#11542: gdigrab sometimes fails to capture specific windows on some machines
-------------------------------------+-------------------------------------
Reporter: malaawar | Owner: (none)
Type: defect | Status: new
Priority: important | Component: ffmpeg
Version: git-master | Resolution:
Keywords: gdigrab | Blocked By:
Windows |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by MasterQuestionable):
͏ Log content of interest:
[[
Opening an input file: title=RecordingTest
[C:\Users\rache\Downloads\RecordingTest.blend] - Blender 4.2.
[gdigrab] Found window RecordingTest
[C:\Users\rache\Downloads\RecordingTest.blend] - Blender 4.2, capturing
1920x1102x32 at (0,0)
[gdigrab] Probe buffer size limit of 5000000 bytes reached
[gdigrab] Stream !#0: not enough frames to estimate rate; consider
increasing probesize
Input !#0, gdigrab, from 'title=RecordingTest
[C:\Users\rache\Downloads\RecordingTest.blend] - Blender 4.2':
͏ Duration: N/A, start: 1744083649.965406, bitrate: 2029190 kb/s
͏ Stream !#0:0, 1, 1/1000000: Video: bmp, bgra, 1920x1102, 2029190 kb/s,
29.97 fps, 1000k tbr, 1000k tbn
]]
͏ Probably the "title" failed to match? (try "hwnd"?)
͏ https://ffmpeg.org/ffmpeg-devices.html#gdigrab
͏ https://ffmpeg.org/ffmpeg.html#Video-Options
͏ .
͏ And "-framerate" is not properly applied. (misused as output option)
͏ Interpreted command:
͏ `ffmpeg -f gdigrab -i "title=RecordingTest
[C:\Users\rache\Downloads\RecordingTest.blend] - Blender 4.2" -framerate
30 -c:v libx264 -preset ultrafast -b:v 500k -s 1280x720 -pix_fmt yuv420p
"out0.mkv"`
͏ Likely not permissions issue.
͏ But the recording target matching.
͏ (either somehow multiple "title" matched; or the matched "title"
changed meanwhile)
͏ Is recording "desktop" always working normally?
--
Ticket URL: <https://trac.ffmpeg.org/ticket/11542#comment:8>
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