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* * rocDecode/ES parser: Added elementary stream file parser for HEVC and AVC. * * rocDecode/ES parser: Added elementary stream file parser for AV1. Also cleaned up the bitstream ring buffer code. * * rocDecode/ES parser: Added the IVF container file parser for AV1. Also fixed a bug in fill ring buffer function. * * rocDecode/ES file parder: Added supported stream type detection. - The stream type detection checks the unique syntax patterns of the stream type and calculate the likeliheed score. Based on the score, the most likely type is determined. - The current supported stream types are: AVC/HEVC/AV1 elementary streams, IVF AV1 streams. * * rocDecode/ES file parser: Fixed an AVC decode regression due to a copy and paste error. * * rocDecode/ES file parser: Added bit depth parsing for codec support check; Added stronger AV1 detection for IVF AV1 stream type. * * rocDecode/ES file parser: Removed debugging logs. * * rocDecode/ES file parser: Added exmaple code to use the built-in file parser. * * rocDecode/Bitstream reader: Renamed the elementary parser feature to bitstream reader and re-organized the code. - Moved the bitstream reader code to rocDecode core lib from utility. - Added bitstream reader interface in parallel with rocDecode parser and decoder interfaces. * * rocDecode/Bitstream reader: Added sample to use bitstream reader, instead of FFMPEG demuxer, to get picture data. Also reverted the original sample app back to using FFMPEG demuxer only. * * rocDecode/Bitstream reader: Renamed the new sample app. * * rocDecode/Bitstream reader: FFMPEG dependency reduction. - Moved MD5 functions out of RocVideoDecoder utility class. This removed RocVideoDecoder's dependency on FFMPEG. - Added the new MD5 utility, which depends on FFMPEG lib. MD5 message digest generation is now performed in the MD5 utility. - Modified decode sampples that uses MD5 generation function. - Removed FFMPEG dependency from video decoder basic sample. * * rocDecode/Bitstream reader: Added option to use bitstream reader to video decode sample and conformance test script. Added the missing destroy bitstream reader call in video decode basic sample. * * rocDecode/Bitstream reader: Minor format change. No functional changes. * * rocDecode/Bitstream reader: Added handling of unsupported stream file type by the bitstream reader to decode sample apps. * * rocDecode/Bitstream reader: Fixed build errors of several samples. * * rocDecode/Bitstream reader: Added changes based on review comments. * * rocDecode/Bitstream reader: File name changes based on review comments. * * rocDecode/Bitstream reader: Moved MD5 code into single header file. Added changes based on review comments. * * rocDecode/Bitstream reader: Removed redundant path. * * rocDecode/Bitstream reader: Changed rocDecode version to 0.10.0. Added minor changes based on review comments. --------- Co-authored-by: Kiriti Gowda <kiritigowda@gmail.com>
Samples overview
rocDecode samples
Video decode
The video decode sample illustrates decoding a single packetized video stream using FFMPEG demuxer, video parser, and rocDecoder to get the individual decoded frames in YUV format. This sample can be configured with a device ID and optionally able to dump the output to a file. This sample uses the high-level RocVideoDecoder class which connects both the video parser and Rocdecoder. This process repeats in a loop until all frames have been decoded.
Video decode batch sample
This sample decodes multiple files using multiple threads, using the rocDecode library. The input is a directory of files and an input number of threads. The maximum number of threads is capped to 64. If the number of files is higher than the number of threads requested by the user, the files are distributed to the threads in a round robin fashion. If the number of files is lesser than the number of threads requested by the user, the number of threads created will be equal to the number of files.
Video decode memory
The video decode memory sample illustrates a way to pass the data chunk-by-chunk sequentially to the FFMPEG demuxer which is then decoded on AMD hardware using rocDecode library.
The sample provides a user class FileStreamProvider derived from the existing VideoDemuxer::StreamProvider to read a video file and fill the buffer owned by the demuxer. It then takes frames from this buffer for further parsing and decoding.
Video decode multi files
The video decodes multiple files sample illustrates the use of providing a list of files as input to showcase the reconfigure option in the rocDecode library. The input video files have to be of the same codec type to use the reconfigure option but can have different resolutions or resize parameters.
The reconfigure option can be disabled by the user if needed. The input file is parsed line by line and data is stored in a queue. The individual video files are demuxed and decoded one after the other in a loop. Output for each input file can also be stored if needed.
Video decode performance
This sample illustrates the FFMPEG demuxer to get the individual frames which are then decoded on AMD hardware using rocDecode library.
This sample uses multiple threads to decode the same input video parallelly.
Video decode RGB
This sample illustrates the FFMPEG demuxer to get the individual frames which are then decoded using rocDecode API and optionally color-converted using custom HIP kernels on AMD hardware. This sample converts decoded YUV output to one of the RGB or BGR formats(24bit, 32bit, 464bit) in a separate thread allowing it to run both VCN hardware and compute engine in parallel.
This sample uses HIP kernels to showcase the color conversion. Whenever a frame is ready after decoding, the ColorSpaceConversionThread is notified and can be used for post-processing.