mirror of
https://github.com/mpv-player/mpv
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02756c3735
In theory, this could be easily done with custom I/O. In practice, all the halfassed garbage in FFmpeg shits itself and fucks up like there's no tomorrow. There are several problems: 1. FFmpeg pretends you can do custom I/O, but in reality there's a lot that custom I/O can do. hls.c even contains explicit checks to disable important things if custom I/O is used! In particular, you can't use the HTTP keepalive functionality (needed for somewhat decent HLS performance), because some cranky asshole in the cursed FFmpeg dev. community blocked it. 2. The implementation of nested I/O callbacks (io_open/io_close) is bogus and halfassed (like everything in FFmpeg, really). It will call io_open on some URLs without ever calling io_close. Instead, it'll call avio_close() on the context directly. From what I can tell, avio_close() is incompable to custom I/O anyway (overwhelmed by their own garbage, the fFmpeg devs created the io_close callback for this reason, because they couldn't fix their own fucking garbage). This commit adds some shitty workaround for this (technically triggers UB, but with that garbage heap of a library we depend on it's not like it matters). 3. Even then, you can't proxy I/O contexts (see 1.), but we can just keep track of the opened nested I/O contexts. The bytes_read is documented as not public, but reading it is literally the only way to get what we want. A more reasonable approach would probably be using curl. It could transparently handle the keep-alive thing, as well as propagating cookies etc. (which doesn't work with the FFmpeg approach if you use custom I/O). Of course even better if there were an independent HLS implementation anywhere. FFmpeg's HLS support is so embarrassing pathetic and just goes to show that they belong into the past (multimedia from 2000-2010) and should either modernize or fuck off. With FFmpeg's shit-crusted structures, todic communities, and retarded assholes denying progress, probably the latter. Did I already mention that FFmpeg is a shit fucked steaming pile of garbage shit? And all just to get some basic I/O stats, that any proper HLS consumer requires in order to implement adaptive streaming correctly (i.e. browser based players, and nothing FFmshit based). |
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| .. | ||
| codec_tags.c | ||
| codec_tags.h | ||
| cue.c | ||
| cue.h | ||
| demux_cue.c | ||
| demux_disc.c | ||
| demux_edl.c | ||
| demux_lavf.c | ||
| demux_libarchive.c | ||
| demux_mf.c | ||
| demux_mkv_timeline.c | ||
| demux_mkv.c | ||
| demux_null.c | ||
| demux_playlist.c | ||
| demux_rar.c | ||
| demux_raw.c | ||
| demux_timeline.c | ||
| demux_tv.c | ||
| demux.c | ||
| demux.h | ||
| ebml.c | ||
| ebml.h | ||
| matroska.h | ||
| packet.c | ||
| packet.h | ||
| stheader.h | ||
| timeline.c | ||
| timeline.h | ||