ffserver mjpeg stream lacks boundaries

[ill]

When playing mjpeg stream from ffserver, it is lacking boundary strings, so firefox can only try to download it and never displays it. Chrome and wget also are unable to grab a frame.

<Stream test.mjpg>

Feed cam.ffm
Format mjpeg
VideoFrameRate 5
VideoIntraOnly
VideoQmin 1
VideoQMax 5
VideoSize 960x720
NoAudio
Strict -1

</Stream>

$ ffserver
ffserver version 2.3.3 Copyright (c) 2000-2014 the FFmpeg developers

built on Oct 6 2014 10:05:27 with gcc 4.8 (SUSE Linux)
configuration: --shlibdir=/usr/lib64 --prefix=/usr --mandir=/usr/share/man --libdir=/usr/lib64 --enable-shared --disable-static --enable-debug --disable-stripping --extra-cflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables -g -fPIC -I/usr/include/gsm' --enable-gpl --enable-x11grab --enable-version3 --enable-pthreads --enable-avfilter --enable-libpulse --enable-libvpx --enable-libopus --enable-libass --enable-libx265 --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libspeex --enable-libxvid --enable-libx264 --enable-libschroedinger --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-postproc --enable-libdc1394 --enable-librtmp --enable-libfreetype --enable-avresample --enable-libtwolame --enable-libvo-aacenc --enable-gnutls
libavutil 52. 92.100 / 52. 92.100
libavcodec 55. 69.100 / 55. 69.100
libavformat 55. 48.100 / 55. 48.100
libavdevice 55. 13.102 / 55. 13.102
libavfilter 4. 11.100 / 4. 11.100
libavresample 1. 3. 0 / 1. 3. 0
libswscale 2. 6.100 / 2. 6.100
libswresample 0. 19.100 / 0. 19.100
libpostproc 52. 3.100 / 52. 3.100

Sat Nov 8 01:26:19 2014 FFserver started.

$ ffmpeg -f video4linux2 -input_format mjpeg -r 1 -i /dev/video0 -strict -1 tp://127.0.0.1:8090/cam.ffm
ffmpeg version 2.3.3 Copyright (c) 2000-2014 the FFmpeg developers

built on Oct 6 2014 10:05:27 with gcc 4.8 (SUSE Linux)
configuration: --shlibdir=/usr/lib64 --prefix=/usr --mandir=/usr/share/man --libdir=/usr/lib64 --enable-shared --disable-static --enable-debug --disable-stripping --extra-cflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables -fasynchronous-unwind-tables -g -fPIC -I/usr/include/gsm' --enable-gpl --enable-x11grab --enable-version3 --enable-pthreads --enable-avfilter --enable-libpulse --enable-libvpx --enable-libopus --enable-libass --enable-libx265 --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-libspeex --enable-libxvid --enable-libx264 --enable-libschroedinger --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-postproc --enable-libdc1394 --enable-librtmp --enable-libfreetype --enable-avresample --enable-libtwolame --enable-libvo-aacenc --enable-gnutls
libavutil 52. 92.100 / 52. 92.100
libavcodec 55. 69.100 / 55. 69.100
libavformat 55. 48.100 / 55. 48.100
libavdevice 55. 13.102 / 55. 13.102
libavfilter 4. 11.100 / 4. 11.100
libavresample 1. 3. 0 / 1. 3. 0
libswscale 2. 6.100 / 2. 6.100
libswresample 0. 19.100 / 0. 19.100
libpostproc 52. 3.100 / 52. 3.100

[video4linux2,v4l2 @ 0x141d2e0] The driver changed the time per frame from 1/1 to 1/5
Input #0, video4linux2,v4l2, from '/dev/video0':

Duration: N/A, start: 176708.143980, bitrate: N/A

Stream #0:0: Video: mjpeg, yuvj422p(pc, bt470bg), 960x720, 0 kb/s, 5 fps, 5 tbr, 1000k tbn, 1000k tbc

[swscaler @ 0x14147c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x144d5c0] deprecated pixel format used, make sure you did set range correctly
[swscaler @ 0x14721e0] deprecated pixel format used, make sure you did set range correctly
[libvpx @ 0x1431f40] v1.3.0
[libvpx @ 0x1431f40] Failed to set VP8E_SET_ARNR_TYPE codec control: Invalid parameter
[libvpx @ 0x1431f40] Additional information: arnr_type out of range [1..3]
Output #0, ffm, to '​http://127.0.0.1:8090/cam.ffm':

Metadata:

creation_time : now
encoder : Lavf55.48.100
Stream #0:0: Video: flv1 (flv), yuv420p, 640x480, q=1-10, 400 kb/s, 1 fps, 1000k tbn, 1 tbc
Metadata:

encoder : Lavc55.69.100 flv

Stream #0:1: Video: vp8 (libvpx), yuv420p, 960x720, q=15-42, 800 kb/s, 1 fps, 1000k tbn, 1 tbc
Metadata:

encoder : Lavc55.69.100 libvpx

Stream #0:2: Video: mjpeg, yuvj422p, 960x720, q=1-5, 128 kb/s, 1 fps, 1000k tbn, 1 tbc
Metadata:

encoder : Lavc55.69.100 mjpeg

Stream #0:3: Video: flv1 (flv), yuv420p, 320x240, q=1-3, 320 kb/s, 1 fps, 1000k tbn, 1 tbc
Metadata:

encoder : Lavc55.69.100 flv

Stream mapping:

Stream #0:0 -> #0:0 (mjpeg (native) -> flv1 (flv))
Stream #0:0 -> #0:1 (mjpeg (native) -> vp8 (libvpx))
Stream #0:0 -> #0:2 (mjpeg (native) -> mjpeg (native))
Stream #0:0 -> #0:3 (mjpeg (native) -> flv1 (flv))

Press [q] to stop, ? for help
[mjpeg @ 0x1432f20] rc buffer underflow

Last message repeated 2 times

frame= 3 fps=0.0 q=2.0 q=0.0 q=33.6 q=2.0 size= 352kB time=00:00:03.00 bitrate= 961.2kbits/s [mjpeg @ 0x1432f20] rc buffer underflow
frame= 4 fps=2.7 q=2.0 q=0.0 q=31.7 q=2.0 size= 456kB time=00:00:04.00 bitrate= 933.9kbits/s [mjpeg @ 0x1432f20] rc buffer underflow

[Rostislav Pehlivanov]

ffserver was removed from git master, closing bug as invalid