Defining captions (SMPTE-TT) with HLS VOD
Hello all:
This is slightly OT, but I'm looking for some guidance.
I have several dozen videos prepped as HLS VOD files. They do not have embedded captioning. As I have the SRT files (which I can convert to SMPTE-TT, etc.), my first thought is to make the sidecar files.
Reading through http://sdkdocs.roku.com/display/sdkdoc/ ... on+Support , it appears that the older SMPTE-TT format is my only alternative as a sidecar file, unless I want to re-transcode the files with the captioning files embedded into the stream.
The kernel of my channel is based off of the videoplayer example. My notion is to create an XML tag in my server hosted XML for the URL of the SMPTE-TT file, and then build an array for that in my showfeed.brs. Is that it?
Or, is it possible to define a sidecar SMPTE-TT file in the M3U8 HLS playlist...or is this just for embedded captions in the stream?
If I'm approaching this the wrong way - please let me know. It's not out of the realm of possibility to re-transcode the VOD files with the CC embedded, although that does limit future flexibility, and transcoders that can create HLS VOD with 3rd party caption files are a bit more rare.
Thanks!
This is slightly OT, but I'm looking for some guidance.
I have several dozen videos prepped as HLS VOD files. They do not have embedded captioning. As I have the SRT files (which I can convert to SMPTE-TT, etc.), my first thought is to make the sidecar files.
Reading through http://sdkdocs.roku.com/display/sdkdoc/ ... on+Support , it appears that the older SMPTE-TT format is my only alternative as a sidecar file, unless I want to re-transcode the files with the captioning files embedded into the stream.
The kernel of my channel is based off of the videoplayer example. My notion is to create an XML tag in my server hosted XML for the URL of the SMPTE-TT file, and then build an array for that in my showfeed.brs. Is that it?
Or, is it possible to define a sidecar SMPTE-TT file in the M3U8 HLS playlist...or is this just for embedded captions in the stream?
If I'm approaching this the wrong way - please let me know. It's not out of the realm of possibility to re-transcode the VOD files with the CC embedded, although that does limit future flexibility, and transcoders that can create HLS VOD with 3rd party caption files are a bit more rare.
Thanks!
