[FFmpeg-trac] #5207(undetermined:new): Non-mjpeg file with fourcc MSC2
FFmpeg
trac at avcodec.org
Sun Jan 31 14:04:55 CET 2016
#5207: Non-mjpeg file with fourcc MSC2
-------------------------------------+-------------------------------------
Reporter: cehoyos | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: git- | undetermined
master | Keywords: avi
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
-------------------------------------+-------------------------------------
FFmpeg supports Geutebrueck Multiscope II files from a security camera
with FourCC MSC2, see ticket #4535: http://samples.ffmpeg.org/ffmpeg-
bugs/trac/ticket4535
All files contain a specific variant of mjpeg with an encoded resolution
of 704x288, no audio. The files are supported except for an incorrect
aspect ratio.
A user uploaded a file {{{CapturedMovie.mrec}}} that is an avi with Fourcc
MSC2. It contains silent pcm audio and video frames of very different
size, maybe I- and P-frames, possibly a screen capture codec with a four
byte header but not mjpeg afaict.
{{{
$ ffmpeg -i CapturedMovie.mrec
ffmpeg version N-78214-g9938697 Copyright (c) 2000-2016 the FFmpeg
developers
built with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 55. 16.101 / 55. 16.101
libavcodec 57. 24.100 / 57. 24.100
libavformat 57. 23.101 / 57. 23.101
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 27.100 / 6. 27.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
[mjpeg @ 0x2f4c1c0] bits 145 is invalid
[mjpeg @ 0x2f4c1c0] No JPEG data found in image
Last message repeated 3 times
[mjpeg @ 0x2f4c1c0] bits 230 is invalid
[mjpeg @ 0x2f4c1c0] No JPEG data found in image
[mjpeg @ 0x2f4c1c0] bits 171 is invalid
[mjpeg @ 0x2f4c1c0] bits 77 is invalid
[mjpeg @ 0x2f4c1c0] bits 163 is invalid
[mjpeg @ 0x2f4c1c0] No JPEG data found in image
[mjpeg @ 0x2f4c1c0] bits 206 is invalid
[mjpeg @ 0x2f4c1c0] No JPEG data found in image
Last message repeated 1 times
[mjpeg @ 0x2f4c1c0] bits 219 is invalid
[mjpeg @ 0x2f4c1c0] No JPEG data found in image
[mjpeg @ 0x2f4c1c0] bits 223 is invalid
[mjpeg @ 0x2f4c1c0] bits 35 is invalid
[mjpeg @ 0x2f4c1c0] No JPEG data found in image
Last message repeated 82 times
[mjpeg @ 0x2f4c1c0] bits 145 is invalid
[mjpeg @ 0x2f4c1c0] No JPEG data found in image
Last message repeated 35 times
[avi @ 0x2f4b280] decoding for stream 0 failed
[avi @ 0x2f4b280] Could not find codec parameters for stream 0 (Video:
mjpeg (MSC2 / 0x3243534D), none(bt470bg/unknown/unknown), 480x360,
lossless, 26617 kb/s): unspecified pixel format
Consider increasing the value for the 'analyzeduration' and 'probesize'
options
Guessed Channel Layout for Input Stream #0.1 : stereo
Input #0, avi, from 'CapturedMovie.mrec':
Duration: 00:00:59.03, start: 0.000000, bitrate: 28030 kb/s
Stream #0:0: Video: mjpeg (MSC2 / 0x3243534D),
none(bt470bg/unknown/unknown), 480x360, lossless, 26617 kb/s, SAR 1:1 DAR
4:3, 30 fps, 30 tbr, 30 tbn, 30 tbc
Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2
channels, s16, 1411 kb/s
At least one output file must be specified
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/5207>
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