf=96406
 [mjpeg @ 0x7fea600049e0] class=0 index=0 nb_codes=12
 [mjpeg @ 0x7fea600049e0] class=0 index=1 nb_codes=12
 [mjpeg @ 0x7fea600049e0] class=1 index=0 nb_codes=251
 [mjpeg @ 0x7fea600049e0] class=1 index=1 nb_codes=251
 [mjpeg @ 0x7fea600049e0] marker parser used 418 bytes (3344 bits)
 [mjpeg @ 0x7fea600049e0] marker=c0 avail_size_in_buf=95986
 [mjpeg @ 0x7fea600049e0] sof0: picture: 640x480
 [mjpeg @ 0x7fea600049e0] component 0 2:1 id: 0 quant:0
 [mjpeg @ 0x7fea600049e0] component 1 1:1 id: 1 quant:0
 [mjpeg @ 0x7fea600049e0] component 2 1:1 id: 2 quant:0
 [mjpeg @ 0x7fea600049e0] pix fmt id 21111100
 [mjpeg @ 0x7fea600049e0] marker parser used 17 bytes (136 bits)
 [mjpeg @ 0x7fea600049e0] escaping removed 431 bytes
 [mjpeg @ 0x7fea600049e0] marker=da avail_size_in_buf=95967
 [mjpeg @ 0x7fea600049e0] component: 0
 [mjpeg @ 0x7fea600049e0] component: 1
 [mjpeg @ 0x7fea600049e0] component: 2
 [mjpeg @ 0x7fea600049e0] mjpeg_decode_dc: bad vlc: 0:0 (0x7fea600312c0)
 [mjpeg @ 0x7fea600049e0] error dc
 [mjpeg @ 0x7fea600049e0] error y=1 x=0
 [mjpeg @ 0x7fea600049e0] marker parser used 1322 bytes (10571 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=94639
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=93355
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=92052
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d3 avail_size_in_buf=90779
 [mjpeg @ 0x7fea600049e0] restart marker: 3
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d4 avail_size_in_buf=89471
 [mjpeg @ 0x7fea600049e0] restart marker: 4
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d5 avail_size_in_buf=88168
 [mjpeg @ 0x7fea600049e0] restart marker: 5
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d6 avail_size_in_buf=86891
 [mjpeg @ 0x7fea600049e0] restart marker: 6
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d7 avail_size_in_buf=85629
 [mjpeg @ 0x7fea600049e0] restart marker: 7
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=84335
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=83045
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=81771
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d3 avail_size_in_buf=80472
 [mjpeg @ 0x7fea600049e0] restart marker: 3
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d4 avail_size_in_buf=79183
 [mjpeg @ 0x7fea600049e0] restart marker: 4
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d5 avail_size_in_buf=77923
 [mjpeg @ 0x7fea600049e0] restart marker: 5
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d6 avail_size_in_buf=76673
 [mjpeg @ 0x7fea600049e0] restart marker: 6
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d7 avail_size_in_buf=75424
 [mjpeg @ 0x7fea600049e0] restart marker: 7
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=74187
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=72942
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=71662
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d3 avail_size_in_buf=70379
 [mjpeg @ 0x7fea600049e0] restart marker: 3
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d4 avail_size_in_buf=69091
 [mjpeg @ 0x7fea600049e0] restart marker: 4
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d5 avail_size_in_buf=67810
 [mjpeg @ 0x7fea600049e0] restart marker: 5
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d6 avail_size_in_buf=66481
 [mjpeg @ 0x7fea600049e0] restart marker: 6
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d7 avail_size_in_buf=65214
 [mjpeg @ 0x7fea600049e0] restart marker: 7
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=63872
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=62338
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=60611
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d3 avail_size_in_buf=58732
 [mjpeg @ 0x7fea600049e0] restart marker: 3
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d4 avail_size_in_buf=56727
 [mjpeg @ 0x7fea600049e0] restart marker: 4
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d5 avail_size_in_buf=55163
 [mjpeg @ 0x7fea600049e0] restart marker: 5
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d6 avail_size_in_buf=53637
 [mjpeg @ 0x7fea600049e0] restart marker: 6
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d7 avail_size_in_buf=52296
 [mjpeg @ 0x7fea600049e0] restart marker: 7
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=50915
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=49546
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=47909
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d3 avail_size_in_buf=46168
 [mjpeg @ 0x7fea600049e0] restart marker: 3
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d4 avail_size_in_buf=44494
 [mjpeg @ 0x7fea600049e0] restart marker: 4
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d5 avail_size_in_buf=42925
 [mjpeg @ 0x7fea600049e0] restart marker: 5
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d6 avail_size_in_buf=41276
 [mjpeg @ 0x7fea600049e0] restart marker: 6
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d7 avail_size_in_buf=39592
 [mjpeg @ 0x7fea600049e0] restart marker: 7
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=37686
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=35937
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=34299
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d3 avail_size_in_buf=32519
 [mjpeg @ 0x7fea600049e0] restart marker: 3
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d4 avail_size_in_buf=30622
 [mjpeg @ 0x7fea600049e0] restart marker: 4
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d5 avail_size_in_buf=28355
 [mjpeg @ 0x7fea600049e0] restart marker: 5
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d6 avail_size_in_buf=26057
 [mjpeg @ 0x7fea600049e0] restart marker: 6
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d7 avail_size_in_buf=23857
 [mjpeg @ 0x7fea600049e0] restart marker: 7
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=21742
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=19630
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=17576
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d3 avail_size_in_buf=15622
 [mjpeg @ 0x7fea600049e0] restart marker: 3
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d4 avail_size_in_buf=13401
 [mjpeg @ 0x7fea600049e0] restart marker: 4
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d5 avail_size_in_buf=11229
 [mjpeg @ 0x7fea600049e0] restart marker: 5
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d6 avail_size_in_buf=9359
 [mjpeg @ 0x7fea600049e0] restart marker: 6
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d7 avail_size_in_buf=7441
 [mjpeg @ 0x7fea600049e0] restart marker: 7
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=5429
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d1 avail_size_in_buf=3650
 [mjpeg @ 0x7fea600049e0] restart marker: 1
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d2 avail_size_in_buf=1837
 [mjpeg @ 0x7fea600049e0] restart marker: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=d9 avail_size_in_buf=0
 [mjpeg @ 0x7fea600049e0] decode frame unused 0 bytes
 Video frame changed from size:0x0 format:none serial:-1 to size:640x480
 format:yuvj422p serial:1
 detected 4 logical cores
 [ffplay_buffer @ 0x7fea58020000] Setting 'video_size' to value '640x480'
 [ffplay_buffer @ 0x7fea58020000] Setting 'pix_fmt' to value '13'
 [ffplay_buffer @ 0x7fea58020000] Setting 'time_base' to value '1/90000'
 [ffplay_buffer @ 0x7fea58020000] Setting 'pixel_aspect' to value '1/1'
 [ffplay_buffer @ 0x7fea58020000] Setting 'frame_rate' to value '91/12'
 [ffplay_buffer @ 0x7fea58020000] w:640 h:480 pixfmt:yuvj422p tb:1/90000
 fr:91/12 sar:1/1 sws_param:
 [ffplay_crop @ 0x7fea580b79e0] Setting 'out_w' to value 'floor(in_w/2)*2'
 [ffplay_crop @ 0x7fea580b79e0] Setting 'out_h' to value 'floor(in_h/2)*2'
 [auto-inserted scaler 0 @ 0x7fea5801b7e0] Setting 'flags' to value '4'
 [auto-inserted scaler 0 @ 0x7fea5801b7e0] w:iw h:ih flags:'4' interl:0
 [ffplay_crop @ 0x7fea580b79e0] auto-inserting filter 'auto-inserted scaler
 0' between the filter 'ffplay_buffer' and the filter 'ffplay_crop'
 [AVFilterGraph @ 0x7fea5801cea0] query_formats: 3 queried, 1 merged, 1
 already done, 0 delayed
 [swscaler @ 0x7fea580b8620] deprecated pixel format used, make sure you
 did set range correctly
 [auto-inserted scaler 0 @ 0x7fea5801b7e0] w:640 h:480 fmt:yuvj422p sar:1/1
 -> w:640 h:480 fmt:yuv420p sar:1/1 flags:0x4
 [ffplay_crop @ 0x7fea580b79e0] w:640 h:480 sar:1/1 -> w:640 h:480 sar:1/1
 [mjpeg @ 0x7fea600049e0] marker=d8 avail_size_in_buf=96395B f=0/0
 [mjpeg @ 0x7fea600049e0] marker parser used 0 bytes (0 bits)
 [mjpeg @ 0x7fea600049e0] marker=e0 avail_size_in_buf=96393
 [mjpeg @ 0x7fea600049e0] marker parser used 16 bytes (128 bits)
 [mjpeg @ 0x7fea600049e0] marker=db avail_size_in_buf=96375
 [mjpeg @ 0x7fea600049e0] index=0
 [mjpeg @ 0x7fea600049e0] qscale[0]: 2
 [mjpeg @ 0x7fea600049e0] marker parser used 67 bytes (536 bits)
 [mjpeg @ 0x7fea600049e0] marker=c4 avail_size_in_buf=96306
 [mjpeg @ 0x7fea600049e0] class=0 index=0 nb_codes=12
 [mjpeg @ 0x7fea600049e0] class=0 index=1 nb_codes=12
 [mjpeg @ 0x7fea600049e0] class=1 index=0 nb_codes=251
 [mjpeg @ 0x7fea600049e0] class=1 index=1 nb_codes=251
 [mjpeg @ 0x7fea600049e0] marker parser used 418 bytes (3344 bits)
 [mjpeg @ 0x7fea600049e0] marker=c0 avail_size_in_buf=95886
 [mjpeg @ 0x7fea600049e0] sof0: picture: 640x480
 [mjpeg @ 0x7fea600049e0] component 0 2:1 id: 0 quant:0
 [mjpeg @ 0x7fea600049e0] component 1 1:1 id: 1 quant:0
 [mjpeg @ 0x7fea600049e0] component 2 1:1 id: 2 quant:0
 [mjpeg @ 0x7fea600049e0] pix fmt id 21111100
 [mjpeg @ 0x7fea600049e0] marker parser used 17 bytes (136 bits)
 [mjpeg @ 0x7fea600049e0] escaping removed 432 bytes
 [mjpeg @ 0x7fea600049e0] marker=da avail_size_in_buf=95867
 [mjpeg @ 0x7fea600049e0] component: 0
 [mjpeg @ 0x7fea600049e0] component: 1
 [mjpeg @ 0x7fea600049e0] component: 2
 [mjpeg @ 0x7fea600049e0] mjpeg_decode_dc: bad vlc: 0:0 (0x7fea600312c0)
 [mjpeg @ 0x7fea600049e0] error dc
 [mjpeg @ 0x7fea600049e0] error y=1 x=0
 [mjpeg @ 0x7fea600049e0] marker parser used 1341 bytes (10726 bits)
 [mjpeg @ 0x7fea600049e0] marker=d0 avail_size_in_buf=94515
 [mjpeg @ 0x7fea600049e0] restart marker: 0
 ...
 }}}

 ffplay displays an image with just about the top two lines. I also have
 this problem in a C program using libavformat with a Qt GUI displaying the
 frames. I can successfully display the frames before they are encoded in
 RTP packets (recording from the webcam works fine), but after reception,
 the frames are broken. Same visible output when displaying the RTP stream
 with vlc.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4317>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker

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