1 files changed, 189 insertions, 0 deletions
diff --git a/video/filter/vf.h b/video/filter/vf.h
new file mode 100644
index 0000000000..4c50f0e9cc
--- /dev/null
+++ b/video/filter/vf.h
@@ -0,0 +1,189 @@
+/*
+ * 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.
+ */
+
+#ifndef MPLAYER_VF_H
+#define MPLAYER_VF_H
+
+#include "mp_image.h"
+#include "mpcommon.h"
+#include "stdbool.h"
+
+#include "mpc_info.h"
+#include "vfcap.h"
+
+struct MPOpts;
+struct vf_instance;
+struct vf_priv_s;
+
+typedef struct vf_info {
+    const char *info;
+    const char *name;
+    const char *author;
+    const char *comment;
+    int (*vf_open)(struct vf_instance *vf, char *args);
+    // Ptr to a struct dscribing the options
+    const void *opts;
+} vf_info_t;
+
+#define NUM_NUMBERED_MPI 50
+
+struct vf_image_context {
+    mp_image_t *static_images[2];
+    mp_image_t *temp_images[1];
+    mp_image_t *export_images[1];
+    mp_image_t *numbered_images[NUM_NUMBERED_MPI];
+    int static_idx;
+};
+
+struct vf_format_context {
+    int have_configured;
+    int orig_width, orig_height, orig_fmt;
+};
+
+typedef struct vf_instance {
+    const vf_info_t *info;
+    // funcs:
+    int (*config)(struct vf_instance *vf,
+                  int width, int height, int d_width, int d_height,
+                  unsigned int flags, unsigned int outfmt);
+    int (*control)(struct vf_instance *vf, int request, void *data);
+    int (*query_format)(struct vf_instance *vf, unsigned int fmt);
+    void (*get_image)(struct vf_instance *vf, mp_image_t *mpi);
+    int (*put_image)(struct vf_instance *vf, mp_image_t *mpi, double pts);
+    void (*start_slice)(struct vf_instance *vf, mp_image_t *mpi);
+    void (*draw_slice)(struct vf_instance *vf, unsigned char **src,
+                       int *stride, int w, int h, int x, int y);
+    void (*uninit)(struct vf_instance *vf);
+
+    int (*continue_buffered_image)(struct vf_instance *vf);
+    // caps:
+    unsigned int default_caps; // used by default query_format()
+    unsigned int default_reqs; // used by default config()
+    // data:
+    int w, h;
+    struct vf_image_context imgctx;
+    struct vf_format_context fmt;
+    struct vf_instance *next;
+    mp_image_t *dmpi;
+    struct vf_priv_s *priv;
+    struct MPOpts *opts;
+} vf_instance_t;
+
+typedef struct vf_seteq {
+    const char *item;
+    int value;
+} vf_equalizer_t;
+
+struct vf_ctrl_screenshot {
+    // When the screenshot is complete, pass it to this callback.
+    void (*image_callback)(void *, mp_image_t *);
+    void *image_callback_ctx;
+};
+
+#define VFCTRL_QUERY_MAX_PP_LEVEL 4 // query max postprocessing level (if any)
+#define VFCTRL_SET_PP_LEVEL 5       // set postprocessing level
+#define VFCTRL_SET_EQUALIZER 6 // set color options (brightness,contrast etc)
+#define VFCTRL_GET_EQUALIZER 8 // get color options (brightness,contrast etc)
+#define VFCTRL_DUPLICATE_FRAME 11  // For encoding - encode zero-change frame
+#define VFCTRL_SKIP_NEXT_FRAME 12  // For encoding - drop the next frame that passes thru
+#define VFCTRL_FLUSH_FRAMES    13  // For encoding - flush delayed frames
+#define VFCTRL_SCREENSHOT      14  // Take screenshot, arg is vf_ctrl_screenshot
+#define VFCTRL_INIT_OSD        15  // Filter OSD renderer present?
+#define VFCTRL_SET_DEINTERLACE 18  // Set deinterlacing status
+#define VFCTRL_GET_DEINTERLACE 19  // Get deinterlacing status
+/* Hack to make the OSD state object available to vf_sub which
+ * access OSD/subtitle state outside of normal OSD draw time. */
+#define VFCTRL_SET_OSD_OBJ 20
+#define VFCTRL_SET_YUV_COLORSPACE 22 // arg is struct mp_csp_details*
+#define VFCTRL_GET_YUV_COLORSPACE 23 // arg is struct mp_csp_details*
+
+// functions:
+void vf_mpi_clear(mp_image_t *mpi, int x0, int y0, int w, int h);
+mp_image_t *vf_get_image(vf_instance_t *vf, unsigned int outfmt,
+                         int mp_imgtype, int mp_imgflag, int w, int h);
+
+vf_instance_t *vf_open_plugin(struct MPOpts *opts,
+        const vf_info_t * const *filter_list, vf_instance_t *next,
+        const char *name, char **args);
+struct vf_instance *vf_open_plugin_noerr(struct MPOpts *opts,
+        const vf_info_t *const *filter_list, vf_instance_t *next,
+        const char *name, char **args, int *retcode);
+vf_instance_t *vf_open_filter(struct MPOpts *opts, vf_instance_t *next,
+                              const char *name, char **args);
+vf_instance_t *vf_add_before_vo(vf_instance_t **vf, char *name, char **args);
+vf_instance_t *vf_open_encoder(struct MPOpts *opts, vf_instance_t *next,
+                               const char *name, char *args);
+
+unsigned int vf_match_csp(vf_instance_t **vfp, const unsigned int *list,
+                          unsigned int preferred);
+void vf_clone_mpi_attributes(mp_image_t *dst, mp_image_t *src);
+void vf_queue_frame(vf_instance_t *vf, int (*)(vf_instance_t *));
+int vf_output_queued_frame(vf_instance_t *vf);
+
+// default wrappers:
+int vf_next_config(struct vf_instance *vf,
+                   int width, int height, int d_width, int d_height,
+                   unsigned int flags, unsigned int outfmt);
+int vf_next_control(struct vf_instance *vf, int request, void *data);
+int vf_next_query_format(struct vf_instance *vf, unsigned int fmt);
+int vf_next_put_image(struct vf_instance *vf, mp_image_t *mpi, double pts);
+void vf_next_draw_slice(struct vf_instance *vf, unsigned char **src,
+                        int *stride, int w, int h, int x, int y);
+
+struct m_obj_settings;
+vf_instance_t *append_filters(vf_instance_t *last,
+                              struct m_obj_settings *vf_settings);
+
+void vf_uninit_filter(vf_instance_t *vf);
+void vf_uninit_filter_chain(vf_instance_t *vf);
+
+int vf_config_wrapper(struct vf_instance *vf,
+                      int width, int height, int d_width, int d_height,
+                      unsigned int flags, unsigned int outfmt);
+
+static inline int norm_qscale(int qscale, int type)
+{
+    switch (type) {
+    case 0: // MPEG-1
+        return qscale;
+    case 1: // MPEG-2
+        return qscale >> 1;
+    case 2: // H264
+        return qscale >> 2;
+    case 3: // VP56
+        return (63 - qscale + 2) >> 2;
+    }
+    return qscale;
+}
+
+struct vf_detc_pts_buf {
+    double inpts_prev, outpts_prev;
+    double lastdelta;
+};
+void vf_detc_init_pts_buf(struct vf_detc_pts_buf *p);
+/* Adjust pts when detelecining.
+ * skip_frame: do not render this frame
+ * reset_pattern: set to 1 if the telecine pattern has reset due to scene cut
+ */
+double vf_detc_adjust_pts(struct vf_detc_pts_buf *p, double pts,
+                          bool reset_pattern, bool skip_frame);
+double vf_softpulldown_adjust_pts(struct vf_detc_pts_buf *p, double pts,
+                                  bool reset_pattern, bool skip_frame,
+                                  int last_frame_duration);
+
+#endif /* MPLAYER_VF_H */