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| author | Rémi Denis-Courmont <remi@remlab.net> | 2024-07-07 14:39:11 +0300 |
|---|---|---|
| committer | Rémi Denis-Courmont <remi@remlab.net> | 2024-07-14 11:39:35 +0300 |
| commit | a194131cb6adb6d5f2156e785f1bf859d9449def (patch) | |
| tree | ecaf07d9aa8a45ec5b51c656ee21b98ce080cc44 | |
| parent | 4e0e872881ff57f1953517067cf82d7ea925b432 (diff) | |
| download | ffmpeg-a194131cb6adb6d5f2156e785f1bf859d9449def.tar.gz | |
lavc/h264dsp: remove MMI 8-bit chroma DC dequant
The function is exactly identical to the C reference, only with the
constant propagated manually. It does not optimise anything.
| -rw-r--r-- | libavcodec/mips/h264dsp_init_mips.c | 5 | ||||
| -rw-r--r-- | libavcodec/mips/h264dsp_mips.h | 1 | ||||
| -rw-r--r-- | libavcodec/mips/h264dsp_mmi.c | 14 |
3 files changed, 1 insertions, 19 deletions
diff --git a/libavcodec/mips/h264dsp_init_mips.c b/libavcodec/mips/h264dsp_init_mips.c index e33df32c71..615b00d142 100644 --- a/libavcodec/mips/h264dsp_init_mips.c +++ b/libavcodec/mips/h264dsp_init_mips.c @@ -46,10 +46,7 @@ av_cold void ff_h264dsp_init_mips(H264DSPContext *c, const int bit_depth, c->h264_luma_dc_dequant_idct = ff_h264_luma_dc_dequant_idct_8_mmi; - if (chroma_format_idc <= 1) - c->h264_chroma_dc_dequant_idct = - ff_h264_chroma_dc_dequant_idct_8_mmi; - else + if (chroma_format_idc > 1) c->h264_chroma_dc_dequant_idct = ff_h264_chroma422_dc_dequant_idct_8_mmi; diff --git a/libavcodec/mips/h264dsp_mips.h b/libavcodec/mips/h264dsp_mips.h index 93a201c66a..7e1dcdd013 100644 --- a/libavcodec/mips/h264dsp_mips.h +++ b/libavcodec/mips/h264dsp_mips.h @@ -340,7 +340,6 @@ void ff_h264_idct_add8_422_8_mmi(uint8_t **dest, const int *block_offset, int16_t *block, int stride, const uint8_t nnzc[15*8]); void ff_h264_luma_dc_dequant_idct_8_mmi(int16_t *output, int16_t *input, int qmul); -void ff_h264_chroma_dc_dequant_idct_8_mmi(int16_t *block, int qmul); void ff_h264_chroma422_dc_dequant_idct_8_mmi(int16_t *block, int qmul); void ff_h264_weight_pixels16_8_mmi(uint8_t *block, ptrdiff_t stride, int height, diff --git a/libavcodec/mips/h264dsp_mmi.c b/libavcodec/mips/h264dsp_mmi.c index dff3d331b1..1ee8ca2f1c 100644 --- a/libavcodec/mips/h264dsp_mmi.c +++ b/libavcodec/mips/h264dsp_mmi.c @@ -1117,20 +1117,6 @@ void ff_h264_chroma422_dc_dequant_idct_8_mmi(int16_t *block, int qmul) block[112]= (t[7]*qmul + 128) >> 8; } -void ff_h264_chroma_dc_dequant_idct_8_mmi(int16_t *block, int qmul) -{ - int a,b,c,d; - - d = block[0] - block[16]; - a = block[0] + block[16]; - b = block[32] - block[48]; - c = block[32] + block[48]; - block[0] = ((a+c)*qmul) >> 7; - block[16]= ((d+b)*qmul) >> 7; - block[32]= ((a-c)*qmul) >> 7; - block[48]= ((d-b)*qmul) >> 7; -} - void ff_h264_weight_pixels16_8_mmi(uint8_t *block, ptrdiff_t stride, int height, int log2_denom, int weight, int offset) { |