Re: [FFmpeg-user] Hauppauge WinTV-7164 Analog Composite/S-Video Capture
Figured it out finally. The Hauppauge 2250 (SAA7164 chip), has two tuners, each with dvb/analog TV/composite/svideo inputs. The exact inputs need to be specied, else without specifying, using ffmpeg on simply "Hauppauge WinTV-7164 Analog Capture" will produce random results with inputs, including the audio input. I'm focused on capturing the raw audio and video streams provided by the Hauppauge 2250 PCIe card's MS Windows proprietary SAA7164 chip driver. Using Linux open source SAA7164 driver, or using MS Windows' Hauppauge WinTV, users will only be able to record the already compressed transport and progressive MPEG2 combined audio/video streams. For me and many power users, we want the raw stream, or the yuyv422 rawvideo and s16 PCM audio. Still, both streams will be already combined by the Hauppauge card. c:\ ffmpeg -f dshow -list_options true -i video="Hauppauge WinTV-7164 Analog Capture" ffmpeg version 5.0.1-full_build-www.gyan.dev Copyright (c) 2000-2022 the FFmpeg developers [dshow @ 02229f7a5100] DirectShow video device options (from video devices) [dshow @ 02229f7a5100] Pin "~Capture" (alternative pin name "0") [dshow @ 02229f7a5100] pixel_format=yuyv422 min s=720x576 fps=25 max s=720x576 fps=29.97 [dshow @ 02229f7a5100] pixel_format=yuyv422 min s=720x480 fps=25 max s=720x480 fps=29.97 [dshow @ 02229f7a5100] pixel_format=yuyv422 min s=640x480 fps=25 max s=640x480 fps=29.97 [dshow @ 02229f7a5100] pixel_format=yuyv422 min s=352x288 fps=25 max s=352x288 fps=29.97 [dshow @ 02229f7a5100] pixel_format=yuyv422 min s=352x240 fps=25 max s=352x240 fps=29.97 [dshow @ 02229f7a5100] pixel_format=yuyv422 min s=720x352 fps=25 max s=720x352 fps=29.97 [dshow @ 02229f7a5100] pixel_format=yuyv422 min s=704x576 fps=25 max s=704x576 fps=29.97 [dshow @ 02229f7a5100] pixel_format=yuyv422 min s=704x480 fps=25 max s=704x480 fps=29.97 [dshow @ 02229f7a5100] pixel_format=yuyv422 min s=704x512 fps=25 max s=704x512 fps=29.97 [dshow @ 02229f7a5100] pixel_format=yuyv422 min s=624x256 fps=25 max s=624x256 fps=29.97 [dshow @ 02229f7a5100] pixel_format=yuyv422 min s=624x240 fps=25 max s=624x240 fps=29.97 [dshow @ 02229f7a5100] pixel_format=yuyv422 min s=544x480 fps=25 max s=544x480 fps=29.97 [dshow @ 02229f7a5100] pixel_format=yuyv422 min s=544x384 fps=25 max s=544x384 fps=29.97 [dshow @ 02229f7a5100] pixel_format=yuyv422 min s=352x256 fps=25 max s=352x256 fps=29.97 [dshow @ 02229f7a5100] Pin "~Audio" (alternative pin name "1") [dshow @ 02229f7a5100] Pin "I2S Audio" (alternative pin name "3") [dshow @ 02229f7a5100] Crossbar Switching Information for Hauppauge WinTV-7164 Analog Capture: [dshow @ 02229f7a5100] Crossbar Output pin 0: "Video Decoder" related output pin: 1 current input pin: 2 compatible input pins: 0 2 3 4 6 7 8
[FFmpeg-user] Can ffmpeg calculate the min and max bitrate of a video?
Hi, ffprobe / ffmpeg can show a video's avg. bitrate easily enough but I would like the option for ffmpeg to scan an entire video file (if need be, I don't think this info is stored anywhere) to find out the lowest (min) bitrate of a video stream as well as the highest (max) bitrate it uses and print them. Ideally it would be nice if x264 / Handbrake's logs showed you these values when encoding, but unfortunately they do not. My goal is that I'd like to know if I'm setting the right "L" encoding level or if it can be lower / higher. (e.g., 3.0 or 3.1 for DVDs). I realize the profile can probably change this but sometimes the "Auto" Encoder Level in Handbrake is all over the place instead of consistently say, L3.0 for all NTSC DVDs. This has been asked on Stack Exchange before by someone else here: https://video.stackexchange.com/questions/21661/is-there-any-ffmpeg-command-for-knowing-max-bit-rate-of-a-video . The only problem is people are suggesting running scripts and other hacks in order to do this instead of ffmpeg being able to just do it itself. I'm on Windows 11 so I don't know how easy it would be to run these scripts others wrote and I'd rather get an official answer from ffmpeg instead of some script that might not even work properly or give me accurate information. Any help is greatly appreciated. Thank you. -- smu johnson ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] FFMPEG opencl hwaccel, opencl tonemap, vulcan hw accel for record desktop/streaming
On Tue, 3 May 2022 at 15:13, KoreanFanOfficial wrote: > > ffmpeg -y -vsync 0 -r 25 -video_size 1920x1080 -f x11grab -i :0 -f alsa -i > default -vf 'scale=1280x720,format=nv12' -c:v libx264 -preset ultrafast > -profile baseline -sws_flags fast_bilinear -b:v 4500k -maxrate 4500k > -minrate 4500k -bufsize 4500k -c:a aac -b:a 96k -f flv soft.flv > this is my default command for record I cannot see what you are tonemapping. replace your c:v libx264 with -c:v h264_mf and omit -preset ultrafast -profile baseline -sws_flags fast_bilinear. I think -vf 'scale=1280x720,format=nv12' is needed when you use other hardware acceleration. Def > > вт, 3 мая 2022 г. в 09:41, Def Etienne : > > > > > ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] Hauppauge WinTV-7164 Analog Composite/S-Video Capture
I've found, after searching Google, the following on Linux pulls the entire video+audio stream successfully: $ cat /dev/video0 | ffplay - or, $ ffmpeg -i file:/dev/video0 Now to see if doing so within Windows does the same, likely omitting the "-f dshow", similar to omitting the "-f v4l2" on Linux. - Forwarded message from Roger - Subject: Hauppauge WinTV-7164 Analog Composite/S-Video Capture Date: Sat, 30 Apr 2022 14:50:31 -0400 From: Roger To: ffmpeg-user@ffmpeg.org Seems I'm plagued by the same bug as described here: https://stackoverflow.com/questions/19113197/ffmpeg-directshow-capture-2-pins Hauppauge WinTV-7164 Analog Composite/S-Video Capture Using this device trying to capture composite/s-video from VCR/VHS media. dshow device: "Hauppauge WinTV-7164 Analog Capture" (NTSC Model 2250) This Hauppauge PCIe device, likely many Hauppuage video capture cards, capture a video stream already combined with an audio stream. The bug and fix posted to stackoverflow is similar. When specifying the following, either with/without ~Audio (pin 1), I do get an audio stream detected, but the audio stream is null/silent: D:\record-ffmpeg>ffplay -f dshow -rtbufsize 500M -video_size 720x480 -framerate 29.97 -audio_pin_name ~Audio -show_video_device_dialog false -i video="Hauppauge WinTV-7164 Analog Capture":audio="Hauppauge WinTV-7164 Analog Capture" D:\record-ffmpeg>ffplay -f dshow -video_size 352x288 -i video="Hauppauge WinTV-7164 Analog Capture":audio="Hauppauge WinTV-7164 Analog Capture" ffplay version 5.0.1-full_build-www.gyan.dev Copyright (c) 2003-2022 the FFmpeg developers built with gcc 11.2.0 (Rev7, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libdavs2 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint libavutil 57. 17.100 / 57. 17.100 libavcodec 59. 18.100 / 59. 18.100 libavformat59. 16.100 / 59. 16.100 libavdevice59. 4.100 / 59. 4.100 libavfilter 8. 24.100 / 8. 24.100 libswscale 6. 4.100 / 6. 4.100 libswresample 4. 3.100 / 4. 3.100 libpostproc56. 3.100 / 56. 3.100 [dshow @ 020e9bb04f00] Could not find audio only device with name [Hauppauge WinTV-7164 Analog Capture] among source devices of type audio. [dshow @ 020e9bb04f00] Searching for audio device within video devices for Hauppauge WinTV-7164 Analog Capture Input #0, dshow, from 'video=Hauppauge WinTV-7164 Analog Capture:audio=Hauppauge WinTV-7164 Analog Capture': Duration: N/A, start: 3738.527811, bitrate: 1536 kb/s Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 352x288, 29.97 fps, 29.97 tbr, 1k tbn Stream #0:1: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s 3740.13 A-V: -0.010 fd= 0 aq=0KB vq=0KB sq=0B f=0/0 D:\record-ffmpeg> It's possible the fix was, possibly a hack/workaround, specifically applied only for certain devices such as "AJA Capture Source". Many Hauppauge capture cards should be added as well. Sometimes right after booting into Windows 10, I may get ffplay to play audio only with a blue screen. Subsequent ffplay executions drop audio, with a blue screen, until either Hauppauge's WinTV10 or VirtualDub64 are subsequently executed, likely properly initializing the video capture card. Subsequent ffplay executions show video properly but again without audio, only stating the video/audio stream specifications. Nor is the audio stream recorded to file using ffmpeg. - End forwarded message - signature.asc Description: PGP signature ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org
Re: [FFmpeg-user] FFMPEG opencl hwaccel, opencl tonemap, vulcan hw accel for record desktop/streaming
ffmpeg -y -vsync 0 -r 25 -video_size 1920x1080 -f x11grab -i :0 -f alsa -i default -vf 'scale=1280x720,format=nv12' -c:v libx264 -preset ultrafast -profile baseline -sws_flags fast_bilinear -b:v 4500k -maxrate 4500k -minrate 4500k -bufsize 4500k -c:a aac -b:a 96k -f flv soft.flv this is my default command for record вт, 3 мая 2022 г. в 09:41, Def Etienne : > > > Sent from my iPhone > > > On 3 May 2022, at 06:10, KoreanFanOfficial > wrote: > > > > How i can use those option for desktop record/streaming with software > > encoder, cant find working ffmpeg code > > Could you please give a sample command line that does not use them. > > I am assuming that you just want to use hardware acceleration for > screencasting, in which case you do not need to use all the options at > once. > > Def > > > ___ > > ffmpeg-user mailing list > > ffmpeg-user@ffmpeg.org > > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > > To unsubscribe, visit link above, or email > > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
Re: [FFmpeg-user] FFMPEG opencl hwaccel, opencl tonemap, vulcan hw accel for record desktop/streaming
Sent from my iPhone > On 3 May 2022, at 06:10, KoreanFanOfficial > wrote: > > How i can use those option for desktop record/streaming with software > encoder, cant find working ffmpeg code Could you please give a sample command line that does not use them. I am assuming that you just want to use hardware acceleration for screencasting, in which case you do not need to use all the options at once. Def > ___ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
