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codecparsers: h265: Add APIs for up-right-diagonal/raster scan conversion
As per 7-42 and 7-43 the ScalingFactor's scanIdx is 0, which is "up-right-diagonal" scan. Add APIs for converting up-right-diagonal to raster and vise versa. https://bugzilla.gnome.org/show_bug.cgi?id=754024
This commit is contained in:
lyb
Sebastian Dröge
parent
26e350f0bf
commit
497f372668
2 changed files with 141 additions and 0 deletions
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@ -149,6 +149,24 @@ static const guint8 zigzag_8x8[64] = {
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53, 60, 61, 54, 47, 55, 62, 63
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};
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static const guint8 uprightdiagonal_4x4[16] = {
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0, 4, 1, 8,
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5, 2, 12, 9,
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6, 3, 13, 10,
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7, 14, 11, 15
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};
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static const guint8 uprightdiagonal_8x8[64] = {
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0, 8, 1, 16, 9, 2, 24, 17,
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10, 3, 32, 25, 18, 11, 4, 40,
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33, 26, 19, 12, 5, 48, 41, 34,
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27, 20, 13, 6, 56, 49, 42, 35,
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28, 21, 14, 7, 57, 50, 43, 36,
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29, 22, 15, 58, 51, 44, 37, 30,
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23, 59, 52, 45, 38, 31, 60, 53,
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46, 39, 61, 54, 47, 62, 55, 63
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};
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typedef struct
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{
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guint par_n, par_d;
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@ -2594,3 +2612,105 @@ gst_h265_quant_matrix_8x8_get_raster_from_zigzag (guint8 out_quant[64],
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for (i = 0; i < 64; i++)
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out_quant[zigzag_8x8[i]] = quant[i];
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}
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/**
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* gst_h265_quant_matrix_4x4_get_uprightdiagonal_from_raster:
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* @out_quant: (out): The resulting quantization matrix
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* @quant: The source quantization matrix
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*
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* Converts quantization matrix @quant from raster scan order to
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* uprightdiagonal scan order and store the resulting factors
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* into @out_quant.
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*
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* Note: it is an error to pass the same table in both @quant and
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* @out_quant arguments.
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*
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* Since: 1.6
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*/
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void
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gst_h265_quant_matrix_4x4_get_uprightdiagonal_from_raster (guint8 out_quant[16],
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const guint8 quant[16])
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{
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guint i;
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g_return_if_fail (out_quant != quant);
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for (i = 0; i < 16; i++)
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out_quant[i] = quant[uprightdiagonal_4x4[i]];
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}
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/**
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* gst_h265_quant_matrix_4x4_get_raster_from_uprightdiagonal:
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* @out_quant: (out): The resulting quantization matrix
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* @quant: The source quantization matrix
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*
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* Converts quantization matrix @quant from uprightdiagonal scan order to
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* raster scan order and store the resulting factors into @out_quant.
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*
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* Note: it is an error to pass the same table in both @quant and
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* @out_quant arguments.
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*
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* Since: 1.6
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*/
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void
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gst_h265_quant_matrix_4x4_get_raster_from_uprightdiagonal (guint8 out_quant[16],
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const guint8 quant[16])
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{
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guint i;
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g_return_if_fail (out_quant != quant);
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for (i = 0; i < 16; i++)
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out_quant[uprightdiagonal_4x4[i]] = quant[i];
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}
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/**
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* gst_h265_quant_matrix_8x8_get_uprightdiagonal_from_raster:
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* @out_quant: (out): The resulting quantization matrix
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* @quant: The source quantization matrix
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*
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* Converts quantization matrix @quant from raster scan order to
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* uprightdiagonal scan order and store the resulting factors
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* into @out_quant.
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*
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* Note: it is an error to pass the same table in both @quant and
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* @out_quant arguments.
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*
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* Since: 1.6
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*/
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void
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gst_h265_quant_matrix_8x8_get_uprightdiagonal_from_raster (guint8 out_quant[64],
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const guint8 quant[64])
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{
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guint i;
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g_return_if_fail (out_quant != quant);
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for (i = 0; i < 64; i++)
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out_quant[i] = quant[uprightdiagonal_8x8[i]];
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}
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/**
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* gst_h265_quant_matrix_8x8_get_raster_from_uprightdiagonal:
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* @out_quant: (out): The resulting quantization matrix
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* @quant: The source quantization matrix
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*
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* Converts quantization matrix @quant from uprightdiagonal scan order to
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* raster scan order and store the resulting factors into @out_quant.
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*
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* Note: it is an error to pass the same table in both @quant and
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* @out_quant arguments.
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*
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* Since: 1.6
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*/
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void
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gst_h265_quant_matrix_8x8_get_raster_from_uprightdiagonal (guint8 out_quant[64],
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const guint8 quant[64])
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{
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guint i;
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g_return_if_fail (out_quant != quant);
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for (i = 0; i < 64; i++)
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out_quant[uprightdiagonal_8x8[i]] = quant[i];
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}
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@ -1084,5 +1084,26 @@ void gst_h265_quant_matrix_8x8_get_raster_from_zigzag (guint8 out_quant[64],
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#define gst_h265_quant_matrix_32x32_get_raster_from_zigzag \
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gst_h265_quant_matrix_8x8_get_raster_from_zigzag
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void gst_h265_quant_matrix_4x4_get_uprightdiagonal_from_raster (guint8 out_quant[16],
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const guint8 quant[16]);
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void gst_h265_quant_matrix_4x4_get_raster_from_uprightdiagonal (guint8 out_quant[16],
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const guint8 quant[16]);
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void gst_h265_quant_matrix_8x8_get_uprightdiagonal_from_raster (guint8 out_quant[64],
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const guint8 quant[64]);
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void gst_h265_quant_matrix_8x8_get_raster_from_uprightdiagonal (guint8 out_quant[64],
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const guint8 quant[64]);
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#define gst_h265_quant_matrix_16x16_get_uprightdiagonal_from_raster \
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gst_h265_quant_matrix_8x8_get_uprightdiagonal_from_raster
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#define gst_h265_quant_matrix_16x16_get_raster_from_uprightdiagonal\
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gst_h265_quant_matrix_8x8_get_raster_from_uprightdiagonal
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#define gst_h265_quant_matrix_32x32_get_uprightdiagonal_from_raster \
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gst_h265_quant_matrix_8x8_get_uprightdiagonal_from_raster
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#define gst_h265_quant_matrix_32x32_get_raster_from_uprightdiagonal\
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gst_h265_quant_matrix_8x8_get_raster_from_uprightdiagonal
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G_END_DECLS
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#endif
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