[FFmpeg-trac] #163(undetermined:new): png output creates artifacts or blank image with x11grab input
FFmpeg
trac at avcodec.org
Sat May 7 00:14:09 CEST 2011
#163: png output creates artifacts or blank image with x11grab input
---------------------+--------------------------
Reporter: llogan | Owner:
Type: defect | Status: new
Priority: normal | Component: undetermined
Version: git | Keywords: x11grab, png
Blocked By: | Blocking:
Reproduced: 0 | Analyzed: 0
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jpg output works as expected. out20110506.png attached.
{{{
$ ffmpeg -f x11grab -r 25 -s 800x600 -i :0.0 -vframes 1 out20110506.png
ffmpeg version git-N-29638-g95f163b, Copyright (c) 2000-2011 the FFmpeg
developers
built on May 6 2011 14:01:20 with gcc 4.6.0 20110415 (prerelease)
configuration: --prefix=/usr --disable-optimizations --enable-x11grab
--enable-gpl
libavutil 51. 2. 1 / 51. 2. 1
libavcodec 53. 3. 0 / 53. 3. 0
libavformat 53. 0. 3 / 53. 0. 3
libavdevice 53. 0. 0 / 53. 0. 0
libavfilter 2. 4. 0 / 2. 4. 0
libswscale 0. 14. 0 / 0. 14. 0
[x11grab @ 0x1aacd40] device: :0.0 -> display: :0.0 x: 0 y: 0 width: 800
height: 600
[x11grab @ 0x1aacd40] shared memory extension found
[x11grab @ 0x1aacd40] Estimating duration from bitrate, this may be
inaccurate
Input #0, x11grab, from ':0.0':
Duration: N/A, start: 1304719812.085890, bitrate: 384000 kb/s
Stream #0.0: Video: rawvideo, bgra, 800x600, 384000 kb/s, 25 tbr,
1000k tbn, 25 tbc
[buffer @ 0x1abb160] w:800 h:600 pixfmt:bgra
Output #0, image2, to 'out20110506.png':
Metadata:
encoder : Lavf53.0.3
Stream #0.0: Video: png, bgra, 800x600, q=2-31, 200 kb/s, 90k tbn, 25
tbc
Stream mapping:
Stream #0.0 -> #0.0
Press [q] to stop encoding
frame= 1 fps= 0 q=0.0 Lsize= -0kB time=0.04 bitrate= -4.4kbits/s
video:72kB audio:0kB global headers:0kB muxing overhead -100.029685%
}}}
--
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/163>
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