README Updates (#282)

* 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

* update REAME

* update readme

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Co-authored-by: Aryan Salmanpour <aryan.salmanpour@amd.com>

samples/README.md

@@ -6,6 +6,12 @@ rocDecode samples
 
 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](videoDecodeBatch)
+
+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](videoDecodeMem)
 
 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.