If the user build Shaka-packager manually, the default name will be “packager”.
Adding it to the list will ensure that Devine detects the app in this situation.
The decrypt() call just before it would have included the map data for us, as it was needed to decrypt. Therefore, it would not need to be added again when merge_discontinuity() is called. In some cases re-adding the map data can cause playback or final merge failure.
`stopped_downloads` is capped to just 1000 objects even though I asked for 999999 downloads, so if aria2c is downloading more than 1000 URLs the count of stopped downloads will never match the count of download URLs and never stop.
How the m3u8 parser handles/groups #EXT-X to segment objects means the #EXT-X-DISCONTINUITY (`discontinuity` property) is tied to whatever segment is below it's line. Therefore, there's never a scenario where we need to merge+decrypt and the first every segment of the for loop, as there's no segments before it.
This can happen from just slightly off-spec playlists (can't blame it) but also from the OnSegmentFilter filtering out all segments before the first EXT-X-DISCONTINUITY. Common to happen when filtering out bumpers/intros.
For some reason aria2c has like 700 internal "download" structs per actual URL it was downloading, probably something to do with multiple connections/split, don't know don't care, as this way works just fine.
- Downloads are now multithreaded directly in the downloader.
- Now reuses connections instead of having to close and reopen connections for every single download.
- Progress updates are now yielded back to the caller instead of drilling down a progress callable.
- Instead of parsing download progress information in a very hacky way from the stdout stream, use aria2's RPC interface.
- Added a new utility get_free_port which is needed to choose aria2's RPC port as I do not want to use the default port in case the user is already using this port for another tool or reason. Also, to try mitigate port scanning attacks that target aria2 RPC ports.
- The config entry `aria2c.max_concurrent_downloads` is now actually used by aria2c when downloading.
- The `--max-concurrent-downloads` option and config value now defaults to `min(32,(cpu_count+4))` (usually around 16 for above average systems) instead of 5.
- Automated pproxy proxy rerouter is made via subprocess instead of trying to re-do what the pproxy entry point does for us, less code, less trouble, and was ultimately easier to implement.
- It now downloads all segment files multi-threaded first before any decryption or merging operations (excluding init data, which will be downloaded in sequence/order after all the segments are downloaded)
- Once all segments are downloaded it then starts to go through and do any merging/decryption/init data stuff/e.t.c afterwards.
- Segments are no longer decrypted one by one. If segments use the same EXT-X-KEY data, then they will be merged together and then decrypted. This should see a noticeable speed increase for Widevine DRM.
- Downloads are now multithreaded directly in the downloader.
- Requests and Curl-Impersonate use one singular Session for all downloads, keeping connections alive and cached so it doesn't have to close and reopen connections for every single download.
- Progress updates are now yielded back to the caller instead of drilling down a progress callable.
HLS playlists where each segment is in an mp4 container seems to corrupt when the EXT-X-MAP is changed out, unless you first merge segments by discontinuity and then merge the merges via FFmpeg (which demuxes all the merged segment continuities and then concatanates them together, probably giving it new init data too).
Previously, all entities were decoded in Subtitle files because of a problem with SubtitleEdit and it's /ReverseRtlStartEnd option not being entity-aware.
It actually ends up reversing the `;` of `‏`, instead of the actual value of `‏`. Therefore, I decoded all entities before SubtitleEdit could have processed the Subtitle, but this has caused problems with more advanced formats like TTML and WebVTT as `<` would decode to `<` causing syntax errors, among other problematic characters.
According to the TTML and WebVTT spec, html entity encoding is allowed, and that makes sense or you wouldn't be able to use `<` etc. Any failure for players to show the decoded character would be a player problem and be out of scope with Devine.
This is because SubtitleEdit keeps color-related information when converting to SRT from WebVTT, TTML, and such formats. Why? Not 100% sure. Maybe some players support colors, but generally if you are using SubRip, it's because you either only want basic text subs, or your player doesn't support these "fancy" ooh-la-la colors.
This is a better solution to just stripped out the information. As the option name suggests, it isn't just removing the color information but rather using it to detect different speakers, then appropriately "dialogify" the captions when needed. I.e., start each speaker's sentence with `- `, and separate them with a new line.
The dash-style dialog formatting is quite vital to know if a caption is all spoken by one speaker versus multiple. Not particularly necessary for non-SDH captioning, but would be wanted for SDH subtitles.