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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include "config.h"
#include "mp_msg.h"
#include "help_mp.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "libavcodec/avcodec.h"
extern int avcodec_initialized;
struct vf_priv_s
{
int width, height;
int pix_fmt;
};
/* Support for avcodec's built-in deinterlacer.
* Based on vf_lavc.c
*/
//===========================================================================//
/* Convert mplayer's IMGFMT_* to avcodec's PIX_FMT_* for the supported
* IMGFMT's, and return -1 if the deinterlacer doesn't support
* that format (-1 because 0 is a valid PIX_FMT).
*/
/* The deinterlacer supports planer 4:2:0, 4:2:2, and 4:4:4 YUV */
static int
imgfmt_to_pixfmt (int imgfmt)
{
switch(imgfmt)
{
/* I hope I got all the supported formats */
/* 4:2:0 */
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
return PIX_FMT_YUV420P;
break;
#if 0
/* 4:2:2 */
case IMGFMT_UYVY:
case IMGFMT_UYNV:
case IMGFMT_Y422:
case IMGFMT_YUY2:
case IMGFMT_YUNV:
case IMGFMT_YVYU:
case IMGFMT_Y42T:
case IMGFMT_V422:
case IMGFMT_V655:
return PIX_FMT_YUV422P;
break;
#endif
/* Are there any _planar_ YUV 4:4:4 formats? */
default:
return -1;
}
}
static int
config (struct vf_instance* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt)
{
struct vf_priv_s *priv = vf->priv;
priv->pix_fmt = imgfmt_to_pixfmt(outfmt);
if(priv->pix_fmt == -1)
return 0;
/* The deinterlacer will fail if this is false */
if ((width & 3) != 0 || (height & 3) != 0)
return 0;
/* If we get here, the deinterlacer is guaranteed not to fail */
priv->width = width;
priv->height = height;
return vf_next_config(vf,
width, height,
d_width, d_height,
flags, outfmt);
}
static int
put_image (struct vf_instance* vf, mp_image_t *mpi, double pts)
{
struct vf_priv_s *priv = vf->priv;
mp_image_t* dmpi;
AVPicture pic;
AVPicture lavc_picture;
lavc_picture.data[0] = mpi->planes[0];
lavc_picture.data[1] = mpi->planes[1];
lavc_picture.data[2] = mpi->planes[2];
lavc_picture.linesize[0] = mpi->stride[0];
lavc_picture.linesize[1] = mpi->stride[1];
lavc_picture.linesize[2] = mpi->stride[2];
dmpi = vf_get_image(vf->next, mpi->imgfmt,
MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
priv->width, priv->height);
pic.data[0] = dmpi->planes[0];
pic.data[1] = dmpi->planes[1];
pic.data[2] = dmpi->planes[2];
pic.linesize[0] = dmpi->stride[0];
pic.linesize[1] = dmpi->stride[1];
pic.linesize[2] = dmpi->stride[2];
if (avpicture_deinterlace(&pic, &lavc_picture,
priv->pix_fmt, priv->width, priv->height) < 0)
{
/* This should not happen -- see config() */
return 0;
}
return vf_next_put_image(vf, dmpi, pts);
}
static int
query_format (struct vf_instance* vf, unsigned int fmt)
{
if(imgfmt_to_pixfmt(fmt) == -1)
return 0;
return vf_next_query_format(vf,fmt);
}
static int
open (vf_instance_t *vf, char* args)
{
/* We don't have any args */
(void) args;
vf->config = config;
vf->put_image = put_image;
vf->query_format = query_format;
vf->priv = malloc(sizeof(struct vf_priv_s));
memset(vf->priv,0,sizeof(struct vf_priv_s));
/* This may not technically be necessary just for a deinterlace,
* but it seems like a good idea.
*/
if(!avcodec_initialized)
{
avcodec_init();
avcodec_register_all();
avcodec_initialized=1;
}
return 1;
}
const vf_info_t vf_info_lavcdeint = {
"libavcodec's deinterlacing filter",
"lavcdeint",
"Joe Rabinoff",
"libavcodec's internal deinterlacer, in case you don't like "
"the builtin ones (invoked with -pp or -npp)",
open,
NULL
};
//===========================================================================//
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