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* stream_concat, stream_memory: more stream_origin stuffwm42019-12-231-0/+17
| | | | | | Make concat streams use the "worst" origin of its parts, which may or may not be what makes sense. stream_memory has no natural way to do this, so just add a vague comment.
* stream, demux: redo origin policy thingwm42019-12-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mpv has a very weak and very annoying policy that determines whether a playlist should be used or not. For example, if you play a remote playlist, you usually don't want it to be able to read local filesystem entries. (Although for a media player the impact is small I guess.) It's weak and annoying as in that it does not prevent certain cases which could be interpreted as bad in some cases, such as allowing playlists on the local filesystem to reference remote URLs. It probably barely makes sense, but we just want to exclude some other "definitely not a good idea" things, all while playlists generally just work, so whatever. The policy is: - from the command line anything is played - local playlists can reference anything except "unsafe" streams ("unsafe" means special stream inputs like libavfilter graphs) - remote playlists can reference only remote URLs - things like "memory://" and archives are "transparent" to this This commit does... something. It replaces the weird stream flags with a slightly clearer "origin" value, which is now consequently passed down and used everywhere. It fixes some deviations from the described policy. I wanted to force archives to reference only content within them, but this would probably have been more complicated (or required different abstractions), and I'm too lazy to figure it out, so archives are now "transparent" (playlists within archives behave the same outside). There may be a lot of bugs in this. This is unfortunately a very noisy commit because: - every stream open call now needs to pass the origin - so does every demuxer open call (=> params param. gets mandatory) - most stream were changed to provide the "origin" value - the origin value needed to be passed along in a lot of places - I was too lazy to split the commit Fixes: #7274
* stream: remove unused read_chunk fieldwm42019-11-071-2/+0
| | | | | | | | | | | | | It was set, but its value was never used. The stream cache used to use it, but it was removed. It controlled how much data it tried to read from the underlying stream at once. The user can now control the buffer size with --stream-buffer-size, which achieves a similar effect, because the stream will in the common case read half of the buffer size at once. In fact, the new default size is 128KB, i.e. 64KB read size, which is as much as stream_file and stream_cb requested by default. stream_memory requested more, but it doesn't matter anyway. Only stream_smb set a larger size with 128KB.
* stream: replace STREAM_CTRL_GET_SIZE with a proper entrypointwm42019-11-071-7/+3
| | | | | This is overlay convoluted as a stream control, and important enough to warrant "first class" functionality.
* stream: change buffer argument types from char* to void*wm42019-11-071-1/+1
| | | | | | | This is slightly better, although not much, and ultimately doesn't matter. The public API in stream_cb.h also uses char*, but can't change that.
* stream: rearrange open functionswm42019-09-291-4/+12
| | | | | | | | | | | | | | | | Add yet another variant of the stream open function. This time, make it so that it's possible to add new open parameters in an extendable way, which should put an end to having to change this every other year. Effectively get rid of the overly special stream_create_instance() function and use the new one instead, which requires changes in stream_concat.c and stream_memory.c. The function is still in private in stream.c, but I preferred to make the mentioned users go through the new function for orthogonality. The error handling (mostly logging) was adjusted accordingly. This should not have any functional changes. (To preempt any excuses, I didn't actually test stream_concat and stream_memory.)
* stream: add a generic concat implementationwm42019-09-191-0/+160
This is not available to users. It can be used only though the stream_concat_open(). It's unused yet; to be used in the following commit.