[FFmpeg-user] Blackmagic card issue capturing
Christian Bianchini
christian.bianchini at euservers.net
Tue Mar 1 16:31:43 CET 2016
I will probably attempt to do this way:
http://stackoverflow.com/questions/19212047/ffmpeg-command-line-for-capturing-and-recording-audio-and-video-in-720p-from-d
Stream all the time to UDP then record when I need.
On 1 March 2016 at 15:17, Christian Bianchini <max246 at gmail.com> wrote:
> Just to prove that it works after few times kill and start again.
> I just dont get it why I have to do that, is because I quit the ffmpeg in
> a strange way? Is this an issue of the ffmpeg? Hardware issues? I tried
> with a different camera and the same happens.
>
> ffmpeg.exe -y -f dshow -video_size 1920x1080 -pixel_format uyv
> y422 -rtbufsize 2100 -framerate 59.94 -i "video=Decklink Video Capture"
> -codec:v
> libx264 -preset ultrafast -an -crf 0 a.mkv
> ffmpeg version N-78598-g98a0053 Copyright (c) 2000-2016 the FFmpeg
> developers
> built with gcc 5.3.0 (GCC)
> configuration: --enable-gpl --enable-version3 --disable-w32threads
> --enable-av
> isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls
> --enab
> le-iconv --enable-libass --enable-libbluray --enable-libbs2b
> --enable-libcaca --
> enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm
> --enable-l
> ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb
> --enab
> le-libopencore-amrwb --enable-libopenjpeg --enable-libopus
> --enable-librtmp --en
> able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora
> --ena
> ble-libtwolame --enable-libvidstab --enable-libvo-amrwbenc
> --enable-libvorbis --
> enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264
> --enable-lib
> x265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma
> --enable-d
> ecklink --enable-zlib
> libavutil 55. 18.100 / 55. 18.100
> libavcodec 57. 24.103 / 57. 24.103
> libavformat 57. 25.101 / 57. 25.101
> libavdevice 57. 0.101 / 57. 0.101
> libavfilter 6. 34.100 / 6. 34.100
> libswscale 4. 0.100 / 4. 0.100
> libswresample 2. 0.101 / 2. 0.101
> libpostproc 54. 0.100 / 54. 0.100
> Input #0, dshow, from 'video=Decklink Video Capture':
> Duration: N/A, start: 0.069038, bitrate: N/A
> Stream #0:0: Video: rawvideo (HDYC / 0x43594448), uyvy422(tv),
> 1920x1080, 59
> .94 tbr, 10000k tbn, 59.94 tbc
> No pixel format specified, yuv422p for H.264 encoding chosen.
> Use -pix_fmt yuv420p for compatibility with outdated media players.
> [libx264 @ 000000193a022a80] using cpu capabilities: MMX2 SSE2Fast SSSE3
> SSE4.2
> AVX FMA3 AVX2 LZCNT BMI2
> [libx264 @ 000000193a022a80] profile High 4:4:4 Predictive, level 4.2,
> 4:2:2 8-b
> it
> [libx264 @ 000000193a022a80] 264 - core 148 r2665 a01e339 - H.264/MPEG-4
> AVC cod
> ec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options:
> cabac=0 r
> ef=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=0 mixed_ref=0
> me_range=16 chro
> ma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=0
> chroma_qp_offset=0
> threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1
> interlaced=0 blu
> ray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250
> keyint_min=25 sc
> enecut=0 intra_refresh=0 rc=cqp mbtree=0 qp=0
> Output #0, matroska, to 'a.mkv':
> Metadata:
> encoder : Lavf57.25.101
> Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuv422p,
> 1920x1080,
> q=-1--1, 59.94 fps, 1k tbn, 59.94 tbc
> Metadata:
> encoder : Lavc57.24.103 libx264
> Side data:
> cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
> Stream mapping:
> Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
> Press [q] to stop, [?] for help
> frame= 31 fps=0.0 q=0.0 size= 3243kB time=00:00:00.30
> bitrate=88547.4kbits/
> frame= 62 fps= 61 q=0.0 size= 8849kB time=00:00:00.81
> bitrate=88730.3kbits/
> frame= 92 fps= 61 q=0.0 size= 14266kB time=00:00:01.31
> bitrate=88668.9kbits/
> frame= 122 fps= 61 q=0.0 size= 19683kB time=00:00:01.81
> bitrate=88692.3kbits/
> frame= 152 fps= 60 q=0.0 size= 25102kB time=00:00:02.31
> bitrate=88674.1kbits/
> frame= 182 fps= 60 q=0.0 size= 30525kB time=00:00:02.81
> bitrate=88704.6kbits/
> frame= 212 fps= 60 q=0.0 size= 35941kB time=00:00:03.32
> bitrate=88682.6kbits/
> frame= 243 fps= 60 q=0.0 size= 41528kB time=00:00:03.83
> bitrate=88662.0kbits/
> frame= 273 fps= 60 q=0.0 size= 46928kB time=00:00:04.33
> bitrate=88619.5kbits/
> frame= 303 fps= 60 q=0.0 size= 52344kB time=00:00:04.83
> bitrate=88631.3kbits/
> frame= 333 fps= 60 q=0.0 size= 57756kB time=00:00:05.33
> bitrate=88618.9kbits/
> [dshow @ 000000193a01b5a0] real-time buffer [Decklink Video Capture]
> [video inpu
> t] too full or near too full (197485% of size: 2100 [rtbufsize
> parameter])! fram
> e dropped!
> frame= 334 fps= 60 q=-1.0 Lsize= 60282kB time=00:00:05.57
> bitrate=88626.7kbit
> s/s speed=0.998x
> video:60278kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
> muxing
> overhead: 0.005839%
> [libx264 @ 000000193a022a80] frame I:2 Avg QP: 0.00 size:175067
> [libx264 @ 000000193a022a80] frame P:332 Avg QP: 0.00 size:184862
> [libx264 @ 000000193a022a80] mb I I16..4: 100.0% 0.0% 0.0%
> [libx264 @ 000000193a022a80] mb P I16..4: 97.0% 0.0% 0.0% P16..4:
> 3.0% 0.0
> % 0.0% 0.0% 0.0% skip: 0.0%
> [libx264 @ 000000193a022a80] coded y,uvDC,uvAC intra: 0.3% 100.0% 99.9%
> inter: 1
> 2.5% 100.0% 100.0%
> [libx264 @ 000000193a022a80] i16 v,h,dc,p: 100% 0% 0% 0%
> [libx264 @ 000000193a022a80] i8c dc,h,v,p: 2% 2% 96% 0%
> [libx264 @ 000000193a022a80] kb/s:88617.23
> [dshow @ 000000193a01b5a0] real-time buffer [Decklink Video Capture]
> [video inpu
> t] too full or near too full (197485% of size: 2100 [rtbufsize
> parameter])! fram
> e dropped!
> Last message repeated 1 times
>
>
>
> On 1 March 2016 at 15:16, Claudiu Rad <jazzman at misalpina.net> wrote:
>
>>
>> On 3/1/2016 5:13 PM, Christian Bianchini wrote:
>>
>>> I just tried without that parameter and
>>>
>>> frame= 2 fps=0.6 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
>>> dup=0 dro
>>> frame= 2 fps=0.5 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
>>> dup=0 dro
>>> frame= 2 fps=0.4 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A
>>> dup=0 dro
>>> [dshow @ 000000898217b420] real-time buffer [Decklink Video Capture]
>>> [video
>>> inpu
>>> t] too full or near too full (136% of size: 3041280 [rtbufsize
>>> parameter])!
>>> fram
>>> e dropped!
>>>
>>
>> well, just try to set it larger like the error suggests, for example 10
>> times the default:
>>
>> -rtbufsize 30412800
>>
>> still, i don't know if this is your problem.
>>
>> --
>> Claudiu
>>
>>
>> _______________________________________________
>> ffmpeg-user mailing list
>> ffmpeg-user at ffmpeg.org
>> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>>
>
>
>
> --
> ---------------------------
> Hardware & Software Developer
> christian at bianchini.ch <christian at biachini.ch>
> www.max246.ch
>
--
---------------------------
Hardware & Software Developer
christian at bianchini.ch <christian at biachini.ch>
www.max246.ch
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