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sws/utils.c: Do not uselessly call initFilter() when unscaling

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This commit is contained in:
Tomas Härdin 2023-01-31 16:33:21 +01:00
parent 5cf0bc4236
commit a678b0c252
1 changed files with 31 additions and 31 deletions
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62
libswscale/utils.c
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@ -1701,6 +1701,37 @@ static av_cold int sws_init_single_context(SwsContext *c, SwsFilter *srcFilter,
}
}
/* alpha blend special case, note this has been split via cascaded contexts if its scaled */
if (unscaled && !usesHFilter && !usesVFilter &&
c->alphablend != SWS_ALPHA_BLEND_NONE &&
isALPHA(srcFormat) &&
(c->srcRange == c->dstRange || isAnyRGB(dstFormat)) &&
alphaless_fmt(srcFormat) == dstFormat
) {
c->convert_unscaled = ff_sws_alphablendaway;
if (flags & SWS_PRINT_INFO)
av_log(c, AV_LOG_INFO,
"using alpha blendaway %s -> %s special converter\n",
av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
return 0;
}
/* unscaled special cases */
if (unscaled && !usesHFilter && !usesVFilter &&
(c->srcRange == c->dstRange || isAnyRGB(dstFormat) ||
isFloat(srcFormat) || isFloat(dstFormat))){
ff_get_unscaled_swscale(c);
if (c->convert_unscaled) {
if (flags & SWS_PRINT_INFO)
av_log(c, AV_LOG_INFO,
"using unscaled %s -> %s special converter\n",
av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
return 0;
}
}
#if HAVE_MMAP && HAVE_MPROTECT && defined(MAP_ANONYMOUS)
#define USE_MMAP 1
#else
@ -1905,37 +1936,6 @@ static av_cold int sws_init_single_context(SwsContext *c, SwsFilter *srcFilter,
c->chrXInc, c->chrYInc);
}
/* alpha blend special case, note this has been split via cascaded contexts if its scaled */
if (unscaled && !usesHFilter && !usesVFilter &&
c->alphablend != SWS_ALPHA_BLEND_NONE &&
isALPHA(srcFormat) &&
(c->srcRange == c->dstRange || isAnyRGB(dstFormat)) &&
alphaless_fmt(srcFormat) == dstFormat
) {
c->convert_unscaled = ff_sws_alphablendaway;
if (flags & SWS_PRINT_INFO)
av_log(c, AV_LOG_INFO,
"using alpha blendaway %s -> %s special converter\n",
av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
return 0;
}
/* unscaled special cases */
if (unscaled && !usesHFilter && !usesVFilter &&
(c->srcRange == c->dstRange || isAnyRGB(dstFormat) ||
isFloat(srcFormat) || isFloat(dstFormat))){
ff_get_unscaled_swscale(c);
if (c->convert_unscaled) {
if (flags & SWS_PRINT_INFO)
av_log(c, AV_LOG_INFO,
"using unscaled %s -> %s special converter\n",
av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat));
return 0;
}
}
ff_sws_init_scale(c);
return ff_init_filters(c);