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avcodec/h264pred: Remove dead > 8 pixels checks for 8bit codecs 

RV40, SVQ3 and VP7/VP8 are eight-bit only, so it makes no sense
to check for them in the codepath initializing > eight bit contexts.
Move the codec-specific code to a switch located after the eight-bit
init code where this is easily possible; and add checks to the macro
to enable the compiler to remove the remaining checks when initializing
bitdepths > 8 at compile-time.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-01-10 17:24:44 +01:00
parent 0a6e000d75
commit c32f6b7f8a
1 changed files with 37 additions and 64 deletions
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101
libavcodec/h264pred.c
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@ -445,56 +445,19 @@ av_cold void ff_h264_pred_init(H264PredContext *h, int codec_id,
#define FUNCD(a) a ## _c
#define H264_PRED(depth) \
if(codec_id != AV_CODEC_ID_RV40){\
if (codec_id == AV_CODEC_ID_VP7 || codec_id == AV_CODEC_ID_VP8) {\
h->pred4x4[VERT_PRED ]= FUNCD(pred4x4_vertical_vp8);\
h->pred4x4[HOR_PRED ]= FUNCD(pred4x4_horizontal_vp8);\
} else {\
h->pred4x4[VERT_PRED ]= FUNCC(pred4x4_vertical , depth);\
h->pred4x4[HOR_PRED ]= FUNCC(pred4x4_horizontal , depth);\
}\
h->pred4x4[DC_PRED ]= FUNCC(pred4x4_dc , depth);\
if(codec_id == AV_CODEC_ID_SVQ3)\
h->pred4x4[DIAG_DOWN_LEFT_PRED ]= FUNCD(pred4x4_down_left_svq3);\
else\
h->pred4x4[DIAG_DOWN_LEFT_PRED ]= FUNCC(pred4x4_down_left , depth);\
h->pred4x4[DIAG_DOWN_RIGHT_PRED]= FUNCC(pred4x4_down_right , depth);\
h->pred4x4[VERT_RIGHT_PRED ]= FUNCC(pred4x4_vertical_right , depth);\
h->pred4x4[HOR_DOWN_PRED ]= FUNCC(pred4x4_horizontal_down , depth);\
if (codec_id == AV_CODEC_ID_VP7 || codec_id == AV_CODEC_ID_VP8) {\
h->pred4x4[VERT_LEFT_PRED ]= FUNCD(pred4x4_vertical_left_vp8);\
} else\
h->pred4x4[VERT_LEFT_PRED ]= FUNCC(pred4x4_vertical_left , depth);\
h->pred4x4[HOR_UP_PRED ]= FUNCC(pred4x4_horizontal_up , depth);\
if (codec_id != AV_CODEC_ID_VP7 && codec_id != AV_CODEC_ID_VP8) {\
h->pred4x4[LEFT_DC_PRED ]= FUNCC(pred4x4_left_dc , depth);\
h->pred4x4[TOP_DC_PRED ]= FUNCC(pred4x4_top_dc , depth);\
} else {\
h->pred4x4[TM_VP8_PRED ]= FUNCD(pred4x4_tm_vp8);\
h->pred4x4[DC_127_PRED ]= FUNCD(pred4x4_127_dc);\
h->pred4x4[DC_129_PRED ]= FUNCD(pred4x4_129_dc);\
h->pred4x4[VERT_VP8_PRED ]= FUNCC(pred4x4_vertical , depth);\
h->pred4x4[HOR_VP8_PRED ]= FUNCC(pred4x4_horizontal , depth);\
}\
if (codec_id != AV_CODEC_ID_VP8)\
if (depth > 8 || codec_id != AV_CODEC_ID_VP8)\
h->pred4x4[DC_128_PRED ]= FUNCC(pred4x4_128_dc , depth);\
}else{\
h->pred4x4[VERT_PRED ]= FUNCC(pred4x4_vertical , depth);\
h->pred4x4[HOR_PRED ]= FUNCC(pred4x4_horizontal , depth);\
h->pred4x4[DC_PRED ]= FUNCC(pred4x4_dc , depth);\
h->pred4x4[DIAG_DOWN_LEFT_PRED ]= FUNCD(pred4x4_down_left_rv40);\
h->pred4x4[DIAG_DOWN_RIGHT_PRED]= FUNCC(pred4x4_down_right , depth);\
h->pred4x4[VERT_RIGHT_PRED ]= FUNCC(pred4x4_vertical_right , depth);\
h->pred4x4[HOR_DOWN_PRED ]= FUNCC(pred4x4_horizontal_down , depth);\
h->pred4x4[VERT_LEFT_PRED ]= FUNCD(pred4x4_vertical_left_rv40);\
h->pred4x4[HOR_UP_PRED ]= FUNCD(pred4x4_horizontal_up_rv40);\
h->pred4x4[LEFT_DC_PRED ]= FUNCC(pred4x4_left_dc , depth);\
h->pred4x4[TOP_DC_PRED ]= FUNCC(pred4x4_top_dc , depth);\
h->pred4x4[DC_128_PRED ]= FUNCC(pred4x4_128_dc , depth);\
h->pred4x4[DIAG_DOWN_LEFT_PRED_RV40_NODOWN]= FUNCD(pred4x4_down_left_rv40_nodown);\
h->pred4x4[HOR_UP_PRED_RV40_NODOWN]= FUNCD(pred4x4_horizontal_up_rv40_nodown);\
h->pred4x4[VERT_LEFT_PRED_RV40_NODOWN]= FUNCD(pred4x4_vertical_left_rv40_nodown);\
}\
\
h->pred8x8l[VERT_PRED ]= FUNCC(pred8x8l_vertical , depth);\
h->pred8x8l[HOR_PRED ]= FUNCC(pred8x8l_horizontal , depth);\
@ -516,16 +479,14 @@ av_cold void ff_h264_pred_init(H264PredContext *h, int codec_id,
h->pred8x8[VERT_PRED8x8 ]= FUNCC(pred8x16_vertical , depth);\
h->pred8x8[HOR_PRED8x8 ]= FUNCC(pred8x16_horizontal , depth);\
}\
if (codec_id != AV_CODEC_ID_VP7 && codec_id != AV_CODEC_ID_VP8) {\
if (chroma_format_idc <= 1) {\
h->pred8x8[PLANE_PRED8x8]= FUNCC(pred8x8_plane , depth);\
} else {\
h->pred8x8[PLANE_PRED8x8]= FUNCC(pred8x16_plane , depth);\
}\
} else\
h->pred8x8[PLANE_PRED8x8]= FUNCD(pred8x8_tm_vp8);\
if (codec_id != AV_CODEC_ID_RV40 && codec_id != AV_CODEC_ID_VP7 && \
codec_id != AV_CODEC_ID_VP8) {\
if (depth > 8 || (codec_id != AV_CODEC_ID_RV40 && \
codec_id != AV_CODEC_ID_VP7 && \
codec_id != AV_CODEC_ID_VP8)) { \
if (chroma_format_idc <= 1) {\
h->pred8x8[DC_PRED8x8 ]= FUNCC(pred8x8_dc , depth);\
h->pred8x8[LEFT_DC_PRED8x8]= FUNCC(pred8x8_left_dc , depth);\
@ -547,10 +508,6 @@ av_cold void ff_h264_pred_init(H264PredContext *h, int codec_id,
h->pred8x8[DC_PRED8x8 ]= FUNCD(pred8x8_dc_rv40);\
h->pred8x8[LEFT_DC_PRED8x8]= FUNCD(pred8x8_left_dc_rv40);\
h->pred8x8[TOP_DC_PRED8x8 ]= FUNCD(pred8x8_top_dc_rv40);\
if (codec_id == AV_CODEC_ID_VP7 || codec_id == AV_CODEC_ID_VP8) {\
h->pred8x8[DC_127_PRED8x8]= FUNCC(pred8x8_127_dc, 8);\
h->pred8x8[DC_129_PRED8x8]= FUNCC(pred8x8_129_dc, 8);\
}\
}\
if (chroma_format_idc <= 1) {\
h->pred8x8[DC_128_PRED8x8 ]= FUNCC(pred8x8_128_dc , depth);\
@ -561,23 +518,7 @@ av_cold void ff_h264_pred_init(H264PredContext *h, int codec_id,
h->pred16x16[DC_PRED8x8 ]= FUNCC(pred16x16_dc , depth);\
h->pred16x16[VERT_PRED8x8 ]= FUNCC(pred16x16_vertical , depth);\
h->pred16x16[HOR_PRED8x8 ]= FUNCC(pred16x16_horizontal , depth);\
switch(codec_id){\
case AV_CODEC_ID_SVQ3:\
h->pred16x16[PLANE_PRED8x8 ]= FUNCD(pred16x16_plane_svq3);\
break;\
case AV_CODEC_ID_RV40:\
h->pred16x16[PLANE_PRED8x8 ]= FUNCD(pred16x16_plane_rv40);\
break;\
case AV_CODEC_ID_VP7:\
case AV_CODEC_ID_VP8:\
h->pred16x16[PLANE_PRED8x8 ]= FUNCD(pred16x16_tm_vp8);\
h->pred16x16[DC_127_PRED8x8]= FUNCC(pred16x16_127_dc, 8);\
h->pred16x16[DC_129_PRED8x8]= FUNCC(pred16x16_129_dc, 8);\
break;\
default:\
h->pred16x16[PLANE_PRED8x8 ]= FUNCC(pred16x16_plane , depth);\
break;\
}\
h->pred16x16[PLANE_PRED8x8 ]= FUNCC(pred16x16_plane , depth);\
h->pred16x16[LEFT_DC_PRED8x8]= FUNCC(pred16x16_left_dc , depth);\
h->pred16x16[TOP_DC_PRED8x8 ]= FUNCC(pred16x16_top_dc , depth);\
h->pred16x16[DC_128_PRED8x8 ]= FUNCC(pred16x16_128_dc , depth);\
@ -615,6 +556,38 @@ av_cold void ff_h264_pred_init(H264PredContext *h, int codec_id,
default:
av_assert0(bit_depth<=8);
H264_PRED(8)
switch (codec_id) {
case AV_CODEC_ID_SVQ3:
h->pred4x4[DIAG_DOWN_LEFT_PRED] = FUNCD(pred4x4_down_left_svq3);
h->pred16x16[PLANE_PRED8x8 ] = FUNCD(pred16x16_plane_svq3);
break;
case AV_CODEC_ID_RV40:
h->pred4x4[DIAG_DOWN_LEFT_PRED] = FUNCD(pred4x4_down_left_rv40);
h->pred4x4[VERT_LEFT_PRED ] = FUNCD(pred4x4_vertical_left_rv40);
h->pred4x4[HOR_UP_PRED ] = FUNCD(pred4x4_horizontal_up_rv40);
h->pred4x4[DIAG_DOWN_LEFT_PRED_RV40_NODOWN] = FUNCD(pred4x4_down_left_rv40_nodown);
h->pred4x4[HOR_UP_PRED_RV40_NODOWN] = FUNCD(pred4x4_horizontal_up_rv40_nodown);
h->pred4x4[VERT_LEFT_PRED_RV40_NODOWN] = FUNCD(pred4x4_vertical_left_rv40_nodown);
h->pred16x16[PLANE_PRED8x8 ] = FUNCD(pred16x16_plane_rv40);
break;
case AV_CODEC_ID_VP7:
case AV_CODEC_ID_VP8:
h->pred4x4[VERT_PRED ] = FUNCD(pred4x4_vertical_vp8);
h->pred4x4[HOR_PRED ] = FUNCD(pred4x4_horizontal_vp8);
h->pred4x4[VERT_LEFT_PRED ] = FUNCD(pred4x4_vertical_left_vp8);
h->pred4x4[TM_VP8_PRED ] = FUNCD(pred4x4_tm_vp8);
h->pred4x4[VERT_VP8_PRED ] = FUNCC(pred4x4_vertical, 8);
h->pred4x4[DC_127_PRED ] = FUNCD(pred4x4_127_dc);
h->pred4x4[DC_129_PRED ] = FUNCD(pred4x4_129_dc);
h->pred4x4[HOR_VP8_PRED ] = FUNCC(pred4x4_horizontal, 8);
h->pred8x8[PLANE_PRED8x8 ] = FUNCD(pred8x8_tm_vp8);
h->pred8x8[DC_127_PRED8x8 ] = FUNCC(pred8x8_127_dc, 8);
h->pred8x8[DC_129_PRED8x8 ] = FUNCC(pred8x8_129_dc, 8);
h->pred16x16[PLANE_PRED8x8 ] = FUNCD(pred16x16_tm_vp8);
h->pred16x16[DC_127_PRED8x8] = FUNCC(pred16x16_127_dc, 8);
h->pred16x16[DC_129_PRED8x8] = FUNCC(pred16x16_129_dc, 8);
break;
}
break;
}