Samples - Multi Threaded Multi FIles (#255)

* adding new sample for decoding mulitple files on multiple threads * threads work ; no decoding yet * working version * code clean up * review comments * removing spaces * review comments * fps cal + name changes for files * code clean up * update readme * update readme * remove spaces * change to lambda functions * changes for using reconfig * adding dumping of yuv frames + review comments * review comments * remove extra lines/spaces * adding struct for decoder info * make separate decoders for 8 & 10bit * code clean up * addign reset for Saving frames * review comments * fixes dump issue for new file * cmake update for threads * support for avc * name change for sample * cmake soource name change * readme update * fixing typo in readme --------- Co-authored-by: Aryan Salmanpour <aryan.salmanpour@amd.com> [ROCm/rocdecode commit: ce3ebadaab]
2024-03-07 17:29:14 -08:00
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+# 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.
+
+## Prerequisites:
+
+* Install [rocDecode](../../README.md#build-and-install-instructions)
+
+* [FFMPEG](https://ffmpeg.org/about.html)
+
+    * On `Ubuntu`
+
+  ```shell
+  sudo apt install ffmpeg libavcodec-dev libavformat-dev libavutil-dev
+  ```
+  
+    * On `RHEL`/`SLES` - install ffmpeg development packages manually or use [rocDecode-setup.py](../../rocDecode-setup.py) script
+
+## Build
+
+```shell
+mkdir video_decode_batch && cd video_decode_batch
+cmake ../
+make -j
+```
+
+## Run
+
+```shell
+./videodecodebatch -i <directory containing input video files [required]> 
+                                   -t <number of threads [optional - default:4]>
+                                   -d <Device ID (>= 0) [optional - default:0]>
+```