Videotoolbox codec QSV competes with similar frameworks like Nvidia's NVENC & AMD's AMF (Since the transition to Apple Silicon, QSV on Intel Macs competes with Apple's VideoToolBox on macOS devices). 265 dolby vision Hardware decoder available for codec: AV1 Hardware decoder available for codec: H. I'm having a hard time figuring out the right set of parameters to get other-transcode and ffmpeg to play nice on transcoding a video. Definition at line 78 of file videotoolbox. Existing data in the destination can be taken into account by providing dst with a dst_offset > 0. 2 Codec Options libavcodec provides some generic global options, which can be set on all the encoders and decoders. LS h264 H. May 21, 2021 · 命令 ffmpeg -codecs | grep videotoolbox 查看支持什么编码 DEV. Expected Behavior Hardware encoder should be found and used by Sunshine (on macOS) Additional Context I see the following message in logs: Error: [h264_videotoolbox ProRes There are four ProRes encoders, Prores, Prores_ks, Prores_aw and prores_videotoolbox, which is a hardware based OSX M1 encoder/decoder (ffmpeg version 5 or higher). 2 Expected Behavior Apple VT H264 Hardware Encoder should appear in video encoder selector dropdown like Dec 7, 2020 · As codecs become more complex, the need for hardware decoding becomes more vital for proper playback without excessive power consumption on battery-powered devices like laptops. Set kVTCompressionPropertyKey_RealTime to kCFBooleanTrue to indicate that this is a live encoding session. 264 hardware encoding to minimize end-to-end latency and achieve new levels of performance for optimal real-time communication and high-quality video playback. That sort of space saving should be interesting to everybody, but especially for those who carry videos around MPEG’s fourth generation video codec introduced radical improvements over previous generations with dramatically decreased bandwidth needs. 1 (20C69) / MacBook Pro (13-inch, M1, 2020) OBS Studio version: 26. 5 days ago · Since encoding is platform- and codec-specific, only a few scenarios are supported at the moment. May 31, 2024 · ffmpeg -hwaccel videotoolbox -f lavfi -i color=c=black:s=256x256:d=1:r=30 -c:v hevc_videotoolbox -f null /dev/null I also tried to run a conversion using ffmpeg and the format you suggested and it was not successful. Successfully parsed a group of options. Definition at line 1866 of file videotoolboxenc. 264 video stream. 265 are supported from v4. Here's the stats for the video via MakeMKV rip and. Description A video encoded with hevc_videotoolbox in main10 profile is recognized as "main" instead of "main10". 265 alpha Hardware decoder available for codec: H. Jul 16, 2024 · This can cause issues on display/encoding paths that solely rely on CVBuffer metadata, like AVSampleBufferDisplayLayer or VideoToolbox CVPX encoding. 264 that are about half the size. 265 / HEVC (High Efficiency Video Coding) (encoders: libx265 hevc_videotoolbox ) Jun 12, 2020 · In a direct comparison the videotoolbox variant is 4 times faster than the x264 software encoder. Fix #28703 (closed) Jan 11, 2022 · Apple VideoToolbox (VT) Recording on Intel Macs In OBS Settings → Output, set the Output Mode to Advanced Switch to the Recording tab Set the Encoder to Apple VT H264 Hardware Encoder Set the bit rate to match your video settings. This was working perfectly prior to the OS update. Jun 20, 2024 · Codec Selection libx264 vs H264_videotoolbox: libx264 is a software-based encoder and is generally more thorough in encoding, producing higher quality at the same bitrate compared to H264_videotoolbox, which is a hardware-based encoder. Specify the expected video source frame rate. If the result is sections with good quality and sections with bad quality (because of the complexity of some scenes) you could try to use two-pass encoding (although it will be slower). I compared a software libx264 encoder (Mac) and NVIDIA Geforce (NVENC) on Windows 10 with the same bitrate or constant quality mode producing almost identical file size. The software decoder starts normally, but if it detects a stream which is decodable in hardware then it will attempt to delegate all significant processing to that hardware. Create a compression session Create a VTCompressionSession object and specify the required dimensions and codecType. Set by the caller. Background info: Apple provides hardware acceleration support for encoding h264 and h265 videos through VideoToolbox. It's especially Nov 6, 2018 · CoreMedia codec type that Videotoolbox will use to create the decompression session. L. 264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (encoders: libx264 libx264 libx264rgb h264_videotoolbox ) DEV. Incompatible pixel format 'yuv420p' for codec 'hevc_videotoolbox', auto-selecting format 'nv12' This is not the case anymore with the current FFmpeg versions. . In all cases the encoding time was the same at about 2 minutes, even though the resulting file size and video quality varied drastically. See full list on handbrake. h. 0, there are several h264 encoders. 265 Hardware decoder available for codec: H. Sep 26, 2017 · PJSIP version 2. Definition at line 76 of file videotoolbox. VideoToolbox Documentation 21 Posts Activity ⚠️ Jul 12, 2024 · Is there an existing issue for this? I have searched the existing issues Is your issue described in the documentation? I have read the documentation Is your issue present in the latest beta/pre-rel Even with VideoToolbox in Handbrake I go to about 50% CPU but GPU remains idle. There's never been a better time to develop for Apple platforms. You could try using the bitrate of the resulting video processed only with the CPU. Hi, I think that a visual quality of hardware video encoder (VideoToolBox H. Normal H. Definition at line 1907 of file videotoolboxenc. Oct 30, 2018 · The size of the hevc_videotoolbox-encoded video#1 is smaller than the original test file (h264) but larger than libx265-encoded video#2 (using default parameters). Here are some suggested bit rates: 1280x720 @ 30fps: 3000 Kb/s 1280x720 @ 60fps: 6000 Kb/s 1920x1080 @ 30fps May 30, 2024 · 1. I see many visual artefacts on a video encoded with VideoToolBox H. Optionally, specify sourceImageBufferAttributes to provide a description of the source pixel buffers. Referenced by get_sei_msg_bytes (), and write_sei (). 3. 265/HEVC, now that the codec has good support on both hardware and in Mac OS/iOS. 7 is just released with the main focus on supporting DTLS for SRTP keying, iOS and Mac H. Stick with libx264 for better quality, especially given your low-quality source material. h264_amf h264_nvenc h264_omx h264_qsv h264_v4l2m2m h264_vaapi h264_videotoolbox I do not know what's the difference between. 1. Optionally specify the codec profile and level and update the average target bit rate. 0. Jan 31, 2021 · Platform Operating system and version: macOS Big Sur version 11. Codec Selection libx264 vs H264_videotoolbox: libx264 is a software-based encoder and is generally more thorough in encoding, producing higher quality at the same bitrate compared to H264_videotoolbox, which is a hardware-based encoder. Sometimes, a global option may only affect a specific kind of codec * FFmpeg is free software; you can redistribute it and/or Copies the data inserting emulation prevention bytes as needed. Jun 16, 2024 · I played around with CQ values ranging from 18 to 72 for VideoToolbox. The VideoToolbox encoder works by compressing video data for various applications such as low-latency conferencing, live streaming, and offline transcoding. 228, H. Jan 8, 2017 · CoreMedia codec type that Videotoolbox will use to create the decompression session. * FFmpeg is free software; you can redistribute it and/or Copies the data inserting emulation prevention bytes as needed. In addition, each codec may support so-called private options, which are specific for a given codec. 236 Enable hardware accelerated encoding By default, hardware acceleration is "disabled". Opening an output file: xxxx [out#0/mp4 @ 0x7f8921804fc0] No explicit maps, mapping streams automatically [vost#0:0/hevc_videotoolbox @ 0x7f8910f04bc0] Created video stream from input stream 0:0 detected 8 Jul 23, 2023 · -codec:v prores_videotoolbox Apple Silicone Encoder, now in the 2020s you can encode compliant ProRes on M1 and newer ARM based macs with FFmpeg. Apr 16, 2024 · Hello, I am having some transcoding issues with certain files, and it seems to be related to hardware encoding with Apple VideoToolBox. 265 takes CPU to 80%. 8kbits/s speed=6. If you use . If you set the pixel format to YUV422P, the warning also pops up but the auto switching to NV12 is done correctly. 264 Hardware decoder not available for codec: VP9 But it's a bummer that you still need a special entitlement to Jan 8, 2017 · Files | Data Structures | Macros VideoToolbox Decoder libavcodec » Codecs » Hardware Accelerators bridge Jan 11, 2024 · videotoolbox HVEC – a hardware implementation of the H265 codec using the Apple M1-Pro CPU (in my case). Jun 5, 2018 · In ffmpeg 4. Initially, I was getting results with lots of artifacts, I built from HEAD, and am getting good quality results now: Nov 24, 2023 · To do this, I use the h264_videotoolbox codec (I don't want to use any codec other than h264_videotoolbox), but the encoding speed is very slow (below 1). Aug 26, 2024 · Applying option c:v (codec name) with argument hevc_videotoolbox. It is similar to VideoToolbox on Apple devices. hevc H. The FFmpeg wiki estimates that you should be able to produce video files of similar video quality as H. Definition at line 1900 of file videotoolboxenc. Aug 18, 2020 · This post suggests using a constant bitrate (-b:v) because "h264_videotoolbox doesn’t work well with CRF values". Oct 14, 2023 · Solution found: I guess I'd need to change the keywords I was searching. I think you will need a Mac from 2015 or later to support videotoolbox (and even then, it is likely not all models available at the time properly supported videotoolbox encoding). Nov 20, 2020 · I'm using ffmpeg 4. Video Toolbox | Apple Developer Documentation "VideoToolbox is a low-level framework that provides direct access to hardware encoders and decoders. /configure --list-encoders | grep "h264", you can see them. When using the h264_videotoolbox or hevc_videotoolbox codecs, the -b:v bitrates are ignored. It supports hardware encoding on most Macs from 2011 and later, and uses Apple's Media Engine on devices with Apple T2 chips or Apple Silicon. If the stream is not decodable in hardware (for example, it is an unsupported codec or profile Set the encoder settings dictionary. It falls back to default software encoder but it's full of graphical glitches/atrifacts. Expected behavior I expect the encoding speed to be the same as when I convert from mp4 to mp4 : frame=68 fps=0. The Android's MediaCodec framework is a part of Android's multimedia framework that provides access to low-level media encoder & decoder components. Apple's videotoolbox codecs seem to ignore bitrate parameters So I noticed this today, but can't find many references to anyone else reporting this. The low-latency rate control that the system enables during the VTCompressionSession object creation takes care of the other encoder configuration for low latency. I mainly made this because I was sick of writing the same FFmpeg commands over and over again; this just looks nicer H264 is a codec. 264 and H. Jul 22, 2011 · A complete, cross-platform solution to record, convert and stream audio and video. 0 on my M1 Macbook Pro. c. 0 q=-0. g. Similar results with h265 encoding: hevc_videotoolbox is here 3 times faster than the x265 software encoder. 2. 0 size=512kB bitrate=1143. My Mac har Registers a video decoder for the specified codec type, if one exists on the current system. And I want convert local gif to mp4 using ffmpeg, so which encoder works for me? Aug 20, 2021 · Greetings. On failure, the negative of the number of bytes needed to copy src is returned. Sep 17, 2024 · Export using Codec h264_videotoolbox fails every time after updating MacOS to version 15. Mar 4, 2023 · 在 MacBook Pro M2 Max 上使用 FFmpeg 2023-03-04 2 minute read Apple 芯片上进行硬件加速的框架 Video Toolbox VideoToolbox 是一个低级框架，可提供对硬件编码器和解码器的直接访问。它提供视频压缩和解压缩服务，以及存储在 CoreVideo 像素缓冲区中的光栅图像格式之间的转换。这些服务以会话对象（压缩、解压缩和 May 28, 2019 · This weekend I experimented a little with re-encoding video as H. 264 native VideoToolbox codec, as well as NAT64 support. Optionally specify the codec profile and level, the average target bit rate and the data rate limits or the target constant bit rate, the maximum interval between key frames, the number of look ahead frames Overview This sample code project demonstrates how to configure and use a VTCompressionSession object to encode video for offline transcoding. Definition at line 1851 of file videotoolboxenc. Hardware acceleration with MediaCodec is used for processing audio, video, and compressed data. Copies the data inserting emulation prevention bytes as needed. It provides services for video compression and decompression, and for conversion between raster image formats stored in CoreVideo pixel buffers. ()" It seems that FFmpeg If you have an M1, M2, or other Apple Silicon chip in your computer, you can use hardware acceleration to speed up FFmpeg video encoding. Currently, only macOS is supported (Acceleration using VideoToolbox) ProRes is supported from v4. 264 (1080p 60 fps) 3300K or CQ56. -codec:v prores_videotoolbox enables the hardware encoder -profile:v hq etc VideoToolbox Work directly with hardware-accelerated video encoding and decoding capabilities using VideoToolbox. I ran a brief test comparing VP9 software and hardware decoding to illustrate the significant difference. Overview VideoToolbox is a low-level framework that provides direct access to hardware encoders and decoders. It provides an easy-to-use command-line interface for encoding videos with various options, including codec selection, quality settings, and scaling. If you are doing lighting or compositing reviews the recommendation is to use Prores_ks with -profile:v 3. Returns The number of bytes copied on success. 62x Oct 28, 2024 · Use with the ffmpeg command-line tool Internal hwaccel decoders are enabled via the -hwaccel option (now supported in ffplay). Mar 15, 2024 · Describe the Bug Sunshine fails to use hardware encoders on macOS despite the fact that other applications (e. vt-enc is a bash script that simplifies the process of encoding videos with FFmpeg using Apple's VideoToolbox framework on macOS. 1 Description This document describes the codecs (decoders and encoders) provided by the libavcodec library. VideoToolbox has convenient functions for creating descriptions of AVC and HEVC streams (CMVideoFormatDescriptionCreateFromH264ParameterSets and CMVideoFormatDescriptionCreateFromHEVCParameterSets), but not for AV1. Applying option b:v (video bitrate (please use -b:v)) with argument 2000000. Hanbrake, videoproc) can. I have Jellyfin installed on an Intel-based Mac Mini using the v Hardware decoder available for codec: H. After a few weeks I figured it out and wanted to share an extensive Jan 8, 2017 · Files | Data Structures | Macros VideoToolbox Decoder libavcodec » Codecs » Hardware Accelerators bridge How do you control videotoolbox quality settings? I'm running ffmpeg on a MacBook Pro M1 Max, running macOS 14. ffmpeg has built-in support for VideoToolbox through the h264_videotoolbox codec. fr Apr 9, 2015 · I had a lot of trouble figuring out how to use Apple's Hardware accelerated video framework to decompress an H. Update - Solved The -tag:v hvc1 needed to be added so that Apple players can play the HEVC content. I've tried converting an h264 video to hevc using hevc_videotoolbox multiple different ways. 1 to convert videos from h264 to h265 and initially I was excited to discover that I can use my Mac's GPU to speed up the conversion with the flag hevc_videotoolbox. Jan 5, 2024 · If I set the commands to use their h264 alternatives for the codec (h264_videotoolbox & h264_omx) it produces working files but I was hoping to use hevc to minimize the file sizes. iMovie or Final Cut Pro crank the GPU all the way up. Intel QSV H265 – a hardware implementation of the H265 codec using Intel processors. 264) in M1 Macs is not great. x264 is an encoding library, a tool that makes H264 streams The h264_videotoolbox encoder will produce similar files to using libx264, but will exhibit different behavior, run at different speeds, use different options, and produce different quality results Discover how VideoToolbox supports low-delay H. I'm not sure if that's because no-one really uses the feature, or if I'm doing something wrong. However, this came at a cost: increased CPU load and the need for dedicated decoding hardware, especially on embedded devices like the iPhone.