Remove now unused step variable.

Speed goes from 363 fps to 428 fps for 640x480 video.

When encoding to V210, make sure the AFD side data makes it through
in the resulting AVPacket.  This is needed so the decklink output
module can put out AFD when in 10-bit mode.

Signed-off-by: Devin Heitmueller <dheitmueller@ltnglobal.com>
Signed-off-by: Marton Balint <cus@passwd.hu>

Create a new AVPacket side data type for Active Format Description,
which mirrors the side data type found in AVFrame.  The primary
use case for this is ensuring AFD gets preserved in the V210
encoder, so that the decklink libavdevice can output AFD.

Signed-off-by: Devin Heitmueller <dheitmueller@ltnglobal.com>
Signed-off-by: Marton Balint <cus@passwd.hu>

When encoding to V210, make sure the CC side data makes it through
in the resulting AVPacket.  This is needed so the decklink output
module can put out captions when in 10-bit mode.

Signed-off-by: Devin Heitmueller <dheitmueller@ltnglobal.com>
Signed-off-by: Marton Balint <cus@passwd.hu>

Simplify macro TRANSPOSE_4H in mmiutils.h and add TRANSPOSE_8B as a common macro.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Optimize vp8 loop filter with mmi, four functions optimized:
1. ff_vp8_h_loop_filter8uv_mmi.
2. ff_vp8_v_loop_filter8uv_mmi.
3. ff_vp8_h_loop_filter16_mmi.
4. ff_vp8_v_loop_filter16_mmi.

Vp8 decoding speed improved about 50%(from 73fps to 110fps, Tested on loongson 3A3000).

Signed-off-by: Shiyou Yin <yinshiyou-hf@loongson.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Possibly useful in the error case.

Signed-off-by: Moritz Barsnick <barsnick@gmx.net>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

These conditions are checked again in is_extra(). This patch makes no
functional changes.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Constraint "g" means compiler can store variable in memory or register.
When we use constraint "g" for a variable and this variable was operated by
instruction which only support register operands may lead "invalid operands" error.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes #7263.

Simplify the usage of intermediate variable addr and remove unused variable all64
in following functions:
1. ff_put_pixels_clamped_mmi
2. ff_put_signed_pixels_clamped_mmi
3. ff_add_pixels_clamped_mmi

This optimization speed up mpeg4 decode about 2% on loongson platform(tested with 3A3000).

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Simplify the usage of intermediate variable addr in following functions:
1. ff_put_pixels4_8_mmi
2. ff_put_pixels8_8_mmi
3. ff_put_pixels16_8_mmi
4. ff_avg_pixels16_8_mmi.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Failed case: mss2-wmv
In following functions, pmullh was used to multiply two 16-bit data, this will cause data overflow.
1. ff_vc1_inv_trans_8x8_dc_mmi
2. ff_vc1_inv_trans_8x8_mmi
3. ff_vc1_inv_trans_8x4_mmi
4. ff_vc1_inv_trans_4x8_mmi
5. ff_vc1_inv_trans_4x4_mmi

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>