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mpv/libmpcodecs/vf.c
Rudolf Polzer 2adc81f0a2 vf_dlopen: add a generic filter to load external filters 
Usage: -vf dlopen=filename.so:args...

Examples of such filters are provided in TOOLS/vf_dlopen/
2012-08-23 13:13:53 +02:00

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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 <assert.h>
#include <sys/types.h>
#include <libavutil/common.h>
#include <libavutil/mem.h>
#include "config.h"
#include "mp_msg.h"
#include "m_option.h"
#include "m_struct.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "libvo/fastmemcpy.h"
extern const vf_info_t vf_info_vo;
extern const vf_info_t vf_info_rectangle;
extern const vf_info_t vf_info_bmovl;
extern const vf_info_t vf_info_crop;
extern const vf_info_t vf_info_expand;
extern const vf_info_t vf_info_pp;
extern const vf_info_t vf_info_scale;
extern const vf_info_t vf_info_format;
extern const vf_info_t vf_info_noformat;
extern const vf_info_t vf_info_flip;
extern const vf_info_t vf_info_rotate;
extern const vf_info_t vf_info_mirror;
extern const vf_info_t vf_info_palette;
extern const vf_info_t vf_info_lavc;
extern const vf_info_t vf_info_dvbscale;
extern const vf_info_t vf_info_cropdetect;
extern const vf_info_t vf_info_test;
extern const vf_info_t vf_info_noise;
extern const vf_info_t vf_info_yvu9;
extern const vf_info_t vf_info_lavcdeint;
extern const vf_info_t vf_info_eq;
extern const vf_info_t vf_info_eq2;
extern const vf_info_t vf_info_gradfun;
extern const vf_info_t vf_info_halfpack;
extern const vf_info_t vf_info_dint;
extern const vf_info_t vf_info_1bpp;
extern const vf_info_t vf_info_2xsai;
extern const vf_info_t vf_info_unsharp;
extern const vf_info_t vf_info_swapuv;
extern const vf_info_t vf_info_il;
extern const vf_info_t vf_info_fil;
extern const vf_info_t vf_info_boxblur;
extern const vf_info_t vf_info_sab;
extern const vf_info_t vf_info_smartblur;
extern const vf_info_t vf_info_perspective;
extern const vf_info_t vf_info_down3dright;
extern const vf_info_t vf_info_field;
extern const vf_info_t vf_info_denoise3d;
extern const vf_info_t vf_info_hqdn3d;
extern const vf_info_t vf_info_detc;
extern const vf_info_t vf_info_telecine;
extern const vf_info_t vf_info_tinterlace;
extern const vf_info_t vf_info_tfields;
extern const vf_info_t vf_info_ivtc;
extern const vf_info_t vf_info_ilpack;
extern const vf_info_t vf_info_dsize;
extern const vf_info_t vf_info_decimate;
extern const vf_info_t vf_info_softpulldown;
extern const vf_info_t vf_info_pullup;
extern const vf_info_t vf_info_filmdint;
extern const vf_info_t vf_info_framestep;
extern const vf_info_t vf_info_tile;
extern const vf_info_t vf_info_delogo;
extern const vf_info_t vf_info_remove_logo;
extern const vf_info_t vf_info_hue;
extern const vf_info_t vf_info_spp;
extern const vf_info_t vf_info_uspp;
extern const vf_info_t vf_info_fspp;
extern const vf_info_t vf_info_pp7;
extern const vf_info_t vf_info_yuvcsp;
extern const vf_info_t vf_info_kerndeint;
extern const vf_info_t vf_info_rgbtest;
extern const vf_info_t vf_info_qp;
extern const vf_info_t vf_info_phase;
extern const vf_info_t vf_info_divtc;
extern const vf_info_t vf_info_harddup;
extern const vf_info_t vf_info_softskip;
extern const vf_info_t vf_info_screenshot;
extern const vf_info_t vf_info_screenshot_force;
extern const vf_info_t vf_info_ass;
extern const vf_info_t vf_info_mcdeint;
extern const vf_info_t vf_info_yadif;
extern const vf_info_t vf_info_blackframe;
extern const vf_info_t vf_info_geq;
extern const vf_info_t vf_info_ow;
extern const vf_info_t vf_info_fixpts;
extern const vf_info_t vf_info_stereo3d;
extern const vf_info_t vf_info_dlopen;
// list of available filters:
static const vf_info_t *const filter_list[] = {
&vf_info_rectangle,
#ifdef HAVE_POSIX_SELECT
&vf_info_bmovl,
#endif
&vf_info_crop,
&vf_info_expand,
&vf_info_scale,
// &vf_info_osd,
&vf_info_vo,
&vf_info_format,
&vf_info_noformat,
&vf_info_flip,
&vf_info_rotate,
&vf_info_mirror,
&vf_info_palette,
&vf_info_pp7,
#ifdef CONFIG_LIBPOSTPROC
&vf_info_pp,
#endif
&vf_info_lavc,
&vf_info_lavcdeint,
&vf_info_screenshot,
&vf_info_screenshot_force,
&vf_info_fspp,
&vf_info_uspp,
&vf_info_dvbscale,
&vf_info_cropdetect,
&vf_info_test,
&vf_info_noise,
&vf_info_yvu9,
&vf_info_eq,
&vf_info_eq2,
&vf_info_gradfun,
&vf_info_halfpack,
&vf_info_dint,
&vf_info_1bpp,
&vf_info_2xsai,
&vf_info_unsharp,
&vf_info_swapuv,
&vf_info_il,
&vf_info_fil,
&vf_info_boxblur,
&vf_info_sab,
&vf_info_smartblur,
&vf_info_perspective,
&vf_info_down3dright,
&vf_info_field,
&vf_info_denoise3d,
&vf_info_hqdn3d,
&vf_info_detc,
&vf_info_telecine,
&vf_info_tinterlace,
&vf_info_tfields,
&vf_info_ivtc,
&vf_info_ilpack,
&vf_info_dsize,
&vf_info_decimate,
&vf_info_softpulldown,
&vf_info_pullup,
&vf_info_filmdint,
&vf_info_framestep,
&vf_info_tile,
&vf_info_delogo,
&vf_info_remove_logo,
&vf_info_hue,
#ifdef CONFIG_FFMPEG_INTERNALS
&vf_info_spp,
&vf_info_mcdeint,
#endif
&vf_info_geq,
&vf_info_qp,
&vf_info_yuvcsp,
&vf_info_kerndeint,
&vf_info_rgbtest,
&vf_info_phase,
&vf_info_divtc,
&vf_info_harddup,
&vf_info_softskip,
#ifdef CONFIG_ASS
&vf_info_ass,
#endif
&vf_info_yadif,
&vf_info_blackframe,
&vf_info_ow,
&vf_info_fixpts,
&vf_info_stereo3d,
&vf_info_dlopen,
NULL
};
// For the vf option
const m_obj_list_t vf_obj_list = {
(void **)filter_list,
M_ST_OFF(vf_info_t, name),
M_ST_OFF(vf_info_t, info),
M_ST_OFF(vf_info_t, opts)
};
//============================================================================
// mpi stuff:
void vf_mpi_clear(mp_image_t *mpi, int x0, int y0, int w, int h)
{
int y;
if (mpi->flags & MP_IMGFLAG_PLANAR) {
y0 &= ~1;
h += h & 1;
if (x0 == 0 && w == mpi->width) {
// full width clear:
memset(mpi->planes[0] + mpi->stride[0] * y0, 0, mpi->stride[0] * h);
memset(mpi->planes[1] + mpi->stride[1] *(y0 >> mpi->chroma_y_shift),
128, mpi->stride[1] * (h >> mpi->chroma_y_shift));
memset(mpi->planes[2] + mpi->stride[2] *(y0 >> mpi->chroma_y_shift),
128, mpi->stride[2] * (h >> mpi->chroma_y_shift));
} else
for (y = y0; y < y0 + h; y += 2) {
memset(mpi->planes[0] + x0 + mpi->stride[0] * y, 0, w);
memset(mpi->planes[0] + x0 + mpi->stride[0] * (y + 1), 0, w);
memset(mpi->planes[1] + (x0 >> mpi->chroma_x_shift) +
mpi->stride[1] * (y >> mpi->chroma_y_shift),
128, (w >> mpi->chroma_x_shift));
memset(mpi->planes[2] + (x0 >> mpi->chroma_x_shift) +
mpi->stride[2] * (y >> mpi->chroma_y_shift),
128, (w >> mpi->chroma_x_shift));
}
return;
}
// packed:
for (y = y0; y < y0 + h; y++) {
unsigned char *dst = mpi->planes[0] + mpi->stride[0] * y +
(mpi->bpp >> 3) * x0;
if (mpi->flags & MP_IMGFLAG_YUV) {
unsigned int *p = (unsigned int *) dst;
int size = (mpi->bpp >> 3) * w / 4;
int i;
#ifdef BIG_ENDIAN
#define CLEAR_PACKEDYUV_PATTERN 0x00800080
#define CLEAR_PACKEDYUV_PATTERN_SWAPPED 0x80008000
#else
#define CLEAR_PACKEDYUV_PATTERN 0x80008000
#define CLEAR_PACKEDYUV_PATTERN_SWAPPED 0x00800080
#endif
if (mpi->flags & MP_IMGFLAG_SWAPPED) {
for (i = 0; i < size - 3; i += 4)
p[i] = p[i + 1] = p[i + 2] = p[i + 3] = CLEAR_PACKEDYUV_PATTERN_SWAPPED;
for (; i < size; i++)
p[i] = CLEAR_PACKEDYUV_PATTERN_SWAPPED;
} else {
for (i = 0; i < size - 3; i += 4)
p[i] = p[i + 1] = p[i + 2] = p[i + 3] = CLEAR_PACKEDYUV_PATTERN;
for (; i < size; i++)
p[i] = CLEAR_PACKEDYUV_PATTERN;
}
} else
memset(dst, 0, (mpi->bpp >> 3) * w);
}
}
mp_image_t *vf_get_image(vf_instance_t *vf, unsigned int outfmt,
int mp_imgtype, int mp_imgflag, int w, int h)
{
mp_image_t *mpi = NULL;
int w2;
int number = mp_imgtype >> 16;
assert(w == -1 || w >= vf->w);
assert(h == -1 || h >= vf->h);
assert(vf->w > 0);
assert(vf->h > 0);
if (w == -1)
w = vf->w;
if (h == -1)
h = vf->h;
w2 = (mp_imgflag & MP_IMGFLAG_ACCEPT_ALIGNED_STRIDE) ? FFALIGN(w, 32) : w;
if (vf->put_image == vf_next_put_image) {
// passthru mode, if the filter uses the fallback/default put_image()
return vf_get_image(vf->next, outfmt, mp_imgtype, mp_imgflag, w, h);
}
// Note: we should call libvo first to check if it supports direct rendering
// and if not, then fallback to software buffers:
switch (mp_imgtype & 0xff) {
case MP_IMGTYPE_EXPORT:
if (!vf->imgctx.export_images[0])
vf->imgctx.export_images[0] = new_mp_image(w2, h);
mpi = vf->imgctx.export_images[0];
break;
case MP_IMGTYPE_STATIC:
if (!vf->imgctx.static_images[0])
vf->imgctx.static_images[0] = new_mp_image(w2, h);
mpi = vf->imgctx.static_images[0];
break;
case MP_IMGTYPE_TEMP:
if (!vf->imgctx.temp_images[0])
vf->imgctx.temp_images[0] = new_mp_image(w2, h);
mpi = vf->imgctx.temp_images[0];
break;
case MP_IMGTYPE_IPB:
if (!(mp_imgflag & MP_IMGFLAG_READABLE)) { // B frame:
if (!vf->imgctx.temp_images[0])
vf->imgctx.temp_images[0] = new_mp_image(w2, h);
mpi = vf->imgctx.temp_images[0];
break;
}
case MP_IMGTYPE_IP:
if (!vf->imgctx.static_images[vf->imgctx.static_idx])
vf->imgctx.static_images[vf->imgctx.static_idx] = new_mp_image(w2, h);
mpi = vf->imgctx.static_images[vf->imgctx.static_idx];
vf->imgctx.static_idx ^= 1;
break;
case MP_IMGTYPE_NUMBERED:
if (number == -1) {
int i;
for (i = 0; i < NUM_NUMBERED_MPI; i++)
if (!vf->imgctx.numbered_images[i] ||
!vf->imgctx.numbered_images[i]->usage_count)
break;
number = i;
}
if (number < 0 || number >= NUM_NUMBERED_MPI)
return NULL;
if (!vf->imgctx.numbered_images[number])
vf->imgctx.numbered_images[number] = new_mp_image(w2, h);
mpi = vf->imgctx.numbered_images[number];
mpi->number = number;
break;
}
if (mpi) {
mpi->type = mp_imgtype;
mpi->w = vf->w;
mpi->h = vf->h;
// keep buffer allocation status & color flags only:
mpi->flags &= MP_IMGFLAG_ALLOCATED | MP_IMGFLAG_TYPE_DISPLAYED |
MP_IMGFLAGMASK_COLORS;
// accept restrictions, draw_slice and palette flags only:
mpi->flags |= mp_imgflag & (MP_IMGFLAGMASK_RESTRICTIONS |
MP_IMGFLAG_DRAW_CALLBACK | MP_IMGFLAG_RGB_PALETTE);
if (!vf->draw_slice)
mpi->flags &= ~MP_IMGFLAG_DRAW_CALLBACK;
if (mpi->width != w2 || mpi->height != h) {
if (mpi->flags & MP_IMGFLAG_ALLOCATED) {
if (mpi->width < w2 || mpi->height < h) {
// need to re-allocate buffer memory:
av_free(mpi->planes[0]);
mpi->flags &= ~MP_IMGFLAG_ALLOCATED;
mp_msg(MSGT_VFILTER, MSGL_V,
"vf.c: have to REALLOCATE buffer memory :(\n");
}
}
mpi->width = w2;
mpi->chroma_width = (w2 + (1 << mpi->chroma_x_shift) - 1) >>
mpi->chroma_x_shift;
mpi->height = h;
mpi->chroma_height = (h + (1 << mpi->chroma_y_shift) - 1) >>
mpi->chroma_y_shift;
}
if (!mpi->bpp)
mp_image_setfmt(mpi, outfmt);
if (!(mpi->flags & MP_IMGFLAG_ALLOCATED) &&
mpi->type > MP_IMGTYPE_EXPORT) {
// check libvo first!
if (vf->get_image)
vf->get_image(vf, mpi);
if (!(mpi->flags & MP_IMGFLAG_DIRECT)) {
// non-direct and not yet allocated image. allocate it!
if (!mpi->bpp) { // no way we can allocate this
mp_msg(MSGT_DECVIDEO, MSGL_FATAL,
"vf_get_image: Tried to allocate a format that "
"can not be allocated!\n");
return NULL;
}
// check if codec prefer aligned stride:
if (mp_imgflag & MP_IMGFLAG_PREFER_ALIGNED_STRIDE) {
int align = (mpi->flags & MP_IMGFLAG_PLANAR &&
mpi->flags & MP_IMGFLAG_YUV) ?
(16 << mpi->chroma_x_shift) - 1 : 32; // OK?
w2 = FFALIGN(w, align);
if (mpi->width != w2) {
// we have to change width... check if we CAN co it:
int flags = vf->query_format(vf, outfmt);
// should not fail
if (!(flags & (VFCAP_CSP_SUPPORTED |
VFCAP_CSP_SUPPORTED_BY_HW)))
mp_msg(MSGT_DECVIDEO, MSGL_WARN,
"??? vf_get_image{vf->query_format(outfmt)} "
"failed!\n");
if (flags & VFCAP_ACCEPT_STRIDE) {
mpi->width = w2;
mpi->chroma_width =
(w2 + (1 << mpi->chroma_x_shift) - 1) >>
mpi->chroma_x_shift;
}
}
}
mp_image_alloc_planes(mpi);
vf_mpi_clear(mpi, 0, 0, mpi->width, mpi->height);
}
}
if (mpi->flags & MP_IMGFLAG_DRAW_CALLBACK)
if (vf->start_slice)
vf->start_slice(vf, mpi);
if (!(mpi->flags & MP_IMGFLAG_TYPE_DISPLAYED)) {
mp_msg(MSGT_DECVIDEO, MSGL_V,
"*** [%s] %s%s mp_image_t, %dx%dx%dbpp %s %s, %d bytes\n",
vf->info->name,
(mpi->type == MP_IMGTYPE_EXPORT) ? "Exporting" :
((mpi->flags & MP_IMGFLAG_DIRECT) ?
"Direct Rendering" : "Allocating"),
(mpi->flags & MP_IMGFLAG_DRAW_CALLBACK) ? " (slices)" : "",
mpi->width, mpi->height, mpi->bpp,
(mpi->flags & MP_IMGFLAG_YUV) ? "YUV" :
((mpi->flags & MP_IMGFLAG_SWAPPED) ? "BGR" : "RGB"),
(mpi->flags & MP_IMGFLAG_PLANAR) ? "planar" : "packed",
mpi->bpp * mpi->width * mpi->height / 8);
mp_msg(MSGT_DECVIDEO, MSGL_DBG2, "(imgfmt: %x, planes: %p,%p,%p "
"strides: %d,%d,%d, chroma: %dx%d, shift: h:%d,v:%d)\n",
mpi->imgfmt, mpi->planes[0], mpi->planes[1], mpi->planes[2],
mpi->stride[0], mpi->stride[1], mpi->stride[2],
mpi->chroma_width, mpi->chroma_height,
mpi->chroma_x_shift, mpi->chroma_y_shift);
mpi->flags |= MP_IMGFLAG_TYPE_DISPLAYED;
}
mpi->qscale = NULL;
}
mpi->usage_count++;
return mpi;
}
//============================================================================
// By default vf doesn't accept MPEGPES
static int vf_default_query_format(struct vf_instance *vf, unsigned int fmt)
{
if (fmt == IMGFMT_MPEGPES)
return 0;
return vf_next_query_format(vf, fmt);
}
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;
int i;
for (i = 0;; i++) {
if (!filter_list[i]) {
mp_tmsg(MSGT_VFILTER, MSGL_ERR,
"Couldn't find video filter '%s'.\n", name);
return NULL; // no such filter!
}
if (!strcmp(filter_list[i]->name, name))
break;
}
vf = calloc(1, sizeof *vf);
vf->opts = opts;
vf->info = filter_list[i];
vf->next = next;
vf->config = vf_next_config;
vf->control = vf_next_control;
vf->query_format = vf_default_query_format;
vf->put_image = vf_next_put_image;
vf->default_caps = VFCAP_ACCEPT_STRIDE;
vf->default_reqs = 0;
if (vf->info->opts) { // vf_vo get some special argument
const m_struct_t *st = vf->info->opts;
void *vf_priv = m_struct_alloc(st);
int n;
for (n = 0; args && args[2 * n]; n++)
m_struct_set(st, vf_priv, args[2 * n], bstr0(args[2 * n + 1]));
vf->priv = vf_priv;
args = NULL;
} else // Otherwise we should have the '_oldargs_'
if (args && !strcmp(args[0], "_oldargs_"))
args = (char **)args[1];
else
args = NULL;
*retcode = vf->info->vf_open(vf, (char *)args);
if (*retcode > 0)
return vf;
free(vf);
return NULL;
}
struct vf_instance *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 = vf_open_plugin_noerr(opts, filter_list, next,
name, args, &(int){0});
if (!vf)
mp_tmsg(MSGT_VFILTER, MSGL_ERR, "Couldn't open video filter '%s'.\n",
name);
return vf;
}
vf_instance_t *vf_open_filter(struct MPOpts *opts, vf_instance_t *next,
const char *name, char **args)
{
if (args && strcmp(args[0], "_oldargs_")) {
int i, l = 0;
for (i = 0; args && args[2 * i]; i++)
l += 1 + strlen(args[2 * i]) + 1 + strlen(args[2 * i + 1]);
l += strlen(name);
{
char str[l + 1];
char *p = str;
p += sprintf(str, "%s", name);
for (i = 0; args && args[2 * i]; i++)
p += sprintf(p, " %s=%s", args[2 * i], args[2 * i + 1]);
mp_msg(MSGT_VFILTER, MSGL_INFO, "%s[%s]\n",
mp_gtext("Opening video filter: "), str);
}
} else if (strcmp(name, "vo")) {
if (args && strcmp(args[0], "_oldargs_") == 0)
mp_msg(MSGT_VFILTER, MSGL_INFO, "%s[%s=%s]\n",
mp_gtext("Opening video filter: "), name, args[1]);
else
mp_msg(MSGT_VFILTER, MSGL_INFO, "%s[%s]\n",
mp_gtext("Opening video filter: "), name);
}
return vf_open_plugin(opts, filter_list, next, name, args);
}
/**
* \brief adds a filter before the last one (which should be the vo filter).
* \param vf start of the filter chain.
* \param name name of the filter to add.
* \param args argument list for the filter.
* \return pointer to the filter instance that was created.
*/
vf_instance_t *vf_add_before_vo(vf_instance_t **vf, char *name, char **args)
{
struct MPOpts *opts = (*vf)->opts;
vf_instance_t *vo, *prev = NULL, *new;
// Find the last filter (should be vf_vo)
for (vo = *vf; vo->next; vo = vo->next)
prev = vo;
new = vf_open_filter(opts, vo, name, args);
if (prev)
prev->next = new;
else
*vf = new;
return new;
}
//============================================================================
unsigned int vf_match_csp(vf_instance_t **vfp, const unsigned int *list,
unsigned int preferred)
{
vf_instance_t *vf = *vfp;
struct MPOpts *opts = vf->opts;
const unsigned int *p;
unsigned int best = 0;
int ret;
if ((p = list))
while (*p) {
ret = vf->query_format(vf, *p);
mp_msg(MSGT_VFILTER, MSGL_V, "[%s] query(%s) -> %x\n",
vf->info->name, vo_format_name(*p), ret);
if (ret & VFCAP_CSP_SUPPORTED_BY_HW) {
best = *p;
break;
}
if (ret & VFCAP_CSP_SUPPORTED && !best)
best = *p;
++p;
}
if (best)
return best; // bingo, they have common csp!
// ok, then try with scale:
if (vf->info == &vf_info_scale)
return 0; // avoid infinite recursion!
vf = vf_open_filter(opts, vf, "scale", NULL);
if (!vf)
return 0; // failed to init "scale"
// try the preferred csp first:
if (preferred && vf->query_format(vf, preferred))
best = preferred;
else
// try the list again, now with "scaler" :
if ((p = list))
while (*p) {
ret = vf->query_format(vf, *p);
mp_msg(MSGT_VFILTER, MSGL_V, "[%s] query(%s) -> %x\n",
vf->info->name, vo_format_name(*p), ret);
if (ret & VFCAP_CSP_SUPPORTED_BY_HW) {
best = *p;
break;
}
if (ret & VFCAP_CSP_SUPPORTED && !best)
best = *p;
++p;
}
if (best)
*vfp = vf; // else uninit vf !FIXME!
return best;
}
void vf_clone_mpi_attributes(mp_image_t *dst, mp_image_t *src)
{
dst->pict_type = src->pict_type;
dst->fields = src->fields;
dst->qscale_type = src->qscale_type;
if (dst->width == src->width && dst->height == src->height) {
dst->qstride = src->qstride;
dst->qscale = src->qscale;
}
}
void vf_queue_frame(vf_instance_t *vf, int (*func)(vf_instance_t *))
{
vf->continue_buffered_image = func;
}
// Output the next buffered image (if any) from the filter chain.
// The queue could be kept as a simple stack/list instead avoiding the
// looping here, but there's currently no good context variable where
// that could be stored so this was easier to implement.
int vf_output_queued_frame(vf_instance_t *vf)
{
while (1) {
int ret;
vf_instance_t *current;
vf_instance_t *last = NULL;
int (*tmp)(vf_instance_t *);
for (current = vf; current; current = current->next)
if (current->continue_buffered_image)
last = current;
if (!last)
return 0;
tmp = last->continue_buffered_image;
last->continue_buffered_image = NULL;
ret = tmp(last);
if (ret)
return ret;
}
}
/**
* \brief Video config() function wrapper
*
* Blocks config() calls with different size or format for filters
* with VFCAP_CONSTANT
*
* First call is redirected to vf->config.
*
* In following calls, it verifies that the configuration parameters
* are unchanged, and returns either success or error.
*
*/
int vf_config_wrapper(struct vf_instance *vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt)
{
vf->fmt.have_configured = 1;
vf->fmt.orig_height = height;
vf->fmt.orig_width = width;
vf->fmt.orig_fmt = outfmt;
int r = vf->config(vf, width, height, d_width, d_height, flags, outfmt);
if (!r)
vf->fmt.have_configured = 0;
return r;
}
int vf_next_config(struct vf_instance *vf,
int width, int height, int d_width, int d_height,
unsigned int voflags, unsigned int outfmt)
{
struct MPOpts *opts = vf->opts;
int miss;
int flags = vf->next->query_format(vf->next, outfmt);
if (!flags) {
// hmm. colorspace mismatch!!!
// let's insert the 'scale' filter, it does the job for us:
vf_instance_t *vf2;
if (vf->next->info == &vf_info_scale)
return 0; // scale->scale
vf2 = vf_open_filter(opts, vf->next, "scale", NULL);
if (!vf2)
return 0; // shouldn't happen!
vf->next = vf2;
flags = vf->next->query_format(vf->next, outfmt);
if (!flags) {
mp_tmsg(MSGT_VFILTER, MSGL_ERR, "Cannot find matching colorspace, "
"even by inserting 'scale' :(\n");
return 0; // FAIL
}
}
mp_msg(MSGT_VFILTER, MSGL_V, "REQ: flags=0x%X req=0x%X \n",
flags, vf->default_reqs);
miss = vf->default_reqs - (flags & vf->default_reqs);
if (miss & VFCAP_ACCEPT_STRIDE) {
// vf requires stride support but vf->next doesn't support it!
// let's insert the 'expand' filter, it does the job for us:
vf_instance_t *vf2 = vf_open_filter(opts, vf->next, "expand", NULL);
if (!vf2)
return 0; // shouldn't happen!
vf->next = vf2;
}
vf->next->w = width;
vf->next->h = height;
return vf_config_wrapper(vf->next, width, height, d_width, d_height,
voflags, outfmt);
}
int vf_next_control(struct vf_instance *vf, int request, void *data)
{
return vf->next->control(vf->next, request, data);
}
int vf_next_query_format(struct vf_instance *vf, unsigned int fmt)
{
int flags = vf->next->query_format(vf->next, fmt);
if (flags)
flags |= vf->default_caps;
return flags;
}
int vf_next_put_image(struct vf_instance *vf, mp_image_t *mpi, double pts)
{
return vf->next->put_image(vf->next, mpi, pts);
}
void vf_next_draw_slice(struct vf_instance *vf, unsigned char **src,
int *stride, int w, int h, int x, int y)
{
if (vf->next->draw_slice) {
vf->next->draw_slice(vf->next, src, stride, w, h, x, y);
return;
}
if (!vf->dmpi) {
mp_msg(MSGT_VFILTER, MSGL_ERR,
"draw_slice: dmpi not stored by vf_%s\n", vf->info->name);
return;
}
if (!(vf->dmpi->flags & MP_IMGFLAG_PLANAR)) {
memcpy_pic(vf->dmpi->planes[0] + y * vf->dmpi->stride[0] +
vf->dmpi->bpp / 8 * x,
src[0], vf->dmpi->bpp / 8 * w, h, vf->dmpi->stride[0],
stride[0]);
return;
}
memcpy_pic(vf->dmpi->planes[0] + y * vf->dmpi->stride[0] + x, src[0],
w, h, vf->dmpi->stride[0], stride[0]);
memcpy_pic(vf->dmpi->planes[1]
+ (y >> vf->dmpi->chroma_y_shift) * vf->dmpi->stride[1]
+ (x >> vf->dmpi->chroma_x_shift),
src[1], w >> vf->dmpi->chroma_x_shift,
h >> vf->dmpi->chroma_y_shift, vf->dmpi->stride[1], stride[1]);
memcpy_pic(vf->dmpi->planes[2]
+ (y >> vf->dmpi->chroma_y_shift) * vf->dmpi->stride[2]
+ (x >> vf->dmpi->chroma_x_shift),
src[2], w >> vf->dmpi->chroma_x_shift,
h >> vf->dmpi->chroma_y_shift, vf->dmpi->stride[2], stride[2]);
}
//============================================================================
vf_instance_t *append_filters(vf_instance_t *last,
struct m_obj_settings *vf_settings)
{
struct MPOpts *opts = last->opts;
vf_instance_t *vf;
int i;
if (vf_settings) {
// We want to add them in the 'right order'
for (i = 0; vf_settings[i].name; i++)
/* NOP */;
for (i--; i >= 0; i--) {
//printf("Open filter %s\n",vf_settings[i].name);
vf = vf_open_filter(opts, last, vf_settings[i].name,
vf_settings[i].attribs);
if (vf)
last = vf;
}
}
return last;
}
//============================================================================
void vf_uninit_filter(vf_instance_t *vf)
{
if (vf->uninit)
vf->uninit(vf);
free_mp_image(vf->imgctx.static_images[0]);
free_mp_image(vf->imgctx.static_images[1]);
free_mp_image(vf->imgctx.temp_images[0]);
free_mp_image(vf->imgctx.export_images[0]);
for (int i = 0; i < NUM_NUMBERED_MPI; i++)
free_mp_image(vf->imgctx.numbered_images[i]);
free(vf);
}
void vf_uninit_filter_chain(vf_instance_t *vf)
{
while (vf) {
vf_instance_t *next = vf->next;
vf_uninit_filter(vf);
vf = next;
}
}
void vf_detc_init_pts_buf(struct vf_detc_pts_buf *p)
{
p->inpts_prev = MP_NOPTS_VALUE;
p->outpts_prev = MP_NOPTS_VALUE;
p->lastdelta = 0;
}
static double vf_detc_adjust_pts_internal(struct vf_detc_pts_buf *p,
double pts, bool reset_pattern,
bool skip_frame, double delta,
double boundfactor_minus,
double increasefactor,
double boundfactor_plus)
{
double newpts;
if (pts == MP_NOPTS_VALUE)
return pts;
if (delta <= 0) {
if (p->inpts_prev == MP_NOPTS_VALUE)
delta = 0;
else if (pts == p->inpts_prev)
delta = p->lastdelta;
else
delta = pts - p->inpts_prev;
}
p->inpts_prev = pts;
p->lastdelta = delta;
if (skip_frame)
return MP_NOPTS_VALUE;
/* detect bogus deltas and then passthru pts (possibly caused by seeking,
* or bad input) */
if (p->outpts_prev == MP_NOPTS_VALUE || reset_pattern || delta <= 0.0 ||
delta >= 0.5)
newpts = pts;
else {
// turn 5 frames into 4
newpts = p->outpts_prev + delta * increasefactor;
// bound to input pts in a sensible way; these numbers come because we
// map frames the following way when ivtc'ing:
// 0/30 -> 0/24 diff=0
// 1/30 -> 1/24 diff=1/120
// 2/30 -> -
// 3/30 -> 2/24 diff=-1/60
// 4/30 -> 3/24 diff=-1/120
if (newpts < pts - delta * boundfactor_minus)
newpts = pts - delta * boundfactor_minus;
if (newpts > pts + delta * boundfactor_plus)
newpts = pts + delta * boundfactor_plus;
if (newpts < p->outpts_prev)
newpts = p->outpts_prev; // damage control
}
p->outpts_prev = newpts;
return newpts;
}
double vf_detc_adjust_pts(struct vf_detc_pts_buf *p, double pts,
bool reset_pattern, bool skip_frame)
{
// standard telecine (see above)
return vf_detc_adjust_pts_internal(p, pts, reset_pattern, skip_frame,
0, 0.5, 1.25, 0.25);
}
double vf_softpulldown_adjust_pts(struct vf_detc_pts_buf *p, double pts,
bool reset_pattern, bool skip_frame,
int last_frame_duration)
{
// for the softpulldown filter we get:
// 0/60 -> 0/30
// 2/60 -> 1/30
// 5/60 -> 2/30
// 7/60 -> 3/30, 4/30
return vf_detc_adjust_pts_internal(p, pts, reset_pattern, skip_frame,
0, 1.0 / last_frame_duration,
2.0 / last_frame_duration,
1.0 / last_frame_duration);
}
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