core: add infrastructure to get screenshots from VOs

Add a VO command (VOCTRL_SCREENSHOT) which requests a screenshot
directly from the VO. If VO support is available, screenshots will be
taken instantly (no more 1 or 2 frames delay). Taking screenshots when
hardware decoding is in use will also work (vdpau). Additionally, the
screenshots will now use the same colorspace as the video display.
Change the central MPContext to be allocated with talloc so that it
can be used as a talloc parent context.

This commit does not yet implement the functionality for any VO (added
in subsequent commits).

The old screenshot video filter is not needed anymore if VO support is
present, and in that case will not be used even if it is present in
the filter chain. If VO support is not available then the filter is
used like before. Note that the filter still has some of the old
problems, such as delaying the screenshot by at least 1 frame.

1 files changed, 6 insertions, 1 deletions

diff --git a/mplayer.c b/mplayer.c
index 7030a50da0..70ad4d04e0 100644
--- a/mplayer.c
+++ b/mplayer.c
@@ -73,6 +73,7 @@
 
 #include "mp_osd.h"
 #include "libvo/video_out.h"
+#include "screenshot.h"
 
 #include "sub/font_load.h"
 #include "sub/sub.h"
@@ -791,6 +792,8 @@ void exit_player_with_rc(struct MPContext *mpctx, enum exit_reason how, int rc)
         m_config_free(mpctx->mconfig);
     mpctx->mconfig = NULL;
 
+    talloc_free(mpctx);
+
     exit(rc);
 }
 
@@ -3711,6 +3714,7 @@ static void run_playloop(struct MPContext *mpctx)
                 get_relative_time(mpctx);
             }
             print_status(mpctx, MP_NOPTS_VALUE, true);
+            screenshot_flip(mpctx);
         } else
             print_status(mpctx, MP_NOPTS_VALUE, false);
 
@@ -3943,7 +3947,8 @@ int main(int argc, char *argv[])
     int opt_exit = 0;
     int i;
 
-    struct MPContext *mpctx = &(struct MPContext){
+    struct MPContext *mpctx = talloc(NULL, MPContext);
+    *mpctx = (struct MPContext){
         .osd_function = OSD_PLAY,
         .begin_skip = MP_NOPTS_VALUE,
         .play_tree_step = 1,