Changes between Version 28 and Version 29 of DirectShow
- Timestamp:
- Jun 3, 2014, 9:59:38 PM (12 years ago)
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DirectShow
v28 v29 38 38 39 39 {{{ 40 $ffmpeg -f dshow -list_options true -i video="Integrated Camera"40 c:\> ffmpeg -f dshow -list_options true -i video="Integrated Camera" 41 41 ffmpeg version N-45279-g6b86dd5 Copyright (c) 2000-2012 the FFmpeg developers 42 42 built on Oct 10 2012 17:30:47 with gcc 4.7.1 (GCC) … … 58 58 }}} 59 59 60 60 61 You can see in this particular instance that it can either stream it to you in a "raw pixel_format" (yuyv422 in this case), or as an mjpeg stream. 61 62 … … 67 68 68 69 You can specify "-vcodec copy" to [http://ffmpeg.org/ffmpeg.html#Stream-copy stream copy] the video instead of re-encoding, if you can receive the data in some type of pre-encoded format, like mjpeg in this instance. 70 71 Example audio list options: 72 {{{ 73 c:\> ffmpeg -f dshow -list_options true -i audio=virtual-audio-capturer 74 ffmpeg version N-50911-g9efcfbe Copyright (c) 2000-2013 the FFmpeg developers 75 built on Mar 13 2013 21:26:48 with gcc 4.7.2 (GCC) 76 configuration:... 77 libavutil 52. 19.100 / 52. 19.100 78 libavcodec 55. 0.100 / 55. 0.100 79 libavformat 55. 0.100 / 55. 0.100 80 libavdevice 54. 4.100 / 54. 4.100 81 libavfilter 3. 45.103 / 3. 45.103 82 libswscale 2. 2.100 / 2. 2.100 83 libswresample 0. 17.102 / 0. 17.102 84 libpostproc 52. 2.100 / 52. 2.100 85 [dshow @ 0215bc00] DirectShow audio device options 86 [dshow @ 0215bc00] Pin "Capture Pin" 87 [dshow @ 0215bc00] min ch=2 bits=16 rate= 44100 max ch=2 bits=16 rate= 44100 88 audio=virtual-audio-capturer: Immediate exit requested 89 }}} 90 69 91 70 92 Also this note [http://ffmpeg.zeranoe.com/forum/viewtopic.php?f=3&t=27 that] the input string is in the format video=<video device name>:audio=<audio device name>. It is possible to have two separate inputs (like -f dshow -i audio=foo -f dshow -i video=bar) though some limited tests had shown a difference in synchronism between the two options. … … 142 164 * currently no ability to select "i420" from various yuv options: http://ffmpeg.org/pipermail/ffmpeg-devel/2014-March/155497.html 143 165 * cannot use audio pins on certain "combined" video/audio sources http://stackoverflow.com/questions/19113197/ffmpeg-directshow-capture-2-pins 166 * json output?
