Ffmpeg qsv encode example their most simple example for QSV transcode is ffmpeg -hwaccel qsv -c:v h264_qsv -i input. To encode HEVC/H. mp4. 05 - FFmpeg 2. 8 and newer, available from I compared it for a h264 encoded video. For continued support and access to new features, Intel Media SDK users are encouraged to read the transition guide on upgrading from Intel® Media SDK to Intel® Video Processing Library (VPL), and to move to VPL as soon as possible. e. Installation is covered in a separate white paper: Intel® Quick Sync Video and capabilities of Intel® Opus encoder. References: See the encoder options, including rate control methods supported: ffmpeg -h encoder=vp9_qsv On the vpp_qsv filter usage, see: ffmpeg -h filter=vpp_qsv Warning: Note that the SDK requires at least 2 threads to prevent deadlock, see this code block. ffmpeg. g: - qsv_transcode input. 3. 1 Options b. Jun 2, 2024 · Encoder hevc_qsv [HEVC (Intel Quick Sync Video acceleration)]: General capabilities: delay hybrid : Threading capabilities: none: Supported hardware devices: qsv qsv qsv : Supported pixel formats: nv12 p010le p012le yuyv422 y210le qsv bgra x2rgb10le vuyx xv30le: hevc_qsv encoder AVOptions:-async_depth <int> E. May 24, 2022 · I'm using Intel QuickSync to lower CPU loading of real time video transcode with FFmpeg. 8. Encode HEVC/H. Currently, it’s in development and only implements the CELT part of the codec. x; Ubuntu 20. mts" -c:a aac -c:v h264_qsv -preset veryslow -vf "vpp_qsv=cw=628:cx=0:w=640:h=480" -q:v 30 "output. Jan 8, 2017 · Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all See ffmpeg -help encoder=libaom-av1 for the supported pixel formats. 04 - FFmpeg 3. Use ffmpeg -h filter=vpp_qsv for getting the filter documentation (vpp_qsv is working in Windows, but I never tried it in Linux). These are intended to coexist as hardware accelerated decode/encode options along with other software implementations. Ubuntu 16. 0 and above - all examples are compilable; FFmpeg 3. x; Ubuntu 18. * @file Intel QSV-accelerated video transcoding API usage example * @example qsv_transcode. Jul 22, 2022 · Intel's QSV VP9 encoder wrapper implementation in FFmpeg is only supported on Linux at the moment. Jan 8, 2017 · Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all Oct 9, 2020 · In general, -hwaccel option actually applies to the input stream, i. Sep 29, 2024 · Check supported qsv encoder list ffmpeg -encoders|grep qsv Check private option list of h264 encoder ffmpeg -h encoder=h264_qsv Encode a 1080p raw yuv input as H264 with 5Mbps using VBR mode ffmpeg -init_hw_device qsv=hw -filter_hw_device hw -f rawvideo -pix_fmt yuv420p -s:v 1920x1080 -i input. Going to slower instead would result in about 100% more time needed (i. Because of a bug present in FFmpeg versions prior to 4. If the first component is QSV decoder, then it will apply to it and QSV encoder (2nd in the pipeline) will pick the same device thru the frames context. 04 - FFmpeg 4. The video codecs of the input and the output must be supported by the hardware, and there are other "usual" limitations (like supported pixel format and maximum resolution). 265 stream. A special HW module is used for the encoding side. In the picture you can see the load of the GPU. 4, the first frame will not be losslessly preserved (the issue was fixed on March 21, 2021). * @example qsv_decode. it will take twice as long). It works very well, but I'd like to do many streams in parallel (ie, launch multiple FFmpeg processes each transcoding different streams). 2. org page. mkv -vcodec mjpeg_qsv images/%06d. 265 by QSV hw-encoder you need instruct ffmpeg to use hw-accelerator ‘qsv’ by ‘-hwaccel qsv’, apply HEVC hw-encoder by ‘c:v hevc_qsv’, in addition you need load hevc plugin (see the example command line). c * Perform QSV-accelerated transcoding and show to dynamically change FFmpeg* 2. Input: raw video in the format yuv420p. By experimentation, I've found that this works: ffmpeg -hide_banner -init_hw_device qsv=qsv -hwaccel qsv -i "input. – Dec 9, 2020 · VAAPI tends to be more stable overall than QSV. FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. 8. mp4 "g 60" Mar 19, 2018 · The Intel Media SDK project is no longer active. Specifically, qsv is used to deinterlace and decode the input video. 17 1. mp4 -vf 'format=qsv,hwupload=extra_hw_frames=64' \ -c:v hevc_qsv \ -bf Jan 8, 2017 · Perform QSV-accelerated transcoding and show to dynamically change encoder's options. See this commit for more details, specifically because VP9 encoding is tied to the low-power mode(s) exposed by the iHD driver's VDENC interface(s). Installing FFmpeg with Intel® Media Quick Sync Video (Intel® QSV) hardware acceleration support Where to get FFmpeg with Intel® Quick Sync Video (Intel® QSV) updates Support for _qsv codecs is included in FFmpeg 2. x and 2. Dec 12, 2024 · Here is an example that shows the (normalized) encoding time for a two-pass encode of a 1080p video: Going from medium to slow , the time needed increases by about 40%. 264 decoding with output frames in the Mar 22, 2022 · It is possible if both Intel HD Graphics and NVIDIA GPUs are present, enabled, have propriate drivers, and the FFmpeg version supports it. Dec 9, 2020 · VAAPI tends to be more stable overall than QSV. Feb 19, 2024 · I recommend you to start with a simple question, and check if you are getting answered. Apr 23, 2019 · Typically, you will need to initialize a hardware device that will be used by both the encoder(s) in use and filtering, as shown in the example below: ffmpeg -y -loglevel debug -init_hw_device qsv=hw -filter_hw_device hw -hwaccel qsv -hwaccel_output_format qsv \ -i simpsons. 264 decoding with output frames in the GPU video surfaces. Lossless encoding. . Its quality is usually worse and at best is equal to the libopus encoder. Set bit rate in bits/s. Usage: qsv_transcode input_stream codec output_stream initial option { frame_number new_option } e. GitHub Gist: instantly share code, notes, and snippets. 4. Members Online ambiance6462 This shows that two decoder/encoders are ready to use (h264_qsv, mpeg2_qsv) and one decoder (vc1_qsv). mp4 "g 60" your command string is more complex than the sample ones from the trac. jpg The example is minimalistic and can be improved in many ways. mp4 -c:v h264_qsv -global_quality 25 output. In case you don't want hybrid (CPU / GPU) pipeline, replace scale with scale_qsv and use vpp_qsv for unsharping. This is a native FFmpeg encoder for the Opus format. ffmpeg -h encoder=hevc_qsv is supposed to give you a list of all the codec specific options. yuv -vf hwupload=extra_hw_frames=64,format=qsv -c:v Aug 22, 2022 · NVenc is said to be better than QSV. 4 - hw_decode and transcode_aac aren't compilable, but the rest is; FFmpeg 3. does that work for you in a test run ? qsv d3d11va qsv cuvid . Also be aware Google search is treating hevc_qsv as a synonym for h264_qsv, so searches will often find irrelevant information if you’re not careful. 17 Aug 22, 2022 · NVenc is said to be better than QSV. A GitHub repository for FFmpeg development, featuring examples and documentation for encoding video. the device which will be used by a hardware encoder/d Contribute to FFmpeg/FFmpeg development by creating an account on GitHub. First with the QSV jpeg encoder: ffmpeg -c:v h264_qsv -i myvideo. c * * Perform QSV-accelerated H. x (currently) Here are implications of using different version of FFmpeg: FFmpeg 4. Jan 8, 2017 · Perform QSV-accelerated transcoding and show to dynamically change encoder's options. mp4 h264_qsv output_h264. 8 and forward includes Intel® Quick Sync Video accelerated h264_qsv, mpeg2_qsv, and hevc_qsv codecs. mp4" I can add other things to the Jan 8, 2017 · This example shows how to do QSV-accelerated H. V. jpg and afterwards without mjpeg_qsv: ffmpeg -c:v h264_qsv -i myvideo. x aren't tested and are out of the focus Aug 2, 2021 · The few examples I've been able to find in various places (including stackoverflow) do not work. to the 1st component in the pipeline. These provide a fast time-to-market path to server transcode solutions based on Intel® Xeon® processors with processor graphics. Use -crf 0 for lossless encoding. mkv images/%06d. If unspecified it uses the number of channels and the layout to make a good guess Jan 8, 2017 · Generated on Mon Apr 7 2025 19:23:42 for FFmpeg by 1. Target bitrate: 10 Mbps Aug 4, 2024 · ffmpeg -h encoder=h264_qsv. wfqgbmqpluwvfhcwvmbhxngumnblyrehybigwyabwleclkaajkotntxdcerfwemwmbmohdmlcxoam