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ffmpeg/libavfilter/libmpcodecs/vf_pullup.c

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/*
* 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 "cpudetect.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "libvo/fastmemcpy.h"
#include "pullup.h"
#undef MAX
#define MAX(a,b) ((a)>(b)?(a):(b))
struct vf_priv_s {
struct pullup_context *ctx;
int init;
int fakecount;
char *qbuf;
};
static void init_pullup(struct vf_instance *vf, mp_image_t *mpi)
{
struct pullup_context *c = vf->priv->ctx;
if (mpi->flags & MP_IMGFLAG_PLANAR) {
c->format = PULLUP_FMT_Y;
c->nplanes = 4;
ff_pullup_preinit_context(c);
c->bpp[0] = c->bpp[1] = c->bpp[2] = 8;
c->w[0] = mpi->w;
c->h[0] = mpi->h;
c->w[1] = c->w[2] = mpi->chroma_width;
c->h[1] = c->h[2] = mpi->chroma_height;
c->w[3] = ((mpi->w+15)/16) * ((mpi->h+15)/16);
c->h[3] = 2;
c->stride[0] = mpi->width;
c->stride[1] = c->stride[2] = mpi->chroma_width;
c->stride[3] = c->w[3];
c->background[1] = c->background[2] = 128;
}
if (ff_gCpuCaps.hasMMX) c->cpu |= PULLUP_CPU_MMX;
if (ff_gCpuCaps.hasMMX2) c->cpu |= PULLUP_CPU_MMX2;
if (ff_gCpuCaps.has3DNow) c->cpu |= PULLUP_CPU_3DNOW;
if (ff_gCpuCaps.has3DNowExt) c->cpu |= PULLUP_CPU_3DNOWEXT;
if (ff_gCpuCaps.hasSSE) c->cpu |= PULLUP_CPU_SSE;
if (ff_gCpuCaps.hasSSE2) c->cpu |= PULLUP_CPU_SSE2;
ff_pullup_init_context(c);
vf->priv->init = 1;
vf->priv->qbuf = malloc(c->w[3]);
}
#if 0
static void get_image(struct vf_instance *vf, mp_image_t *mpi)
{
struct pullup_context *c = vf->priv->ctx;
struct pullup_buffer *b;
if (mpi->type == MP_IMGTYPE_STATIC) return;
if (!vf->priv->init) init_pullup(vf, mpi);
b = ff_pullup_get_buffer(c, 2);
if (!b) return; /* shouldn't happen... */
mpi->priv = b;
mpi->planes[0] = b->planes[0];
mpi->planes[1] = b->planes[1];
mpi->planes[2] = b->planes[2];
mpi->stride[0] = c->stride[0];
mpi->stride[1] = c->stride[1];
mpi->stride[2] = c->stride[2];
mpi->flags |= MP_IMGFLAG_DIRECT;
mpi->flags &= ~MP_IMGFLAG_DRAW_CALLBACK;
}
#endif
static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts)
{
struct pullup_context *c = vf->priv->ctx;
struct pullup_buffer *b;
struct pullup_frame *f;
mp_image_t *dmpi;
int ret;
int p;
int i;
if (!vf->priv->init) init_pullup(vf, mpi);
if (mpi->flags & MP_IMGFLAG_DIRECT) {
b = mpi->priv;
mpi->priv = 0;
} else {
b = ff_pullup_get_buffer(c, 2);
if (!b) {
ff_mp_msg(MSGT_VFILTER,MSGL_ERR,"Could not get buffer from pullup!\n");
f = ff_pullup_get_frame(c);
ff_pullup_release_frame(f);
return 0;
}
memcpy_pic(b->planes[0], mpi->planes[0], mpi->w, mpi->h,
c->stride[0], mpi->stride[0]);
if (mpi->flags & MP_IMGFLAG_PLANAR) {
memcpy_pic(b->planes[1], mpi->planes[1],
mpi->chroma_width, mpi->chroma_height,
c->stride[1], mpi->stride[1]);
memcpy_pic(b->planes[2], mpi->planes[2],
mpi->chroma_width, mpi->chroma_height,
c->stride[2], mpi->stride[2]);
}
}
if (mpi->qscale) {
fast_memcpy(b->planes[3], mpi->qscale, c->w[3]);
fast_memcpy(b->planes[3]+c->w[3], mpi->qscale, c->w[3]);
}
p = mpi->fields & MP_IMGFIELD_TOP_FIRST ? 0 :
(mpi->fields & MP_IMGFIELD_ORDERED ? 1 : 0);
ff_pullup_submit_field(c, b, p);
ff_pullup_submit_field(c, b, p^1);
if (mpi->fields & MP_IMGFIELD_REPEAT_FIRST)
ff_pullup_submit_field(c, b, p);
ff_pullup_release_buffer(b, 2);
f = ff_pullup_get_frame(c);
/* Fake yes for first few frames (buffer depth) to keep from
* breaking A/V sync with G1's bad architecture... */
if (!f) return vf->priv->fakecount ? (--vf->priv->fakecount,1) : 0;
if (f->length < 2) {
ff_pullup_release_frame(f);
f = ff_pullup_get_frame(c);
if (!f) return 0;
if (f->length < 2) {
ff_pullup_release_frame(f);
if (!(mpi->fields & MP_IMGFIELD_REPEAT_FIRST))
return 0;
f = ff_pullup_get_frame(c);
if (!f) return 0;
if (f->length < 2) {
ff_pullup_release_frame(f);
return 0;
}
}
}
#if 0
/* Average qscale tables from both frames. */
if (mpi->qscale) {
for (i=0; i<c->w[3]; i++) {
vf->priv->qbuf[i] = (f->ofields[0]->planes[3][i]
+ f->ofields[1]->planes[3][i+c->w[3]])>>1;
}
}
#else
/* Take worst of qscale tables from both frames. */
if (mpi->qscale) {
for (i=0; i<c->w[3]; i++) {
vf->priv->qbuf[i] = MAX(f->ofields[0]->planes[3][i], f->ofields[1]->planes[3][i+c->w[3]]);
}
}
#endif
/* If the frame isn't already exportable... */
while (!f->buffer) {
dmpi = ff_vf_get_image(vf->next, mpi->imgfmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->width, mpi->height);
/* FIXME: Is it ok to discard dmpi if it's not direct? */
if (!(dmpi->flags & MP_IMGFLAG_DIRECT)) {
ff_pullup_pack_frame(c, f);
break;
}
/* Direct render fields into output buffer */
my_memcpy_pic(dmpi->planes[0], f->ofields[0]->planes[0],
mpi->w, mpi->h/2, dmpi->stride[0]*2, c->stride[0]*2);
my_memcpy_pic(dmpi->planes[0] + dmpi->stride[0],
f->ofields[1]->planes[0] + c->stride[0],
mpi->w, mpi->h/2, dmpi->stride[0]*2, c->stride[0]*2);
if (mpi->flags & MP_IMGFLAG_PLANAR) {
my_memcpy_pic(dmpi->planes[1], f->ofields[0]->planes[1],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[1]*2, c->stride[1]*2);
my_memcpy_pic(dmpi->planes[1] + dmpi->stride[1],
f->ofields[1]->planes[1] + c->stride[1],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[1]*2, c->stride[1]*2);
my_memcpy_pic(dmpi->planes[2], f->ofields[0]->planes[2],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[2]*2, c->stride[2]*2);
my_memcpy_pic(dmpi->planes[2] + dmpi->stride[2],
f->ofields[1]->planes[2] + c->stride[2],
mpi->chroma_width, mpi->chroma_height/2,
dmpi->stride[2]*2, c->stride[2]*2);
}
ff_pullup_release_frame(f);
if (mpi->qscale) {
dmpi->qscale = vf->priv->qbuf;
dmpi->qstride = mpi->qstride;
dmpi->qscale_type = mpi->qscale_type;
}
return ff_vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE);
}
dmpi = ff_vf_get_image(vf->next, mpi->imgfmt,
MP_IMGTYPE_EXPORT, MP_IMGFLAG_ACCEPT_STRIDE,
mpi->width, mpi->height);
dmpi->planes[0] = f->buffer->planes[0];
dmpi->planes[1] = f->buffer->planes[1];
dmpi->planes[2] = f->buffer->planes[2];
dmpi->stride[0] = c->stride[0];
dmpi->stride[1] = c->stride[1];
dmpi->stride[2] = c->stride[2];
if (mpi->qscale) {
dmpi->qscale = vf->priv->qbuf;
dmpi->qstride = mpi->qstride;
dmpi->qscale_type = mpi->qscale_type;
}
ret = ff_vf_next_put_image(vf, dmpi, MP_NOPTS_VALUE);
ff_pullup_release_frame(f);
return ret;
}
static int query_format(struct vf_instance *vf, unsigned int fmt)
{
/* FIXME - support more formats */
switch (fmt) {
case IMGFMT_YV12:
case IMGFMT_IYUV:
case IMGFMT_I420:
return ff_vf_next_query_format(vf, fmt);
}
return 0;
}
static int config(struct vf_instance *vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt)
{
if (height&3) {
ff_mp_msg(MSGT_VFILTER, MSGL_ERR, "height must be divisible by four\n");
return 0;
}
return ff_vf_next_config(vf, width, height, d_width, d_height, flags, outfmt);
}
static void uninit(struct vf_instance *vf)
{
ff_pullup_free_context(vf->priv->ctx);
free(vf->priv);
}
static int vf_open(vf_instance_t *vf, char *args)
{
struct vf_priv_s *p;
struct pullup_context *c;
//vf->get_image = get_image;
vf->put_image = put_image;
vf->config = config;
vf->query_format = query_format;
vf->uninit = uninit;
vf->default_reqs = VFCAP_ACCEPT_STRIDE;
vf->priv = p = calloc(1, sizeof(struct vf_priv_s));
p->ctx = c = ff_pullup_alloc_context();
p->fakecount = 1;
c->junk_left = c->junk_right = 1;
c->junk_top = c->junk_bottom = 4;
c->strict_breaks = 0;
c->metric_plane = 0;
if (args) {
sscanf(args, "%d:%d:%d:%d:%d:%d", &c->junk_left, &c->junk_right, &c->junk_top, &c->junk_bottom, &c->strict_breaks, &c->metric_plane);
}
return 1;
}
const vf_info_t ff_vf_info_pullup = {
"pullup (from field sequence to frames)",
"pullup",
"Rich Felker",
"",
vf_open,
NULL
};
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