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[MOVED FROM BAD 37/56] gst/deinterlace2/tvtime/vfir.c: Implement the VFIR deinterlacing method as simple method.
Original commit message from CVS: * gst/deinterlace2/tvtime/vfir.c: (deinterlace_line_c), (deinterlace_line_mmx), (gst_deinterlace_method_vfir_class_init): Implement the VFIR deinterlacing method as simple method.
This commit is contained in:
Sebastian Dröge
Sebastian Dröge
parent
2403fa4e4c
commit
fe3f7b7409
1 changed files with 34 additions and 81 deletions
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@ -47,15 +47,9 @@
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GType gst_deinterlace_method_vfir_get_type (void);
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typedef GstDeinterlaceMethod GstDeinterlaceMethodVFIR;
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typedef GstDeinterlaceSimpleMethod GstDeinterlaceMethodVFIR;
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typedef struct
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{
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GstDeinterlaceMethodClass parent_class;
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void (*scanline) (uint8_t * dst, uint8_t * lum_m4,
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uint8_t * lum_m3, uint8_t * lum_m2,
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uint8_t * lum_m1, uint8_t * lum, int size);
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} GstDeinterlaceMethodVFIRClass;
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typedef GstDeinterlaceSimpleMethodClass GstDeinterlaceMethodVFIRClass;
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/*
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* The MPEG2 spec uses a slightly harsher filter, they specify
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@ -68,11 +62,16 @@ typedef struct
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* C implementation.
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*/
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static inline void
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deinterlace_line_c (uint8_t * dst, uint8_t * lum_m4,
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uint8_t * lum_m3, uint8_t * lum_m2,
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uint8_t * lum_m1, uint8_t * lum, int size)
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deinterlace_line_c (GstDeinterlaceMethod * self, GstDeinterlace2 * parent,
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guint8 * dst, GstDeinterlaceScanlineData * scanlines, gint width)
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{
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int sum;
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gint sum;
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guint8 *lum_m4 = scanlines->tt1;
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guint8 *lum_m3 = scanlines->t0;
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guint8 *lum_m2 = scanlines->m1;
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guint8 *lum_m1 = scanlines->b0;
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guint8 *lum = scanlines->bb1;
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gint size = width * 2;
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for (; size >= 0; size--) {
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sum = -lum_m4[0];
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@ -93,11 +92,15 @@ deinterlace_line_c (uint8_t * dst, uint8_t * lum_m4,
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#ifdef BUILD_X86_ASM
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#include "mmx.h"
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static void
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deinterlace_line_mmx (uint8_t * dst, uint8_t * lum_m4,
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uint8_t * lum_m3, uint8_t * lum_m2,
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uint8_t * lum_m1, uint8_t * lum, int size)
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deinterlace_line_mmx (GstDeinterlaceMethod * self, GstDeinterlace2 * parent,
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guint8 * dst, GstDeinterlaceScanlineData * scanlines, gint width)
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{
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mmx_t rounder;
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guint8 *lum_m4 = scanlines->tt1;
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guint8 *lum_m3 = scanlines->t0;
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guint8 *lum_m2 = scanlines->m1;
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guint8 *lum_m1 = scanlines->b0;
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guint8 *lum = scanlines->bb1;
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rounder.uw[0] = 4;
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rounder.uw[1] = 4;
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@ -106,7 +109,7 @@ deinterlace_line_mmx (uint8_t * dst, uint8_t * lum_m4,
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pxor_r2r (mm7, mm7);
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movq_m2r (rounder, mm6);
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for (; size > 3; size -= 4) {
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for (; width > 1; width -= 2) {
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movd_m2r (*lum_m4, mm0);
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movd_m2r (*lum_m3, mm1);
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movd_m2r (*lum_m2, mm2);
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@ -137,94 +140,44 @@ deinterlace_line_mmx (uint8_t * dst, uint8_t * lum_m4,
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emms ();
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/* Handle odd widths */
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if (size > 0)
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deinterlace_line_c (dst, lum_m4, lum_m3, lum_m2, lum_m1, lum, size);
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if (width > 0) {
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scanlines->tt1 = lum_m4;
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scanlines->t0 = lum_m3;
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scanlines->m1 = lum_m2;
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scanlines->b0 = lum_m1;
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scanlines->bb1 = lum;
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deinterlace_line_c (self, parent, dst, scanlines, width);
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}
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}
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#endif
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static void
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deinterlace_frame_vfir (GstDeinterlaceMethod * d_method,
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GstDeinterlace2 * object)
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{
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GstDeinterlaceMethodVFIRClass *klass =
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GST_DEINTERLACE_METHOD_VFIR_GET_CLASS (d_method);
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gint line = 0;
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uint8_t *cur_field, *last_field;
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uint8_t *t0, *b0, *tt1, *m1, *bb1, *out_data;
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cur_field =
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GST_BUFFER_DATA (object->field_history[object->history_count - 2].buf);
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last_field =
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GST_BUFFER_DATA (object->field_history[object->history_count - 1].buf);
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out_data = GST_BUFFER_DATA (object->out_buf);
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if (object->field_history[object->history_count - 2].flags ==
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PICTURE_INTERLACED_BOTTOM) {
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memcpy (out_data, cur_field, object->line_length);
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out_data += object->output_stride;
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}
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memcpy (out_data, cur_field, object->line_length);
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out_data += object->output_stride;
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line++;
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for (; line < object->field_height; line++) {
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t0 = cur_field;
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b0 = cur_field + object->field_stride;
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tt1 = last_field;
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m1 = last_field + object->field_stride;
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bb1 = last_field + (object->field_stride * 2);
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/* set valid data for corner cases */
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if (line == 1) {
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tt1 = bb1;
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} else if (line == object->field_height - 1) {
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bb1 = tt1;
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}
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klass->scanline (out_data, tt1, t0, m1, b0, bb1, object->line_length);
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out_data += object->output_stride;
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cur_field += object->field_stride;
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last_field += object->field_stride;
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memcpy (out_data, cur_field, object->line_length);
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out_data += object->output_stride;
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}
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if (object->field_history[object->history_count - 2].flags ==
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PICTURE_INTERLACED_TOP) {
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/* double the last scanline of the top field */
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memcpy (out_data, cur_field, object->line_length);
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}
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}
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G_DEFINE_TYPE (GstDeinterlaceMethodVFIR, gst_deinterlace_method_vfir,
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GST_TYPE_DEINTERLACE_METHOD);
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GST_TYPE_DEINTERLACE_SIMPLE_METHOD);
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static void
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gst_deinterlace_method_vfir_class_init (GstDeinterlaceMethodVFIRClass * klass)
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{
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GstDeinterlaceMethodClass *dim_class = (GstDeinterlaceMethodClass *) klass;
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GstDeinterlaceSimpleMethodClass *dism_class =
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(GstDeinterlaceSimpleMethodClass *) klass;
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#ifdef BUILD_X86_ASM
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guint cpu_flags = oil_cpu_get_flags ();
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#endif
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dim_class->fields_required = 2;
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dim_class->deinterlace_frame = deinterlace_frame_vfir;
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dim_class->name = "Blur Vertical";
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dim_class->nick = "vfir";
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dim_class->latency = 0;
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#ifdef BUILD_X86_ASM
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if (cpu_flags & OIL_IMPL_FLAG_MMX) {
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klass->scanline = deinterlace_line_mmx;
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dism_class->interpolate_scanline = deinterlace_line_mmx;
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} else {
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klass->scanline = deinterlace_line_c;
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dism_class->interpolate_scanline = deinterlace_line_c;
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}
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#else
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klass->scanline = deinterlace_line_c;
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dism_class->interpolate_scanline = deinterlace_line_c;
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#endif
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}
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