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Code Issues Releases Activity

Alpha: proper IDCT selection

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Only select the Alpha IDCT if auto or explicitly requested.  Also
disable it in lowres mode.

Originally committed as revision 16666 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Måns Rullgård 2009-01-18 05:52:12 +00:00
parent c2fbf89398
commit 74c4746344
3 changed files with 6 additions and 0 deletions
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4
libavcodec/alpha/dsputil_alpha.c
View File

@ -356,7 +356,11 @@ void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx)
put_pixels_clamped_axp_p = c->put_pixels_clamped;
add_pixels_clamped_axp_p = c->add_pixels_clamped;
if (!avctx->lowres &&
(avctx->idct_algo == FF_IDCT_AUTO ||
avctx->idct_algo == FF_IDCT_SIMPLEALPHA)) {
c->idct_put = simple_idct_put_axp;
c->idct_add = simple_idct_add_axp;
c->idct = simple_idct_axp;
}
}

1
libavcodec/avcodec.h
View File

@ -1398,6 +1398,7 @@ typedef struct AVCodecContext {
#define FF_IDCT_FAAN 20
#define FF_IDCT_EA 21
#define FF_IDCT_SIMPLENEON 22
#define FF_IDCT_SIMPLEALPHA 23
/**
* slice count

1
libavcodec/options.c
View File

@ -210,6 +210,7 @@ static const AVOption options[]={
{"simplearmv5te", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV5TE, INT_MIN, INT_MAX, V|E|D, "idct"},
{"simplearmv6", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEARMV6, INT_MIN, INT_MAX, V|E|D, "idct"},
{"simpleneon", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLENEON, INT_MIN, INT_MAX, V|E|D, "idct"},
{"simplealpha", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_SIMPLEALPHA, INT_MIN, INT_MAX, V|E|D, "idct"},
{"h264", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_H264, INT_MIN, INT_MAX, V|E|D, "idct"},
{"vp3", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_VP3, INT_MIN, INT_MAX, V|E|D, "idct"},
{"ipp", NULL, 0, FF_OPT_TYPE_CONST, FF_IDCT_IPP, INT_MIN, INT_MAX, V|E|D, "idct"},