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Disable AltiVec IDCT for lowres decoding in lavc patch by (Sigbjørn Skjæret: cisc, broadpark no) 

Originally committed as revision 4413 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Sigbjørn Skjæret 2005-07-01 09:37:35 +00:00 committed by Michael Niedermayer
parent a3075830f2
commit 4af5b6cdb0
2 changed files with 6 additions and 0 deletions
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3
libavcodec/ppc/dsputil_ppc.c
View File

@ -305,6 +305,8 @@ void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx)
}
#endif //CONFIG_ENCODERS
if (avctx->lowres==0)
{
if ((avctx->idct_algo == FF_IDCT_AUTO) ||
(avctx->idct_algo == FF_IDCT_ALTIVEC))
{
@ -316,6 +318,7 @@ void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx)
c->idct_permutation_type = FF_NO_IDCT_PERM;
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
}
}
#ifdef POWERPC_PERFORMANCE_REPORT
{

3
libavcodec/ppc/mpegvideo_ppc.c
View File

@ -39,6 +39,8 @@ void MPV_common_init_ppc(MpegEncContext *s)
#ifdef HAVE_ALTIVEC
if (has_altivec())
{
if (s->avctx->lowres==0)
{
if ((s->avctx->idct_algo == FF_IDCT_AUTO) ||
(s->avctx->idct_algo == FF_IDCT_ALTIVEC))
{
@ -50,6 +52,7 @@ void MPV_common_init_ppc(MpegEncContext *s)
s->dsp.idct_permutation_type = FF_NO_IDCT_PERM;
#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
}
}
// Test to make sure that the dct required alignments are met.
if ((((long)(s->q_intra_matrix) & 0x0f) != 0) ||