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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/exr.c
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@@ -2027,7 +2027,6 @@ static int decode_frame(AVCodecContext *avctx, void *data,
{
EXRContext *s = avctx->priv_data;
GetByteContext *gb = &s->gb;
ThreadFrame frame = { .f = data };
AVFrame *picture = data;
uint8_t *ptr;
@@ -2149,7 +2148,7 @@ static int decode_frame(AVCodecContext *avctx, void *data,
s->scan_lines_per_block;
}
if ((ret = ff_thread_get_buffer(avctx, &frame, 0)) < 0)
if ((ret = ff_thread_get_buffer(avctx, picture, 0)) < 0)
return ret;
if (bytestream2_get_bytes_left(gb)/8 < nb_blocks)