mirror of
https://github.com/mpv-player/mpv
synced 2024-12-26 09:02:38 +00:00
33e999de82
Seems like I'm still not done with rar playback stuff... It turns out the reason for archive_read_open1() opening all volumes had nothing to do with libarchive's rar code, but was a consequence of how multi volume support is implemented in libarchive, and due to the fact that we enabled archive_read_support_format_zip_seekable() (through archive_read_support_format_zip()). The seekable zip format will seek to the end of the file and search for a zip "header" there. It could possibly be considered a libarchive bug that it does that even if it's fairly sure that it's a RAR file. We already do probing on a small buffer read from the start of the file (i.e. not giving libarchive a way to seek the stream before we think it's an archive), but that does not help, since libarchive needs to probe _again_. libarchive does not seem to provide a function to query the format (no archive_read_get_format()). Which seems quite strange, but at least I didn't find one. This commit works this around by doing some manual rar/zip probing. We could have gone only with rar probing. But detecting zip separately allows us to avoid that stream_libarchive seeks to the end during early probing. This is an additional bonus on top of "fixing" multi volume rar. The zip probing is from archive_read_format_zip_streamable_bid(). The rar signature is the common prefix of the rar and rar5 formats in libarchive (presumably the RAR fixed header parts without version). If the demuxer seeks to the end of the rar entry, this will still open all volumes; I'm not sure whether the old/removed rar code in mpv could handle this better. See: #7182 |
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| .. | ||
| cookies.c | ||
| cookies.h | ||
| dvb_tune.c | ||
| dvb_tune.h | ||
| dvbin.h | ||
| stream_avdevice.c | ||
| stream_bluray.c | ||
| stream_cb.c | ||
| stream_cdda.c | ||
| stream_concat.c | ||
| stream_dvb.c | ||
| stream_dvdnav.c | ||
| stream_edl.c | ||
| stream_file.c | ||
| stream_lavf.c | ||
| stream_libarchive.c | ||
| stream_libarchive.h | ||
| stream_memory.c | ||
| stream_mf.c | ||
| stream_null.c | ||
| stream_smb.c | ||
| stream.c | ||
| stream.h | ||