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avcodec/mpegvideo: Defer init of enc slice ctxs in ff_mpv_common_init()

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This will allow to perform initializations between ff_mpv_common_init()
and ff_mpv_init_duplicate_contexts() that will be automatically
copied to the slice contexts.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-06-13 01:10:18 +02:00
parent 85692e5da1
commit 8f92885b1f
2 changed files with 11 additions and 6 deletions
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8
libavcodec/mpegvideo.c
View File

@ -431,9 +431,11 @@ av_cold int ff_mpv_common_init(MpegEncContext *s)
s->slice_context_count = nb_slices;
// if (s->width && s->height) {
ret = ff_mpv_init_duplicate_contexts(s);
if (ret < 0)
goto fail;
if (!s->encoding) {
ret = ff_mpv_init_duplicate_contexts(s);
if (ret < 0)
goto fail;
}
// }
return 0;

9
libavcodec/mpegvideo_enc.c
View File

@ -1023,9 +1023,9 @@ av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
m->lmin = m->lmax;
}
/* ff_mpv_common_init() will copy (memdup) the contents of the main slice
* to the slice contexts, so we initialize various fields of it
* before calling ff_mpv_common_init(). */
/* ff_mpv_init_duplicate_contexts() will copy (memdup) the contents of the
* main slice to the slice contexts, so we initialize various fields of it
* before calling ff_mpv_init_duplicate_contexts(). */
s->parent = m;
ff_mpv_idct_init(&s->c);
init_unquantize(s, avctx);
@ -1057,6 +1057,9 @@ av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
s->c.slice_ctx_size = sizeof(*s);
ret = ff_mpv_common_init(&s->c);
if (ret < 0)
return ret;
ret = ff_mpv_init_duplicate_contexts(&s->c);
if (ret < 0)
return ret;