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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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14fb720149
This element analyses video buffers to identify if they are progressive, interlaced or telecined and outputs buffers with appropriate flags for a downstream element (which will be the deinterlace element, after some forthcoming modifications) to be able to output progressive frames and adjust timestamps resulting in a progressive stream.
119 lines
1.6 KiB
Text
119 lines
1.6 KiB
Text
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.init gst_fieldanalysis_orc_init
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.function orc_same_parity_sad_planar_yuv
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.accumulator 4 a1 guint32
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.source 1 s1
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.source 1 s2
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# noise threshold
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.param 4 nt
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.temp 2 t1
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.temp 2 t2
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.temp 4 t3
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.temp 4 t4
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convubw t1, s1
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convubw t2, s2
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subw t1, t1, t2
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absw t1, t1
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convuwl t3, t1
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cmpgtsl t4, t3, nt
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andl t3, t3, t4
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accl a1, t3
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.function orc_same_parity_ssd_planar_yuv
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.accumulator 4 a1 guint32
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.source 1 s1
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.source 1 s2
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# noise threshold
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.param 4 nt
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.temp 2 t1
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.temp 2 t2
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.temp 4 t3
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.temp 4 t4
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convubw t1, s1
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convubw t2, s2
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subw t1, t1, t2
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mulswl t3, t1, t1
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cmpgtsl t4, t3, nt
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andl t3, t3, t4
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accl a1, t3
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.function orc_same_parity_3_tap_planar_yuv
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.accumulator 4 a1 guint32
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.source 1 s1
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.source 1 s2
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.source 1 s3
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.source 1 s4
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.source 1 s5
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.source 1 s6
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# noise threshold
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.param 4 nt
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.temp 2 t1
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.temp 2 t2
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.temp 2 t3
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.temp 2 t4
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.temp 2 t5
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.temp 2 t6
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.temp 4 t7
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.temp 4 t8
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convubw t1, s1
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convubw t2, s2
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convubw t3, s3
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convubw t4, s4
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convubw t5, s5
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convubw t6, s6
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shlw t2, t2, 2
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shlw t5, t5, 2
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addw t1, t1, t2
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addw t1, t1, t3
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addw t4, t4, t5
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addw t4, t4, t6
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subw t1, t1, t4
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absw t1, t1
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convuwl t7, t1
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cmpgtsl t8, t7, nt
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andl t7, t7, t8
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accl a1, t7
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.function orc_opposite_parity_5_tap_planar_yuv
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.accumulator 4 a1 guint32
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.source 1 s1
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.source 1 s2
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.source 1 s3
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.source 1 s4
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.source 1 s5
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# noise threshold
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.param 4 nt
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.temp 2 t1
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.temp 2 t2
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.temp 2 t3
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.temp 2 t4
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.temp 2 t5
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.temp 4 t6
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.temp 4 t7
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convubw t1, s1
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convubw t2, s2
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convubw t3, s3
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convubw t4, s4
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convubw t5, s5
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shlw t3, t3, 2
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mullw t2, t2, 3
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mullw t4, t4, 3
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subw t1, t1, t2
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addw t1, t1, t3
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subw t1, t1, t4
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addw t1, t1, t5
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absw t1, t1
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convuwl t6, t1
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cmpgtsl t7, t6, nt
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andl t6, t6, t7
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accl a1, t6
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