Add MPlayers libmpcodecs, this will be needed for our libavfilter wraper for it.

1 files changed, 200 insertions, 0 deletions

diff --git a/libavfilter/libmpcodecs/vf_hue.c b/libavfilter/libmpcodecs/vf_hue.c
new file mode 100644
index 0000000000..177142f032
--- /dev/null
+++ b/libavfilter/libmpcodecs/vf_hue.c
@@ -0,0 +1,200 @@
+/*
+ * This file is part of MPlayer.
+ *
+ * MPlayer is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * MPlayer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with MPlayer; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+#include <math.h>
+
+#include "config.h"
+#include "mp_msg.h"
+#include "cpudetect.h"
+
+#include "img_format.h"
+#include "mp_image.h"
+#include "vf.h"
+
+#include "libvo/video_out.h"
+
+#include "m_option.h"
+#include "m_struct.h"
+
+static struct vf_priv_s {
+        uint8_t *buf[2];
+        float hue;
+        float saturation;
+} const vf_priv_dflt = {
+  {NULL, NULL},
+  0.0,
+  1.0,
+};
+
+static void process_C(uint8_t *udst, uint8_t *vdst, uint8_t *usrc, uint8_t *vsrc, int dststride, int srcstride,
+                    int w, int h, float hue, float sat)
+{
+        int i;
+        const int s= rint(sin(hue) * (1<<16) * sat);
+        const int c= rint(cos(hue) * (1<<16) * sat);
+
+        while (h--) {
+                for (i = 0; i<w; i++)
+                {
+                        const int u= usrc[i] - 128;
+                        const int v= vsrc[i] - 128;
+                        int new_u= (c*u - s*v + (1<<15) + (128<<16))>>16;
+                        int new_v= (s*u + c*v + (1<<15) + (128<<16))>>16;
+                        if(new_u & 768) new_u= (-new_u)>>31;
+                        if(new_v & 768) new_v= (-new_v)>>31;
+                        udst[i]= new_u;
+                        vdst[i]= new_v;
+                }
+                usrc += srcstride;
+                vsrc += srcstride;
+                udst += dststride;
+                vdst += dststride;
+        }
+}
+
+static void (*process)(uint8_t *udst, uint8_t *vdst, uint8_t *usrc, uint8_t *vsrc, int dststride, int srcstride,
+                    int w, int h, float hue, float sat);
+
+/* FIXME: add packed yuv version of process */
+
+static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts)
+{
+        mp_image_t *dmpi;
+
+        dmpi=vf_get_image(vf->next, mpi->imgfmt,
+                          MP_IMGTYPE_EXPORT, 0,
+                          mpi->w, mpi->h);
+
+        dmpi->planes[0] = mpi->planes[0];
+        dmpi->stride[0] = mpi->stride[0];
+        dmpi->stride[1] = mpi->stride[1];
+        dmpi->stride[2] = mpi->stride[2];
+
+        if (!vf->priv->buf[0]){
+                vf->priv->buf[0] = malloc(mpi->stride[1]*mpi->h >> mpi->chroma_y_shift);
+                vf->priv->buf[1] = malloc(mpi->stride[2]*mpi->h >> mpi->chroma_y_shift);
+        }
+
+        if (vf->priv->hue == 0 && vf->priv->saturation == 1){
+                dmpi->planes[1] = mpi->planes[1];
+                dmpi->planes[2] = mpi->planes[2];
+        }else {
+                dmpi->planes[1] = vf->priv->buf[0];
+                dmpi->planes[2] = vf->priv->buf[1];
+                process(dmpi->planes[1], dmpi->planes[2],
+                        mpi->planes[1], mpi->planes[2],
+                        dmpi->stride[1],mpi->stride[1],
+                        mpi->w>> mpi->chroma_x_shift, mpi->h>> mpi->chroma_y_shift,
+                        vf->priv->hue, vf->priv->saturation);
+        }
+
+        return vf_next_put_image(vf,dmpi, pts);
+}
+
+static int control(struct vf_instance *vf, int request, void* data)
+{
+        vf_equalizer_t *eq;
+
+        switch (request) {
+        case VFCTRL_SET_EQUALIZER:
+                eq = data;
+                if (!strcmp(eq->item,"hue")) {
+                        vf->priv->hue = eq->value * M_PI / 100;
+                        return CONTROL_TRUE;
+                } else if (!strcmp(eq->item,"saturation")) {
+                        vf->priv->saturation = (eq->value + 100)/100.0;
+                        return CONTROL_TRUE;
+                }
+                break;
+        case VFCTRL_GET_EQUALIZER:
+                eq = data;
+                if (!strcmp(eq->item,"hue")) {
+                        eq->value = rint(vf->priv->hue *100 / M_PI);
+                        return CONTROL_TRUE;
+                }else if (!strcmp(eq->item,"saturation")) {
+                        eq->value = rint(vf->priv->saturation*100 - 100);
+                        return CONTROL_TRUE;
+                }
+                break;
+        }
+        return vf_next_control(vf, request, data);
+}
+
+static int query_format(struct vf_instance *vf, unsigned int fmt)
+{
+        switch (fmt) {
+        case IMGFMT_YVU9:
+        case IMGFMT_IF09:
+        case IMGFMT_YV12:
+        case IMGFMT_I420:
+        case IMGFMT_IYUV:
+        case IMGFMT_CLPL:
+        case IMGFMT_444P:
+        case IMGFMT_422P:
+        case IMGFMT_411P:
+                return vf_next_query_format(vf, fmt);
+        }
+        return 0;
+}
+
+static void uninit(struct vf_instance *vf)
+{
+        free(vf->priv->buf[0]);
+        free(vf->priv->buf[1]);
+        free(vf->priv);
+}
+
+static int vf_open(vf_instance_t *vf, char *args)
+{
+        vf->control=control;
+        vf->query_format=query_format;
+        vf->put_image=put_image;
+        vf->uninit=uninit;
+
+        vf->priv->hue *= M_PI / 180.0;
+
+        process = process_C;
+        return 1;
+}
+
+#define ST_OFF(f) M_ST_OFF(struct vf_priv_s,f)
+static const m_option_t vf_opts_fields[] = {
+  {"hue", ST_OFF(hue), CONF_TYPE_FLOAT, M_OPT_RANGE,-180.0 ,180.0, NULL},
+  {"saturation", ST_OFF(saturation), CONF_TYPE_FLOAT, M_OPT_RANGE,-10.0 ,10.0, NULL},
+  { NULL, NULL, 0, 0, 0, 0,  NULL }
+};
+
+static const m_struct_t vf_opts = {
+  "hue",
+  sizeof(struct vf_priv_s),
+  &vf_priv_dflt,
+  vf_opts_fields
+};
+
+const vf_info_t vf_info_hue = {
+        "hue changer",
+        "hue",
+        "Michael Niedermayer",
+        "",
+        vf_open,
+        &vf_opts
+};