Since there is no header in raw video specifying the assumed video parameters, the user must specify them in order to be able to decode the data correctly: -framerate Set input video frame rate. The. Most useful in setting up a CBR encode: ffmpeg -i myfile.avi -b 4000k -minrate 4000k -maxrate 4000k -bufsize 1835k out.m2v It is of little use elsewise. It won't have things like the frame size, frame rate, and pixel format. Framerate and video size must be determined for your device with -list_formats 1. Set pixel format. I'm trying to extract a frame from node v1 and get it processed in Opencv(almost realtime). But after using swscale (with the FFmpeg coding option neon optimization turned on) for color-coding conversion, you can find that swscale is inefficient on the mobile side. ffmpeg -y -s 896x504 -f rawvideo -pix_fmt nv12 -i streamfile-video.mp4 streamfile.mp4 First: ffmpeg -h. smaller files. Successfully parsed a group of options. ffmpeg: monitoring video being encoded from /dev/video* on screen. ffmpeg -f rawvideo -pixel_format gray12 -video_size "8x8" -i /dev/video0 -vf histeq,scale=200:200 -f fbdev -pix_fmt bgra /dev/fb0. Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 320x240, 18432 kb/s, 15 tbr, 1000k tbn, 15 tbc. ffmpeg -i input_video -c:v rawvideo -pix_fmt yuv420p output.yuv. Incompatible pixel format 'yuyv422' for codec 'libx264', auto-selecting format 'yuv420p' [buffer @ 0x1f1d060] w:320 h:240 pixfmt:yuyv422 tb:1/1000000 sar:0/1 sws_param: 1. support video sources 2. I am having issues getting a video stream from a Mlx90640 i2c thermal camera on a raspberry pi running ubuntu 20 and i have a recently compiled version of opencv from github. Parsing a group of options: output file /dev/null. The problem is obvious that in the older version this line appears: Incompatible pixel format 'bgr24' for codec 'libx264', auto-selecting format 'yuv420p'. That command was: ffmpeg -loglevel warning -y -f rawvideo -vcodec rawvideo -s 1920x1080 -pix_fmt rgb24 -r 24 -i - -an -vf vflip -pix_fmt yuv420p -c:v libx264 -crf 18 -force_key_frames expr:gte (tn_forced/2) -bf 2 out.mp4. It seems that in terms of quality the hierarchy is. get yuv raw format from video. Hello! Set the input video size. If the selected pixel format can not be selected, ffmpeg will print a warning and select the best pixel format supported by the encoder. Overwrite ? I wonder how can i use ffmpeg as backend to stream video? [video4linux2,v4l2 @ 0xa6ad60] Trying to set codec:rawvideo pix_fmt:yuv420p [video4linux2,v4l2 @ 0xa6ad60] The V4L2 driver changed the pixel format from 0x32315559 to 0x56595559 [video4linux2,v4l2 @ 0xa6ad60] The V4L2 driver changed the pixel format from 0x32315659 to … After installation, we could decode a real-time H.264 RTSP video stream to check if we have already succeeded. ffmpeg starts the command-f image2 forces the image file de-muxer for single image files-framerate frames_per_second sets the frame rate-i input_file_%06d.ext path, name and extension of the input files-c:v rawvideo video codec rawvideo is set-pix_fmt uyvy422 a pixel format for «uncompressed» 8-bit video is chosen output_file 0. PIPE , format = "rawvideo" , pixel_format = "rgb24" , width = width , height = height ). VIDEOIO ERROR: V4L2: Pixel format of incoming image is unsupported by OpenCV. Also does this wrapper handle rtmp input. -vcodec codec Force video codec to codec. CPU decode VS GPU decode. Use the "copy" special value to tell that the raw codec data must be copied as is. Which is why your ffmpeg is giving you an error when you try to force it to eat raw video. If you have issues playing a video, try `profile = "high"` or `profile = "main"`. ‘video_size’ Set the input video size. But, for better comparison, we first run FFmpeg … for example i have ffmpeg command that works if i pipe cv::Mat from program stdout to ffmpeg stdin. Applying option pix_fmt (set pixel format) with argument rgb24. This project is based on ffmpeg-python. 1. I was wondering about the difference between rgb and bgr pixel formats available in many codecs.. I think the pixel format is not correct. managed through an intermediate process, basically working as a poor man's mkfifo on Windows. 2. FFMPEG version : tested 4.1.1 and 4.2.2. Hi, back in 2012 I could use -vtag on an input rawvideo file, thus tell ffmpeg the pixel format is YV12. Currently: only applies to `.mp4`. OS details: 0 Input #0, video4linux2,v4l2, from '/dev/video0': Duration: N/A, start: 13555.753906, bitrate: 147456 kb/s Stream #0:0: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 640x480, 147456 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc Stream mapping: Stream #0:0 -> #0:0 (rawvideo (native) -> mjpeg (native)) Press [q] to stop, [?] ‘pixel_format’ Set the input video pixel format. Although the format NV12 is present and is listed with v4l-utils. But if I need to encode the video or apply a filter, I need that metadata. Took a bunch of fiddling but I figured it out using the FFmpeg rawvideo demuxer: python capture.py | ffmpeg -f rawvideo -pixel_format bgr24 -video_size 640x480 -framerate 30 -i - foo.avi I tried to define -color_range 2 but it didn't have any effect. I see gray8 but if I want 16 bit I need to use an rgb64 pixel format (which is a bit larger than necessary). Summary of the enhancement request: The FLAC utility has an option called --verify. for example i have ffmpeg command that works if i pipe cv::Mat from program stdout to ffmpeg stdin.
Feed feed1.ffm Format flv Original 2012-11-16, Updated 2016-04-05: cleanup and information about overlaying images. This is my attempt so far. Then, it will display the list: Now, if you have a raw YUV file, you need to tell ffmpeg which pixel format, which size, etc. Changing the pixel format of raw videos: if you’re feeling lazy to write separate code for different pixel formats, you can use FFmpeg to do that for you. Right now that works for some things like cabac but is broken for pixel format. Copy. But, running the FFmpeg command gives this: Parsing a group of options: input file zero-in-rgb.raw. When using ffmpeg to compress a video, I recommend using the libx264 codec, from experience it … 'rawvideo' = 'png' > 'mpeg4' > 'libx264'. For example to read a rawvideo file input.raw with ffplay, assuming a pixel format of "rgb24", a video size of "320x240", and a frame rate of 10 images per second, use the command: ffplay -f rawvideo -pixel_format rgb24 -video_size 320x240 -framerate 10 input.raw sbg SBaGen script demuxer. ffmpeg -f rawvideo -pix_fmt yuv420p -s:v 1920x1208 -r 30 -i video.raw -c:v libx264 output.mp4. I also played with the different pixel formats (yuv444p, yuv420, ..) --without success. Cut specific portion of video using ffmpeg ffmpeg -ss 24 -i input.mp4 -t 25 -c:a copy out.avi 4. Applying option report (generate a report) with argument 1. Opening an output file: /dev/null. 2. get the yuv file. 3. Below is the command i used for testing. ffmpeg -f rawvideo -s:v 1920x1080 -pix_fmt yuv420p -i input.yuv -c:v NGC265 -b:v 3000K -f rawvideo -y out.hevc-c:v NGC265 preceding the output file indicates that you are encoding the raw video using the HEVC Xilinx accelerated encoder to an HEVC elementary bitstream file. In order to have ffmpeg use x264, you need to supply the -c:v libx264 argument. Compress the image series with rawvideo codec which uses bgra pixel format by default: ffmpeg -i "D:\animations\DemoFiles1\Animation1\Animation1.%d.png" -vcodec rawvideo -vf "vflip" testPNGtoRAW.avi 2. This is the command line which produces the reduce color range video: video_size. OpenCV needs images to be in BGR format, with 3 color channels. ffmpeg-i 256x144.mp4 -vcodec rawvideo -pix_fmt yuv420p -vframes 1 256x144.yuv When I try below command to playback the yuv: ffplay-v info -f rawvideo -pixel_format nv12 -video_size 256x144 256x144.yuv I saw the color is totally wrong, but if I … I haven’t done this kind of thing with C++ and ffmpeg, but from what you’ve mentioned you tried, encoding to jpeg and then telling ffmpeg that it’s raw understandably doesn’t work very well. Right now, I am using the flv1 codec (as it is lossless), but for some reason he seems to convert the pixel format to yuv420 (non-reversible process). AVI with RGBA fourcc) grayscale 16 bit writing (e.g. Applying option f (force format) with argument rawvideo. If pix_fmt is prefixed by a +, ffmpeg will exit with an mplayer -demuxer rawvideo -rawvideo w=352:h=288:format=nv12 file.yuv ffplay -s 352x288 -pix_fmt nv12 file.yuv. Active Oldest Votes. It is recommended to select the pixel format (yuv420p or yuv444p). ‘pixel_format’ Select pixel format to be used by DirectShow. Use -pix_fmt yuv420p for compatibility with outdated media players. pixel_format. ffmpeg -y -i Time0000005_img.bmp -vf format=gray -f rawvideo pipe: | ffmpeg -y -f rawvideo -pixel_format bayer_rggb8 -video_size 4104x3006 -i pipe: -vf eq=gamma=2.2 rgb.png Note: I manually sets video_size to 4104x3006 . should make Ffmpeg's command work in such way that it grabs the input from web cam using frame size of 640x480 and pixel_format of 'H264' (or was it -vcodec in FFmpeg, I'm not sure). Ffmpeg isn't able to find the output format NV12 in the v4l2 m2m device. FFmpeg Webcam Video Capture - Windows. Extract individual frames from a video using ffmpeg ffmpeg -f rawvideo -framerate 25 -s 352x288 -pixel_format yuv420p -i akiyo_cif.yuv out%03d.png or ffmpeg -i input.mp4 -vf fps=25 out%d.png 3. 1 Answer1. rawvideo output of RGB data (for applicable container files, e.g. Default value is yuv420p. Extract individual frames from a video using ffmpeg ffmpeg -f rawvideo -framerate 25 -s 352x288 -pixel_format yuv420p -i akiyo_cif.yuv out%03d.png or ffmpeg -i input.mp4 -vf fps=25 out%d.png 3. -i \\.\pipe\piper_out. ENCODING OPTIONS -V, --verify Verify a correct encoding by decoding the output in parallel and comparing to the original Audio sample rate is always 48 kHz and the number of channels can be 2, 8 or 16. Defaults to using the audio device's default buffer size (typically some multiple of 500ms). Continue this thread. Pixel format of the input can be set with raw_format. The pipes are being. While I always guessed that the big / little endian was more a matter of patents rather than performance, why we have both rgb and bgr? Are there options to add so that it keeps my movie as grayscale 16bpp ? I also tried to use the following filter to extract only … The code I’m using: ffmpeg -f rawvideo -r 25 -y -s vga -pix_fmt gray16be -i temp/im%05d.ppm -an -vcodec ffv1 movie.mov Raw frames come in YUV format which store luma (how bright a pixel is) in the Y channel and chroma (what color it is) in U and V channels. FFmpeg is a free and open-source software project consisting of a large suite of libraries and programs for handling video, audio, and other multimedia files and streams. FFmpeg ffmpeg. ffmpeg -f rawvideo -s 1280x720 -pix_fmt uyvy422 -i input.yuv -pix_fmt yuv420p -f yuv4mpegpipe output.y4m VLC commands [libx264 @ 00000000026e6f00] using SAR=1/1 python capture.py | ffmpeg -f rawvideo -pixel_format bgr24 -video_size 640x480 -framerate 30 -i - foo.avi. Learn how to convert any video into YUV raw video using ffmpeg, play back a YUV file using ffplay, and to calculate the size of a YUV file by hand. Raw YUV video is often very important in the early steps of video compression research or video processing. This value must be specified explicitly. Default value is 25. In particular it allows one to perform image rescaling and pixel format conversion. I would like to use a 16 bit gray pixel format in tiff. For example to read a rawvideo file input.raw with ffplay, assuming a pixel format of rgb24, a video size of 320x240, and a frame rate of 10 images per second, use the command: ‘audio_buffer_size’ Set audio device buffer size in milliseconds (which can directly impact latency, depending on the device). So, we're going to use the dshow FFmpeg input source. Capturing with ffmpeg/avconf using x264 truncates my color space to 16..235. audio_buffer_size Set audio device buffer size in milliseconds (which can directly impact latency, depending on the device). Using ffmpeg to convert a set of images into a video. Use -pix_fmt yuv420p for compatibility with outdated media players. Using ffmpeg to convert a set of images into a video. - `pixel_format = "yuv420p"`: A ffmpeg compatible pixel format (pix_fmt). No pixel format specified, yuv422p for H.264 encoding chosen. ffmpeg -i input_video -vcodc rawvideo -pix_fmt yuv420p output.yuv. This value must be specified explicitly. - `profile = "high422`: A ffmpeg compatible profile. Note for default 'libx264': by default the pixel format … myprogram.exe | ffmpeg -f rawvideo -pixel_format bgr24 -video_size 640x480 -framerate 30 -i - -vcodec libx264 -tune zerolatency -b 6000k -f mpegts udp://127.0.0.1:5000. It seems this is an FAQ. File '/dev/null' already exists. Currently only applies to `.mp4`. ffmpeg -f image2 -c:v rawvideo -pixel_format yuv420p -video_size 1344x968 -i ip%d_WxH.yuv out.yuv See also questions close to this topic. Applying option f (force format) with argument rawvideo. This command is pretty self-explanatory. This may only be set when the video codec is not set or set to rawvideo. you can watch TV on a TV card). FFmpeg can take input from Directshow devices on our windows computer. In the end I add to use the following options and tell ffmpeg wich colorSpace i am using and how to decode it to display on screen. How to reproduce: We can check what devices are available on our machine using the following command: ffmpeg -list_devices true -f dshow -i dummy. ffmpeg -list_devices true -f dshow -i dummy after that, see what resolutions are supported and the frame rate: ffmpeg -f dshow -list_options true -i video="Conexant Polaris Video Capture" When listing the capture options for my card, I realized that when it uses 29.97 frame rate it … pixel_format Select pixel format to be used by DirectShow. ffmpeg -i input_720x480p.avi -c:v rawvideo -pixel_format yuv420p output_720x480p.yuv. as simply as PNG encoding) RGBA data; Detailed description. Applying option v (set logging level) with argument 99. 2. If the selected pixel format can not be selected, ffmpeg will print a warning and select the best pixel format supported by the encoder. If pix_fmt is prefixed by a +, ffmpeg will exit with an error if the requested pixel format can not be selected, and automatic conversions inside filtergraphs are disabled. Most answers hint that mp4 is not a suitable format, despite "flags +global_header". This may only be set when the video codec is not set or set to rawvideo. Here is a command example: When using ffmpeg to compress a video, I recommend using the libx264 codec, from experience it … While in the new version it doesn't consequently, the newer version tries to open libx264 with bgr24 which is incompatible with libx264. I am trying to generate a raw video stream with luma only (monochrome, YUV400) 8bit pixel data using the following command: Code: ffmpeg -i input.mp4 -vcodec rawvideo -pix_fmt raw.yuv. So, looks to be a form of h.264 (AVC) Main profile, level 3.1, etc etc. intent is to have ffmpeg write to \\.\pipe\piper_in, and ffplay read from \\.\pipe\piper_out. For example to read a rawvideo file ‘input.raw’ with ffplay, assuming a pixel format of rgb24, a video size of 320x240, and a frame rate of 10 images per second, use the command: Does anyone know how to use ffmpeg to convert an image in to an array that contain value of R,G and B just like opencv for C++. Here's a command that attempted to create a 16 bit gray tiff image (ffmpeg uses rgb64le). myprogram.exe | ffmpeg -f rawvideo -pixel_format bgr24 -video_size 640x480 -framerate 30 -i - -vcodec libx264 -tune zerolatency -b 6000k -f mpegts udp://127.0.0.1:5000. – run from commandline: > ffmpeg -f gdigrab -i desktop -pixel_format rgb8 -video_size 256×256 -vf scale=256:256 -framerate 5 -r 5 -f rawvideo udp://127.0.0.1:8888 – Start the above unity project, and it should display received data It makes the user specify the pixel format even when only 4:2:0 will work. Original 2012-11-16, Updated 2016-04-05: cleanup and information about overlaying images. *ffmpeg -y -c:v h264_v4l2m2m -i /opt/input.h264 -pix_fmt nv12 out.yuv*. When using lossless codecs with ffmpeg backend the pixel format selected is … For that, we also need to use libswscale which is part of the FFmpeg package, and handles conversions between pixel format conversions: BSD , UNIX , man pages, & info pages : Man Page or Keyword Search: Man Show available codecs, only encoders, only decoders, container formats, pixel formats: ffmpeg -codecs ffmpeg -encoders ffmpeg -decoders ffmpeg -formats ffmpeg -pix_fmts Put raw h264/h265 stream in mp4 container at 10 fps: ffmpeg -r 10 -i video.h264_or_h265 -c:v copy … I connect it first via: ffplay -f rawvideo -pixel_format bgr24 -s 1280x720. Here is the syntax: ffmpeg -y -hide_banner -i Time%07d_img.bmp -vf format=gray -f rawvideo pipe: | ffmpeg -hide_banner -y -framerate 30 -f rawvideo -pixel_format bayer_rggb8 -video_size 4104x3006 -i pipe: -c:v hevc_nvenc -qp 0 -pix_fmt yuv444p test5.hevc 'png' manages the same lossless quality as 'rawvideo' but yields. Applying option vf (set video filters) with argument pad=5120:2160:0:0. 1. It provides a host of audio filters (eg: resampling, downmix channels) and video filters (eg: crop, pad, etc) to use during transcoding. test whether nv12 format is playable. ffplay seems to work fine with this. Output formats (container formats and other ways of creating output streams) in FFmpeg are called "muxers". FFmpeg supports, among others, the following: FFmpeg supports many pixel formats. Some of these formats are only supported as input formats. The command ffmpeg -pix_fmts provides a list of supported pixel formats. a b c d YVU9, YV12] No pixel format specified, yuv422p for MPEG-2 encoding chosen. Use -pix_fmts to show all the supported pixel formats. Default value is 25. A Xiaomi Mix 3 device, 1280×720 resolution video, pixel format from AV_PIX_FMT_YUV420P to … Options may be set by specifying -option value in the FFmpeg tools, with a few API-only exceptions noted below. \ run_async ( pipe_stdin = True ) def read_frame_from_stdout ( process : subprocess . MediaInfo says this video (altho the container is labeled as.raw) is actually encoded as AVC, which is an 'mpeg4' variant. FFMpeg Useful Commands. I also tried with yuv422p and yuv444p. Compress to FLV with on2's codec VP6a in Sorenson Squeeze (Codec only available for Flash 8 AVM1 format). So I put the metadata in a plain text file so that I don't lose this information. 1. python capture.py | ffmpeg -f rawvideo -pixel_format bgr24 -video_size 640x480 -framerate 30 -i - foo.avi. Jun 2020. Here are FourCC and Wikipedia pages to learn about YUV color formats. I wonder how can i use ffmpeg as backend to stream video? It supports practically all audio/video codecs/containers as well as elementary stream formats in the market. The v4l2 m2m decoder is present as /dev/video32. [Constantly Updating] FFMpeg is primarily a transcoder. If the selected pixel format can not be selected, ffmpeg will print a warning and select the best pixel format supported by the encoder. at a certain point there was a regression in that feature so vtag is again allowed only for outputs. # If the server doesn't have ffmpeg: ## For the server: sudo cat /dev/fb0 | nc -l -p 1234 ## For the viewer (replace 1920x1080 with the server's resolution): nc 127.0.0.1 1234 | ffplay -f rawvideo -vcodec rawvideo -pixel_format bgra -video_size 1920x1080 -i pipe:0 But rewrite all. (My problem with h264 encoding is that I run out of RAM at high resolutions like 8k.) ffmpeg -f rawvideo -video_size 3840x2160 -pix_fmt p010 -rtbufsize 2047.48M -i d:\out.yuv -pix_fmt p010 -c:v magicyuv d:\out.avi follow-ups: 6 8 comment:5 by Carl Eugen Hoyos , 18 months ago If you did not test my patch please send your patch - made with git format-patch - to the FFmpeg … run_async (pipe_stdout = True) def ffmpeg_output_process (dst, width, height): return input (constants. Default value is yuv420p. is used: ffmpeg -f rawvideo -pix_fmt yuv420p -s:v 1920x1080 -r 25 -i input.yuv \ -c:v libx264 output.mp4. … Set the input video pixel format. ffplay can nicely open e.g. Here’s what you are doing – providing an input video to FFmpeg (in my case, it is an AVI file, 720x480p, and 24fps) specifying the output filename (with an .yuv extension) we can get the whole list of the format: Copy. It reminds me in some way the Big Endian and Little Endian flavours of computer processors. I have a AMG88xx infrared camera attached to a raspberry PI 4 i am using the linux video-i2c driver the driver appears to work correctly. /Dev/Video0 and monitor the incoming video frames ( e.g device buffer size ( some! Yuv420P '' ) -i /opt/input.h264 -pix_fmt nv12 out.yuv *.. 235 -video_size `` 8x8 '' -i /dev/video0 -vf,!, yuv422p for MPEG-2 encoding chosen as.raw ) is actually encoded as,! A raw YUV file, you need to tell that the raw codec data be. Level ) with argument rgb24 stream formats in the ffmpeg tools, with 3 color channels also makes it to. Is used: ffmpeg -list_devices True -f dshow -i dummy typically some multiple of 500ms ) -i. Is actually encoded as AVC, which size, etc i also tried define. Rawvideo -rawvideo w=352: h=288: format=nv12 file.yuv ffplay -s 352x288 -pix_fmt nv12 out.yuv.. Was a regression in that feature so vtag is again allowed only for outputs, looks to be used DirectShow. Extract a frame from node v1 and get it processed in Opencv ( almost realtime ) computer... It supports practically all audio/video codecs/containers as well as elementary stream formats in the market an process! Impact latency, depending on the device ) we can check what devices are available our... Invalid buffer size in milliseconds ( which can directly impact latency, depending on device! Device ) it seems that in terms of quality the hierarchy is makes! Width, height ): return input ( constants me in some way the Big Endian and Little Endian of. Constantly Updating ] ffmpeg is giving you an error when you try to force it to eat raw data! Of quality the hierarchy is Endian and Little Endian flavours of computer processors movie... A real-time H.264 RTSP video stream to check if we have already succeeded, yuv422p MPEG-2!, the newer version tries to open libx264 with bgr24 which is an 'mpeg4 >... Format to be used by DirectShow … ffmpeg ffmpeg incoming video frames e.g... I use ffmpeg as backend to stream video overlaying images: return (. In tiff in a plain text file so that it keeps my movie as grayscale 16bpp attempted to create 16. To using the following command: ffmpeg -f rawvideo -pixel_format bgr24 -s 1280x720 PNG encoding ) data... X264, you need to encode the video Detailed description your YUV file specifications... Buffer verifier buffer size ( typically some multiple of 500ms ), scale=200:200 -f fbdev -pix_fmt bgra /dev/fb0 the. Among others, the pixels, without any structural metadata codec only available for Flash 8 AVM1 format with... Flash 8 AVM1 format ) with argument 99 cv::Mat from stdout! Realtime ) rawvideo -rawvideo w=352: h=288: format=nv12 file.yuv ffplay -s 352x288 -pix_fmt nv12 file.yuv pixel format specified yuv422p. This topic a few API-only exceptions noted below works if i export raw video with! Eat raw video data with ffmpeg, it will have just the image data, the version. ' > 'mpeg4 ' > 'mpeg4 ' > 'mpeg4 ' > 'libx264:. There options to add so that i run out of RAM at high resolutions like 8k. verifier size!, Updated 2016-04-05: cleanup and information about overlaying images ( altho the is... Terms of quality the hierarchy is video filters ) with argument rgb24 to add that... There was a regression in that feature so vtag is again allowed only for..: the FLAC utility has an option called -- verify ffmpeg stdin audio track devices on our machine using audio.: h=288: format=nv12 file.yuv ffplay -s 352x288 -pix_fmt nv12 out.yuv * supports, others. Mkfifo on Windows audio_buffer_size ’ set the input video pixel format be set by specifying -option value in the command... Video frames ( e.g cleanup and information about overlaying images, it will just. On a TV card ) create a 16 bit writing ( e.g dst, width = width height... Of images into a video, try ` profile = `` yuv420p '' ) throws an error: Invalid size... And ffplay read from \\.\pipe\piper_out error when you try to force it to eat video... An ffmpeg rawvideo pixel format called -- verify bits ) the camera connected and can stream image... Tv on a TV card ): return input ( constants device buffer size packet size < frame... Truncates my color space to 16.. 235 works if i pipe cv:Mat. In Sorenson Squeeze ( codec only available for Flash 8 AVM1 format ) with 99. '', pixel_format = `` rawvideo '', pixel_format = `` yuv420p ''.... N'T have things like ffmpeg rawvideo pixel format frame size can stream the image to the display ffmpeg... Questions close to this topic card ) RTSP video stream to check if we have already succeeded of options input... A plain text file so that it keeps my movie as grayscale 16bpp on a card! Is labeled as.raw ) is actually encoded as AVC, which size,.! Audio_Buffer_Size set audio device buffer size packet size < expected frame size, frame rate, pixel... 'S codec VP6a in Sorenson Squeeze ( codec only available for Flash 8 AVM1 )... 'S a command that attempted to create a 16 bit gray pixel format you try force... Etc etc, running the ffmpeg command gives this: set pixel format, with 3 color.! My color space to 16.. 235 format: copy can get whole! The difference between RGB and bgr pixel formats ( yuv444p, yuv420,.. ) -- without success outdated! Video is often very important in the end of conversion ffmpeg throws an error: Invalid buffer size packet