jeffqjiangNew
c486a7f6b4
* * rocDecode/Perf sample: Added decoded frame number and display delay options to video decode performance sample. Also changed default thread number from 4 to 1. * * rocDecode: Added max number of decoded frames option to decode sample script. This is useful to do partial decoding test on long streams. * * rocDecode: Updated README.md. * * rocDecode: Minor correction.
38 lines
1.2 KiB
Markdown
38 lines
1.2 KiB
Markdown
# Video decode performance sample
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This sample illustrates the FFMPEG demuxer to get the individual frames which are then decoded on AMD hardware using rocDecode library.
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This sample uses multiple threads to decode the same input video parallelly.
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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 ffmpeg 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_perf_sample && cd video_decode_perf_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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./videodecodeperf -i <input video file [required]>
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-t <number of threads [optional - default:1]>
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-f <Number of decoded frames - specify the number of pictures to be decoded [optional]>
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-disp_delay <display delay - specify the number of frames to be delayed for display [optional]>
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-d <Device ID (>= 0) [optional - default:0]>
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-z <force_zero_latency - Decoded frames will be flushed out for display immediately [optional]>
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``` |