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Code Issues Releases Activity

avcodec/mpegvideo_enc: Initialize dct_unquantize_int(ra|er) only once

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For encoders, mpeg_quant is an option of the MPEG-4 encoder
and therefore constant. This implies that one can set
the dct_unquantize_(intra|inter) function pointers during init.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-10-25 22:40:45 +02:00
parent 5d5b87f688
commit ed5a438f05
1 changed files with 11 additions and 11 deletions
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22
libavcodec/mpegvideo_enc.c
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@ -880,6 +880,17 @@ av_cold int ff_mpv_encode_init(AVCodecContext *avctx)
ff_dct_encode_init(s);
if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
} else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
} else {
s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
}
if ((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
s->chroma_qscale_table = ff_h263_chroma_qscale_table;
@ -1723,17 +1734,6 @@ static int frame_start(MpegEncContext *s)
}
}
if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
} else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
} else {
s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
}
if (s->dct_error_sum) {
av_assert2(s->noise_reduction && s->encoding);
update_noise_reduction(s);