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avcodec/h261dec: Initialize IDCT context during init 

Before 998c9f15d1, initializing an
MpegEncContext's IDCT parts occured in ff_mpv_common_init() and this
has been called in h261_decode_frame(), not h261_decode_init().

Yet said commit factored this out of ff_mpv_common_init() and therefore
there is no reason any more not to set this during init as this commit
does.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2021-04-05 02:42:18 +02:00
parent 9abda1365c
commit 5106fe85f7
1 changed files with 1 additions and 4 deletions
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5
libavcodec/h261dec.c
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@ -79,6 +79,7 @@ static av_cold int h261_decode_init(AVCodecContext *avctx)
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
h->gob_start_code_skipped = 0;
ff_mpv_idct_init(s);
ff_thread_once(&init_static_once, h261_decode_init_static);
@ -595,10 +596,6 @@ static int h261_decode_frame(AVCodecContext *avctx, void *data,
retry:
init_get_bits(&s->gb, buf, buf_size * 8);
if (!s->context_initialized)
// we need the IDCT permutation for reading a custom matrix
ff_mpv_idct_init(s);
ret = h261_decode_picture_header(h);
/* skip if the header was thrashed */