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avcodec/mpegvideo: Factor common freeing code out 

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-12-25 14:57:38 +01:00 committed by Andreas Rheinhardt
parent ff0706cde8
commit 9bab7de175
1 changed files with 15 additions and 21 deletions
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36
libavcodec/mpegvideo.c
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@ -457,6 +457,15 @@ static void free_duplicate_context(MpegEncContext *s)
s->block = NULL;
}
static void free_duplicate_contexts(MpegEncContext *s)
{
for (int i = 1; i < s->slice_context_count; i++) {
free_duplicate_context(s->thread_context[i]);
av_freep(&s->thread_context[i]);
}
free_duplicate_context(s);
}
static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
{
#define COPY(a) bak->a = src->a
@ -988,7 +997,8 @@ av_cold int ff_mpv_common_init(MpegEncContext *s)
}
/**
* Frees and resets MpegEncContext fields depending on the resolution.
* Frees and resets MpegEncContext fields depending on the resolution
* as well as the slice thread contexts.
* Is used during resolution changes to avoid a full reinitialization of the
* codec.
*/
@ -996,6 +1006,8 @@ static void free_context_frame(MpegEncContext *s)
{
int i, j, k;
free_duplicate_contexts(s);
av_freep(&s->mb_type);
av_freep(&s->p_mv_table_base);
av_freep(&s->b_forw_mv_table_base);
@ -1048,16 +1060,6 @@ int ff_mpv_common_frame_size_change(MpegEncContext *s)
if (!s->context_initialized)
return AVERROR(EINVAL);
if (s->slice_context_count > 1) {
for (i = 0; i < s->slice_context_count; i++) {
free_duplicate_context(s->thread_context[i]);
}
for (i = 1; i < s->slice_context_count; i++) {
av_freep(&s->thread_context[i]);
}
} else
free_duplicate_context(s);
free_context_frame(s);
if (s->picture)
@ -1112,15 +1114,9 @@ void ff_mpv_common_end(MpegEncContext *s)
if (!s)
return;
if (s->slice_context_count > 1) {
for (i = 0; i < s->slice_context_count; i++) {
free_duplicate_context(s->thread_context[i]);
}
for (i = 1; i < s->slice_context_count; i++) {
av_freep(&s->thread_context[i]);
}
free_context_frame(s);
if (s->slice_context_count > 1)
s->slice_context_count = 1;
} else free_duplicate_context(s);
av_freep(&s->parse_context.buffer);
s->parse_context.buffer_size = 0;
@ -1152,8 +1148,6 @@ void ff_mpv_common_end(MpegEncContext *s)
ff_mpeg_unref_picture(s->avctx, &s->new_picture);
av_frame_free(&s->new_picture.f);
free_context_frame(s);
s->context_initialized = 0;
s->last_picture_ptr =
s->next_picture_ptr =