virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-02-04 06:08:26 +02:00
Code Issues Releases Activity

avcodec/x86/mpegvideoenc_template: Disable dead code

Browse Source 
Since bfb28b5ce89f3e950214b67ea95b45e3355c2caf the permutation
type FF_IDCT_PERM_SIMPLE is ARCH_X86_32-only. So use this
knowledge to disable code for it when not on ARCH_X86_32.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2023-09-11 23:36:08 +02:00
parent fa77cb258b
commit 27562bf022
2 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/x86/idctdsp_init.c
View File

@ -45,10 +45,12 @@ av_cold int ff_init_scantable_permutation_x86(uint8_t *idct_permutation,
int i;
switch (perm_type) {
#if ARCH_X86_32
case FF_IDCT_PERM_SIMPLE:
for (i = 0; i < 64; i++)
idct_permutation[i] = simple_mmx_permutation[i];
return 1;
#endif
case FF_IDCT_PERM_SSE2:
for (i = 0; i < 64; i++)
idct_permutation[i] = (i & 0x38) | idct_sse2_row_perm[i & 7];

3
libavcodec/x86/mpegvideoenc_template.c
View File

@ -225,7 +225,8 @@ static int RENAME(dct_quantize)(MpegEncContext *s,
if(s->mb_intra) block[0]= level;
else block[0]= temp_block[0];
if (s->idsp.perm_type == FF_IDCT_PERM_SIMPLE) {
av_assert2(ARCH_X86_32 || s->idsp.perm_type != FF_IDCT_PERM_SIMPLE);
if (ARCH_X86_32 && s->idsp.perm_type == FF_IDCT_PERM_SIMPLE) {
if(last_non_zero_p1 <= 1) goto end;
block[0x08] = temp_block[0x01]; block[0x10] = temp_block[0x08];
block[0x20] = temp_block[0x10];