This is a toy/research project whose primary goal is to familiarize with some of the technologies involved in multi-lingual video streaming. Using this program may violate usage policy of ArteTV website and we do not recommend using it for other purpose then studying the code.
We support both _single program pages_ and _program collection pages_. Every page is shipped with some embedded JSON data (we do not keep samples as the structure seems to change regularly). From that we extract metadata for each programs. In particular, we extract a _site language_ and a _program ID_. These enables us to query the config API
This API returns a `ConfigPlayer` JSON object, a sample of which can be found [here](https://git.afpy.org/fcode/delarte/src/branch/stable/samples/api/). A list of available audio/subtitles combinations in `$.data.attributes.streams`. In our code such a combination is referred to as a _rendition_. Every such _rendition_ has a reference to a _program index_ file in `.streams[i].url`
As defined in [HTTP Live Streaming](https://www.rfc-editor.org/rfc/rfc8216) (sample files can be found [here](https://git.afpy.org/fcode/delarte/src/branch/stable/samples/hls/)). This file show the a list of video _variants_ URIs (one per video resolution). Each of them has
As defined in [HTTP Live Streaming](https://www.rfc-editor.org/rfc/rfc8216) (sample files can be found [here](https://git.afpy.org/fcode/delarte/src/branch/stable/samples/hls/). This file is basically a list of _segments_ (http ranges) the client is supposed to download in sequence.
As defined in [HTTP Live Streaming](https://www.rfc-editor.org/rfc/rfc8216) (sample files can be found [here](https://git.afpy.org/fcode/delarte/src/branch/stable/samples/hls/)). This file references the actual file containing the subtitles [VTT](https://developer.mozilla.org/en-US/docs/Web/API/WebVTT_API) data.
The multiplexing (_muxing_) the video file is handled by [ffmpeg](https://ffmpeg.org/). The script expects [ffmpeg](https://ffmpeg.org/) to be installed in the environnement and will call it as a subprocess.