mirror of https://github.com/mpv-player/mpv
173 lines
5.0 KiB
C
173 lines
5.0 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "config.h"
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#include "core/mp_msg.h"
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#include "video/img_format.h"
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#include "video/mp_image.h"
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#include "vf.h"
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#include "video/memcpy_pic.h"
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struct vf_priv_s {
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int state;
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long long in;
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long long out;
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struct vf_detc_pts_buf ptsbuf;
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int last_frame_duration;
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struct mp_image *buffer;
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};
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static void copy_pic_field(struct mp_image *dmpi, struct mp_image *mpi, int f)
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{
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for (int p = 0; p < dmpi->num_planes; p++) {
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my_memcpy_pic(dmpi->planes[p] + dmpi->stride[p] * f,
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mpi->planes[p] + mpi->stride[p] * f,
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mpi->plane_w[p], mpi->plane_h[p] / 2,
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dmpi->stride[p] * 2, mpi->stride[p] * 2);
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}
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}
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static int filter(struct vf_instance *vf, struct mp_image *mpi)
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{
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int flags = mpi->fields;
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int state = vf->priv->state;
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struct vf_priv_s *p = vf->priv;
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if (!p->buffer || p->buffer->w != mpi->w || p->buffer->h != mpi->h ||
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p->buffer->imgfmt != mpi->imgfmt)
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{
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mp_image_unrefp(&p->buffer);
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p->buffer = mp_image_alloc(mpi->imgfmt, mpi->w, mpi->h);
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talloc_steal(vf, p->buffer);
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}
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mp_image_copy_attributes(p->buffer, mpi);
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struct mp_image *dmpi = p->buffer;
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vf->priv->in++;
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if ((state == 0 &&
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!(flags & MP_IMGFIELD_TOP_FIRST)) ||
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(state == 1 &&
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flags & MP_IMGFIELD_TOP_FIRST)) {
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mp_msg(MSGT_VFILTER, MSGL_WARN,
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"softpulldown: Unexpected field flags: state=%d top_field_first=%d repeat_first_field=%d\n",
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state,
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(flags & MP_IMGFIELD_TOP_FIRST) != 0,
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(flags & MP_IMGFIELD_REPEAT_FIRST) != 0);
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state ^= 1;
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}
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if (state == 0) {
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struct mp_image *new = mp_image_new_ref(mpi);
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new->pts = vf_softpulldown_adjust_pts(&vf->priv->ptsbuf, mpi->pts, 0, 0, vf->priv->last_frame_duration);
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vf_add_output_frame(vf, new);
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vf->priv->out++;
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if (flags & MP_IMGFIELD_REPEAT_FIRST) {
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copy_pic_field(dmpi, mpi, 0);
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state=1;
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}
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} else {
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copy_pic_field(dmpi, mpi, 1);
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struct mp_image *new = mp_image_new_ref(mpi);
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new->pts = vf_softpulldown_adjust_pts(&vf->priv->ptsbuf, mpi->pts, 0, 0, vf->priv->last_frame_duration);
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vf_add_output_frame(vf, new);
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vf->priv->out++;
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if (flags & MP_IMGFIELD_REPEAT_FIRST) {
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struct mp_image *new2 = mp_image_new_ref(mpi);
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new2->pts = vf_softpulldown_adjust_pts(&vf->priv->ptsbuf, mpi->pts, 0, 0, 3);
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vf_add_output_frame(vf, new2);
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vf->priv->out++;
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vf->priv->state=0;
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} else {
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copy_pic_field(dmpi, mpi, 0);
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}
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}
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vf->priv->state = state;
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if (flags & MP_IMGFIELD_REPEAT_FIRST)
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vf->priv->last_frame_duration = 3;
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else
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vf->priv->last_frame_duration = 2;
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talloc_free(mpi);
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return 0;
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}
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static int config(struct vf_instance *vf,
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int width, int height, int d_width, int d_height,
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unsigned int flags, unsigned int outfmt)
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{
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return vf_next_config(vf,width,height,d_width,d_height,flags,outfmt);
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}
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static int control(vf_instance_t *vf, int request, void *data)
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{
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switch (request) {
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case VFCTRL_SEEK_RESET:
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vf_detc_init_pts_buf(&vf->priv->ptsbuf);
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break;
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}
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return vf_next_control(vf, request, data);
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}
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static void uninit(struct vf_instance *vf)
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{
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mp_msg(MSGT_VFILTER, MSGL_INFO, "softpulldown: %lld frames in, %lld frames out\n", vf->priv->in, vf->priv->out);
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free(vf->priv);
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}
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static int query_format(struct vf_instance *vf, unsigned int fmt)
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{
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struct mp_imgfmt_desc desc = mp_imgfmt_get_desc(fmt);
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if (!(desc.flags & MP_IMGFLAG_YUV_P))
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return 0;
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if (desc.plane_bits != 8)
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return 0;
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return vf_next_query_format(vf, fmt);
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}
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static int vf_open(vf_instance_t *vf, char *args)
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{
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vf->config = config;
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vf->filter_ext = filter;
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vf->control = control;
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vf->uninit = uninit;
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vf->query_format = query_format;
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vf->priv = calloc(1, sizeof(struct vf_priv_s));
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vf->priv->last_frame_duration = 2;
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vf_detc_init_pts_buf(&vf->priv->ptsbuf);
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return 1;
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}
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const vf_info_t vf_info_softpulldown = {
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"mpeg2 soft 3:2 pulldown",
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"softpulldown",
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"Tobias Diedrich <ranma+mplayer@tdiedrich.de>",
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"",
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vf_open,
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NULL
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};
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