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avcodec/thread: Don't use ThreadFrame when unnecessary

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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>
This commit is contained in:
Andreas Rheinhardt 2022-02-06 14:49:23 +01:00
parent f025b8e110
commit 02220b88fc
59 changed files with 252 additions and 283 deletions
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3
libavcodec/v210dec.c
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@ -142,7 +142,6 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
V210DecContext *s = avctx->priv_data;
ThreadData td;
int ret, stride, aligned_input;
ThreadFrame frame = { .f = data };
AVFrame *pic = data;
const uint8_t *psrc = avpkt->data;
@ -177,7 +176,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
ff_v210dec_init(s);
}
if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
if ((ret = ff_thread_get_buffer(avctx, pic, 0)) < 0)
return ret;
pic->pict_type = AV_PICTURE_TYPE_I;