Opened 10 years ago
Closed 10 years ago
#4164 closed defect (fixed)
x11grab (xcb) with show_region gives (partial) static image
| Reported by: | DiJuMx | Owned by: | |
|---|---|---|---|
| Priority: | normal | Component: | avdevice |
| Version: | git-master | Keywords: | xcb |
| Cc: | Blocked By: | ||
| Blocking: | Reproduced by developer: | yes | |
| Analyzed by developer: | no |
Description
Summary of the bug:
Specifying show_region when using xcb-based screen grab causes the region to become static (and recorded as such). Without show_region, the region is not static and is captured as normal.
Example output here: http://youtu.be/QZdEPZmWNG8
How to reproduce:
% ffmpeg -f x11grab -s 320x240 -show_region 1 -i :0.0+100,100 -f mp4 capture.mkv ffmpeg version 2.5 Copyright (c) 2000-2014 the FFmpeg developers built on Dec 6 2014 15:13:09 with gcc 4.9.1 (Debian 4.9.1-19) configuration: --prefix=/home/daniel/ffmpeg_build --extra-cflags=-I/home/daniel/ffmpeg_build/include --extra-ldflags=-L/home/daniel/ffmpeg_build/lib --bindir=/home/daniel/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-libxcb --enable-libxcb-shm --enable-libxcb-shape --enable-libpulse 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
Attachments (1)
Change History (7)
comment:1 by , 10 years ago
| Keywords: | x11grab freeze static removed |
|---|
comment:2 by , 10 years ago
Command and output for current git head
$ ffmpeg -f x11grab -s 320x240 -show_region 1 -i :0.0+100,100 -t 10 -f mp4 capture.mkv -y
ffmpeg version N-68264-gc149f67e9b5b Copyright (c) 2000-2014 the FFmpeg developers
built on Dec 6 2014 17:37:52 with gcc 4.9.1 (Debian 4.9.1-19)
configuration: --prefix=/home/daniel/ffmpeg_build --extra-cflags=-I/home/daniel/ffmpeg_build/include --extra-ldflags=-L/home/daniel/ffmpeg_build/lib --bindir=/home/daniel/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-libxcb --enable-libxcb-shm --enable-libxcb-shape --enable-libpulse
libavutil 54. 15.100 / 54. 15.100
libavcodec 56. 14.100 / 56. 14.100
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
Input #0, x11grab, from ':0.0+100,100':
Duration: N/A, start: 1417887553.610080, bitrate: N/A
Stream #0:0: Video: rawvideo (BGRA / 0x41524742), bgra, 320x240, 29.97 fps, 29.97 tbr, 1000k tbn, 29.97 tbc
No pixel format specified, yuv444p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 0x39e5cc0] using cpu capabilities: MMX2 SSE2Fast LZCNT
[libx264 @ 0x39e5cc0] profile High 4:4:4 Predictive, level 1.3, 4:4:4 8-bit
[libx264 @ 0x39e5cc0] 264 - core 142 r2431 a5831aa - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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=4 threads=9 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, mp4, to 'capture.mkv':
Metadata:
encoder : Lavf56.15.102
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p, 320x240, q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc
Metadata:
encoder : Lavc56.14.100 libx264
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
Press [q] to stop, [?] for help
frame= 300 fps= 30 q=-1.0 Lsize= 288kB time=00:00:09.94 bitrate= 237.1kbits/s dup=1 drop=0
video:284kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.246728%
[libx264 @ 0x39e5cc0] frame I:2 Avg QP:24.41 size: 13812
[libx264 @ 0x39e5cc0] frame P:200 Avg QP:27.00 size: 1196
[libx264 @ 0x39e5cc0] frame B:98 Avg QP:33.57 size: 241
[libx264 @ 0x39e5cc0] consecutive B-frames: 46.3% 28.0% 7.0% 18.7%
[libx264 @ 0x39e5cc0] mb I I16..4: 24.3% 1.3% 74.3%
[libx264 @ 0x39e5cc0] mb P I16..4: 0.6% 0.4% 3.5% P16..4: 5.0% 3.1% 1.9% 0.0% 0.0% skip:85.5%
[libx264 @ 0x39e5cc0] mb B I16..4: 0.1% 0.2% 0.3% B16..8: 6.8% 2.2% 0.8% direct: 0.3% skip:89.4% L0:38.6% L1:58.6% BI: 2.9%
[libx264 @ 0x39e5cc0] 8x8 transform intra:9.6% inter:11.0%
[libx264 @ 0x39e5cc0] coded y,u,v intra: 61.9% 2.8% 4.9% inter: 3.1% 0.1% 0.2%
[libx264 @ 0x39e5cc0] i16 v,h,dc,p: 7% 88% 4% 1%
[libx264 @ 0x39e5cc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 27% 61% 1% 0% 0% 0% 0% 0%
[libx264 @ 0x39e5cc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 28% 21% 2% 4% 3% 5% 4% 4%
[libx264 @ 0x39e5cc0] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x39e5cc0] ref P L0: 65.0% 10.2% 17.3% 7.5%
[libx264 @ 0x39e5cc0] ref B L0: 89.6% 9.4% 1.0%
[libx264 @ 0x39e5cc0] ref B L1: 99.2% 0.8%
[libx264 @ 0x39e5cc0] kb/s:232.08
Version 0, edited 10 years ago by (next)
comment:3 by , 10 years ago
I tested the following with xcb and the output file is not static:
$ ffmpeg -f x11grab -show_region 1 -i :0 -qscale 2 out.avi
ffmpeg version N-68239-ga0d0799 Copyright (c) 2000-2014 the FFmpeg developers
built on Dec 6 2014 00:41:32 with gcc 4.7 (SUSE Linux)
configuration: --enable-gpl
libavutil 54. 15.100 / 54. 15.100
libavcodec 56. 14.100 / 56. 14.100
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
Input #0, x11grab, from ':0':
Duration: N/A, start: 1417895763.578158, bitrate: N/A
Stream #0:0: Video: rawvideo (BGRA / 0x41524742), bgra, 640x480, 29.97 fps, 29.97 tbr, 1000k tbn, 29.97 tbc
Please use -q:a or -q:v, -qscale is ambiguous
Output #0, avi, to 'out.avi':
Metadata:
ISFT : Lavf56.15.102
Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 640x480, q=2-31, 200 kb/s, 29.97 fps, 29.97 tbn, 29.97 tbc
Metadata:
encoder : Lavc56.14.100 mpeg4
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> mpeg4 (native))
Press [q] to stop, [?] for help
frame= 18 fps=0.0 q=2.0 size= 529kB time=00:00:01.10 bitrate=3934.5kbits/s dup=0 drop=14
frame= 33 fps= 33 q=2.0 size= 868kB time=00:00:01.60 bitrate=4437.8kbits/s dup=0 drop=14
frame= 48 fps= 32 q=2.0 size= 1165kB time=00:00:02.10 bitrate=4541.6kbits/s dup=0 drop=14
frame= 64 fps= 31 q=2.0 size= 1504kB time=00:00:02.63 bitrate=4675.4kbits/s dup=0 drop=14
frame= 79 fps= 31 q=2.0 size= 1802kB time=00:00:03.13 bitrate=4707.0kbits/s dup=0 drop=14
frame= 94 fps= 31 q=2.0 size= 2144kB time=00:00:03.63 bitrate=4828.6kbits/s dup=0 drop=14
frame= 109 fps= 31 q=2.0 size= 2645kB time=00:00:04.13 bitrate=5236.1kbits/s dup=0 drop=14
frame= 124 fps= 31 q=2.0 size= 2952kB time=00:00:04.63 bitrate=5214.0kbits/s dup=0 drop=14
frame= 140 fps= 31 q=2.0 size= 3254kB time=00:00:05.17 bitrate=5154.8kbits/s dup=0 drop=14
frame= 155 fps= 30 q=2.0 size= 3560kB time=00:00:05.67 bitrate=5141.7kbits/s dup=0 drop=14
frame= 170 fps= 30 q=2.0 size= 4067kB time=00:00:06.17 bitrate=5397.0kbits/s dup=0 drop=14
frame= 176 fps= 25 q=2.0 size= 4221kB time=00:00:07.44 bitrate=4647.0kbits/s dup=0 drop=14
frame= 194 fps= 26 q=2.0 size= 4728kB time=00:00:08.04 bitrate=4816.1kbits/s dup=0 drop=46
frame= 210 fps= 26 q=2.0 size= 5077kB time=00:00:08.57 bitrate=4849.7kbits/s dup=0 drop=46
frame= 222 fps= 26 q=2.0 Lsize= 5401kB time=00:00:08.97 bitrate=4929.7kbits/s dup=0 drop=46
video:5389kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.223046%
I don't have a Debian installation to test.
comment:4 by , 10 years ago
Yes, I just tried it, and it doesn't appear static. Could you try with the offset, so:
ffmpeg -f x11grab -show_region 1 -i :0.0+50,50 -qscale 2 out.avi
If the top-left corner of the capture region is "+x,y", the non-static portion of the capture seems to start at "+(2*x),(2*y)"
comment:5 by , 10 years ago
| Component: | undetermined → avdevice |
|---|---|
| Reproduced by developer: | set |
| Status: | new → open |
| Version: | 2.5 → git-master |
I can reproduce the issue with the following command:
$ ffmpeg -f x11grab -show_region 1 -i :0+50,50 -qscale 2 out.avi
comment:6 by , 10 years ago
| Resolution: | → fixed |
|---|---|
| Status: | open → closed |
Fixed by you in 0ae37e46
Thank you for the report and the fix!
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