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swscale/utils: Detect and skip unneeded sws_setColorspaceDetails() calls

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This avoids running various table inits unnecessarily

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-01-14 15:11:48 +01:00
parent 8f3a9a8c27
commit cc538e9dbd
1 changed files with 18 additions and 4 deletions
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22
libswscale/utils.c
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@ -832,8 +832,6 @@ int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4],
const AVPixFmtDescriptor *desc_dst;
const AVPixFmtDescriptor *desc_src;
int need_reinit = 0;
memmove(c->srcColorspaceTable, inv_table, sizeof(int) * 4);
memmove(c->dstColorspaceTable, table, sizeof(int) * 4);
handle_formats(c);
desc_dst = av_pix_fmt_desc_get(c->dstFormat);
@ -844,11 +842,24 @@ int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4],
if(!isYUV(c->srcFormat) && !isGray(c->srcFormat))
srcRange = 0;
if (c->srcRange != srcRange ||
c->dstRange != dstRange ||
c->brightness != brightness ||
c->contrast != contrast ||
c->saturation != saturation ||
memcmp(c->srcColorspaceTable, inv_table, sizeof(int) * 4) ||
memcmp(c->dstColorspaceTable, table, sizeof(int) * 4)
)
need_reinit = 1;
memmove(c->srcColorspaceTable, inv_table, sizeof(int) * 4);
memmove(c->dstColorspaceTable, table, sizeof(int) * 4);
c->brightness = brightness;
c->contrast = contrast;
c->saturation = saturation;
if (c->srcRange != srcRange || c->dstRange != dstRange)
need_reinit = 1;
c->srcRange = srcRange;
c->dstRange = dstRange;
@ -863,6 +874,9 @@ int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4],
if (c->cascaded_context[c->cascaded_mainindex])
return sws_setColorspaceDetails(c->cascaded_context[c->cascaded_mainindex],inv_table, srcRange,table, dstRange, brightness, contrast, saturation);
if (!need_reinit)
return 0;
if ((isYUV(c->dstFormat) || isGray(c->dstFormat)) && (isYUV(c->srcFormat) || isGray(c->srcFormat))) {
if (!c->cascaded_context[0] &&
memcmp(c->dstColorspaceTable, c->srcColorspaceTable, sizeof(int) * 4) &&