Kiriti Gowda
9b64f18bc0
* CMakeLists - Updates and cleanup
* CTest - CXX Compiler Updates
* Package - Remove FFMPEG exe deps
* CMakeLists - Updates and cleanup
* CTest - CXX Compiler Updates
* Package - Remove FFMPEG exe deps
* FFMPEG - Updates
[ROCm/rocdecode commit: 913b6728f0]
41 라인
2.2 KiB
Markdown
41 라인
2.2 KiB
Markdown
# Video decode sample
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The VideoToSequence sample illustrates decoding a single packetized video stream using FFMPEG demuxer and splitting it into multiple video sequences. This uses seek functionality to seek to a random position and extract a batch of video sequences in YUV format with step and stride. 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 until a batch of sequences are extracted or EOS is reached.
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## Prerequisites:
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* Install [rocDecode](../../README.md#build-and-install-instructions)
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* [FFMPEG](https://ffmpeg.org/about.html)
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* On `Ubuntu`
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```shell
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sudo apt install libavcodec-dev libavformat-dev libavutil-dev
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```
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* On `RHEL`/`SLES` - install ffmpeg development packages manually or use [rocDecode-setup.py](../../rocDecode-setup.py) script
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## Build
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```shell
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mkdir video_decode_sample && cd video_decode_sample
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cmake ../
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make -j
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```
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## Run
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```shell
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./videotosequence -i <Input file/folder Path [required]>
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-o <Output folder to dump sequences - dumps output if requested [optional]>
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-d <GPU device ID - 0:device 0 / 1:device 1/ ... [optional - default:0]>
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-b <batch_size - specify the number of sequences to be decoded [optional - default:1]>
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-step <frame interval between each sequence [optional - default:1]>
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-stride <distance between consective frames in a sequence [optional - default:1]>
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-l <Number of frames in each sequence [optional - default:1]>
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-crop <crop rectangle for output (not used when using interopped decoded frame) [optional - default:1]>
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-seek_mode <option for seeking (0: no seek 1: seek to prev key frame) [optional - default: 0]>
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-crop <crop rectangle for output (not used when using interopped decoded frame) [optional - default: 0,0,0,0]>
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-m <output_surface_memory_type - decoded surface memory [optional - default: 0][0 : OUT_SURFACE_MEM_DEV_INTERNAL/ 1 : OUT_SURFACE_MEM_DEV_COPIED/ 2 : OUT_SURFACE_MEM_HOST_COPIED/3 : OUT_SURFACE_MEM_NOT_MAPPED]>
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``` |