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-rw-r--r--video/filter/vf_softpulldown.c182
1 files changed, 182 insertions, 0 deletions
diff --git a/video/filter/vf_softpulldown.c b/video/filter/vf_softpulldown.c
new file mode 100644
index 0000000000..d07f9d6e26
--- /dev/null
+++ b/video/filter/vf_softpulldown.c
@@ -0,0 +1,182 @@
+/*
+ * 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 "config.h"
+#include "mp_msg.h"
+
+#include "img_format.h"
+#include "mp_image.h"
+#include "vf.h"
+
+#include "libvo/fastmemcpy.h"
+
+struct vf_priv_s {
+ int state;
+ long long in;
+ long long out;
+ struct vf_detc_pts_buf ptsbuf;
+ int last_frame_duration;
+ double buffered_pts;
+ mp_image_t *buffered_mpi;
+ int buffered_last_frame_duration;
+};
+
+static int continue_buffered_image(struct vf_instance *vf)
+{
+ double pts = vf->priv->buffered_pts;
+ mp_image_t *mpi = vf->priv->buffered_mpi;
+ vf->priv->out++;
+ vf->priv->state=0;
+ return vf_next_put_image(vf, mpi, vf_softpulldown_adjust_pts(&vf->priv->ptsbuf, pts, 0, 0, vf->priv->buffered_last_frame_duration));
+}
+
+static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts)
+{
+ mp_image_t *dmpi;
+ int ret = 0;
+ int flags = mpi->fields;
+ int state = vf->priv->state;
+
+ dmpi = vf_get_image(vf->next, mpi->imgfmt,
+ MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE |
+ MP_IMGFLAG_PRESERVE, mpi->width, mpi->height);
+
+ vf->priv->in++;
+
+ if ((state == 0 &&
+ !(flags & MP_IMGFIELD_TOP_FIRST)) ||
+ (state == 1 &&
+ flags & MP_IMGFIELD_TOP_FIRST)) {
+ mp_msg(MSGT_VFILTER, MSGL_WARN,
+ "softpulldown: Unexpected field flags: state=%d top_field_first=%d repeat_first_field=%d\n",
+ state,
+ (flags & MP_IMGFIELD_TOP_FIRST) != 0,
+ (flags & MP_IMGFIELD_REPEAT_FIRST) != 0);
+ state ^= 1;
+ }
+
+ if (state == 0) {
+ ret = vf_next_put_image(vf, mpi, vf_softpulldown_adjust_pts(&vf->priv->ptsbuf, pts, 0, 0, vf->priv->last_frame_duration));
+ vf->priv->out++;
+ if (flags & MP_IMGFIELD_REPEAT_FIRST) {
+ my_memcpy_pic(dmpi->planes[0],
+ mpi->planes[0], mpi->w, mpi->h/2,
+ dmpi->stride[0]*2, mpi->stride[0]*2);
+ if (mpi->flags & MP_IMGFLAG_PLANAR) {
+ my_memcpy_pic(dmpi->planes[1],
+ mpi->planes[1],
+ mpi->chroma_width,
+ mpi->chroma_height/2,
+ dmpi->stride[1]*2,
+ mpi->stride[1]*2);
+ my_memcpy_pic(dmpi->planes[2],
+ mpi->planes[2],
+ mpi->chroma_width,
+ mpi->chroma_height/2,
+ dmpi->stride[2]*2,
+ mpi->stride[2]*2);
+ }
+ state=1;
+ }
+ } else {
+ my_memcpy_pic(dmpi->planes[0]+dmpi->stride[0],
+ mpi->planes[0]+mpi->stride[0], mpi->w, mpi->h/2,
+ dmpi->stride[0]*2, mpi->stride[0]*2);
+ if (mpi->flags & MP_IMGFLAG_PLANAR) {
+ my_memcpy_pic(dmpi->planes[1]+dmpi->stride[1],
+ mpi->planes[1]+mpi->stride[1],
+ mpi->chroma_width, mpi->chroma_height/2,
+ dmpi->stride[1]*2, mpi->stride[1]*2);
+ my_memcpy_pic(dmpi->planes[2]+dmpi->stride[2],
+ mpi->planes[2]+mpi->stride[2],
+ mpi->chroma_width, mpi->chroma_height/2,
+ dmpi->stride[2]*2, mpi->stride[2]*2);
+ }
+ ret = vf_next_put_image(vf, dmpi, vf_softpulldown_adjust_pts(&vf->priv->ptsbuf, pts, 0, 0, vf->priv->last_frame_duration));
+ vf->priv->out++;
+ if (flags & MP_IMGFIELD_REPEAT_FIRST) {
+ vf->priv->buffered_mpi = mpi;
+ vf->priv->buffered_pts = pts;
+ vf->priv->buffered_last_frame_duration = vf->priv->last_frame_duration;
+ vf_queue_frame(vf, continue_buffered_image);
+ } else {
+ my_memcpy_pic(dmpi->planes[0],
+ mpi->planes[0], mpi->w, mpi->h/2,
+ dmpi->stride[0]*2, mpi->stride[0]*2);
+ if (mpi->flags & MP_IMGFLAG_PLANAR) {
+ my_memcpy_pic(dmpi->planes[1],
+ mpi->planes[1],
+ mpi->chroma_width,
+ mpi->chroma_height/2,
+ dmpi->stride[1]*2,
+ mpi->stride[1]*2);
+ my_memcpy_pic(dmpi->planes[2],
+ mpi->planes[2],
+ mpi->chroma_width,
+ mpi->chroma_height/2,
+ dmpi->stride[2]*2,
+ mpi->stride[2]*2);
+ }
+ }
+ }
+
+ vf->priv->state = state;
+ if (flags & MP_IMGFIELD_REPEAT_FIRST)
+ vf->priv->last_frame_duration = 3;
+ else
+ vf->priv->last_frame_duration = 2;
+
+ return ret;
+}
+
+static int config(struct vf_instance *vf,
+ int width, int height, int d_width, int d_height,
+ unsigned int flags, unsigned int outfmt)
+{
+ return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
+}
+
+static void uninit(struct vf_instance *vf)
+{
+ mp_msg(MSGT_VFILTER, MSGL_INFO, "softpulldown: %lld frames in, %lld frames out\n", vf->priv->in, vf->priv->out);
+ free(vf->priv);
+}
+
+static int vf_open(vf_instance_t *vf, char *args)
+{
+ vf->config = config;
+ vf->put_image = put_image;
+ vf->uninit = uninit;
+ vf->default_reqs = VFCAP_ACCEPT_STRIDE;
+ vf->priv = calloc(1, sizeof(struct vf_priv_s));
+ vf->priv->state = 0;
+ return 1;
+}
+
+const vf_info_t vf_info_softpulldown = {
+ "mpeg2 soft 3:2 pulldown",
+ "softpulldown",
+ "Tobias Diedrich <ranma+mplayer@tdiedrich.de>",
+ "",
+ vf_open,
+ NULL
+};
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-04 20:10:25 +0000