avcodec/thread: Don't use ThreadFrame when unnecessary

The majority of frame-threaded decoders (mainly the intra-only)
need exactly one part of ThreadFrame: The AVFrame. They don't
need the owners nor the progress, yet they had to use it because
ff_thread_(get|release)_buffer() requires it.

This commit changes this and makes these functions work with ordinary
AVFrames; the decoders that need the extra fields for progress
use ff_thread_(get|release)_ext_buffer() which work exactly
as ff_thread_(get|release)_buffer() used to do.

This also avoids some unnecessary allocations of progress AVBuffers,
namely for H.264 and HEVC film grain frames: These frames are not
used for synchronization and therefore don't need a ThreadFrame.

Also move the ThreadFrame structure as well as ff_thread_ref_frame()
to threadframe.h, the header for frame-threaded decoders with
inter-frame dependencies.

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/libavcodec/av1dec.h b/libavcodec/av1dec.h
index 4e140588b9..82c7084e99 100644
--- a/libavcodec/av1dec.h
+++ b/libavcodec/av1dec.h
@@ -24,14 +24,14 @@
 #include <stdint.h>
 
 #include "libavutil/buffer.h"
+#include "libavutil/frame.h"
 #include "libavutil/pixfmt.h"
 #include "avcodec.h"
 #include "cbs.h"
 #include "cbs_av1.h"
-#include "thread.h"
 
 typedef struct AV1Frame {
-    ThreadFrame tf;
+    AVFrame *f;
 
     AVBufferRef *hwaccel_priv_buf;
     void *hwaccel_picture_private;