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| author | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2022-09-08 15:09:26 +0200 |
|---|---|---|
| committer | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2022-09-11 21:08:04 +0200 |
| commit | df215e575850e41b19aeb1fd99e53372a6b3d537 (patch) | |
| tree | 23412de5569f437c076d68e15166102d0e0fc676 /libavcodec | |
| parent | 29c4c0886d143790fcbeddbe40a23dfc6f56345c (diff) | |
| download | ffmpeg-df215e575850e41b19aeb1fd99e53372a6b3d537.tar.gz | |
avcodec/dca_core: Only call emms_c() if needed
It is not needed on x64, because the AV_COPY* and AV_ZERO*
macros never use MMX on x64.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/dca_core.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/libavcodec/dca_core.c b/libavcodec/dca_core.c index 1655116eed..bbf36ea678 100644 --- a/libavcodec/dca_core.c +++ b/libavcodec/dca_core.c @@ -767,7 +767,9 @@ static void erase_adpcm_history(DCACoreDecoder *s) for (band = 0; band < DCA_SUBBANDS; band++) AV_ZERO128(s->subband_samples[ch][band] - DCA_ADPCM_COEFFS); +#ifdef FF_COPY_SWAP_ZERO_USES_MMX emms_c(); +#endif } static int alloc_sample_buffer(DCACoreDecoder *s) @@ -831,7 +833,9 @@ static int parse_frame_data(DCACoreDecoder *s, enum HeaderType header, int xch_b } } +#ifdef FF_COPY_SWAP_ZERO_USES_MMX emms_c(); +#endif return 0; } @@ -1276,7 +1280,9 @@ static void erase_x96_adpcm_history(DCACoreDecoder *s) for (band = 0; band < DCA_SUBBANDS_X96; band++) AV_ZERO128(s->x96_subband_samples[ch][band] - DCA_ADPCM_COEFFS); +#ifdef FF_COPY_SWAP_ZERO_USES_MMX emms_c(); +#endif } static int alloc_x96_sample_buffer(DCACoreDecoder *s) @@ -1506,7 +1512,9 @@ static int parse_x96_frame_data(DCACoreDecoder *s, int exss, int xch_base) } } +#ifdef FF_COPY_SWAP_ZERO_USES_MMX emms_c(); +#endif return 0; } |