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stream_cb: add cancel_fn callback

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This allows stream_cb backends to implement blocking
behavior inside read_fn, and still get notified when the user
wants to cancel and stop playback.

Signed-off-by: Aman Gupta <aman@tmm1.net>
This commit is contained in:
Aman Gupta
2019-09-26 16:11:48 -07:00
parent 4fdd0940ed
commit c7d0a8f58e
4 changed files with 27 additions and 1 deletions
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17
libmpv/stream_cb.h
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@@ -147,6 +147,22 @@ typedef int64_t (*mpv_stream_cb_size_fn)(void *cookie);
*/
typedef void (*mpv_stream_cb_close_fn)(void *cookie);
/**
* Cancel callback used to implement a custom stream.
*
* This callback is used to interrupt any current or future read and seek
* operations. It will be called from a separate thread than the demux
* thread, and should not block.
*
* This callback can be NULL.
*
* Available since API 1.106.
*
* @param cookie opaque cookie identifying the stream,
* returned from mpv_stream_cb_open_fn
*/
typedef void (*mpv_stream_cb_cancel_fn)(void *cookie);
/**
* See mpv_stream_cb_open_ro_fn callback.
*/
@@ -170,6 +186,7 @@ typedef struct mpv_stream_cb_info {
mpv_stream_cb_seek_fn seek_fn;
mpv_stream_cb_size_fn size_fn;
mpv_stream_cb_close_fn close_fn;
mpv_stream_cb_cancel_fn cancel_fn; /* since API 1.106 */
} mpv_stream_cb_info;
/**