PeerStreamer

/*

 * Copyright (C) 2002 Michael Niedermayer <michaelni@gmx.at>

 *

 * 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 <inttypes.h>

#include <assert.h>

#include "mp_msg.h"

#include "img_format.h"

#include "mp_image.h"

#include "vf.h"

//===========================================================================//

static void get_image(struct vf_instance *vf, mp_image_t *mpi){

    mp_image_t *dmpi= vf_get_image(vf->next, mpi->imgfmt,

        mpi->type, mpi->flags, mpi->w, mpi->h);

    mpi->planes[0]=dmpi->planes[0];

    mpi->planes[1]=dmpi->planes[2];

    mpi->planes[2]=dmpi->planes[1];

    mpi->stride[0]=dmpi->stride[0];

    mpi->stride[1]=dmpi->stride[2];

    mpi->stride[2]=dmpi->stride[1];

    mpi->width=dmpi->width;

    mpi->flags|=MP_IMGFLAG_DIRECT;

    mpi->priv=(void*)dmpi;

}

static int put_image(struct vf_instance *vf, mp_image_t *mpi, double pts){

    mp_image_t *dmpi;

    if(mpi->flags&MP_IMGFLAG_DIRECT){

        dmpi=(mp_image_t*)mpi->priv;

    } else {

        dmpi=vf_get_image(vf->next, mpi->imgfmt, MP_IMGTYPE_EXPORT, 0, mpi->w, mpi->h);

        assert(mpi->flags&MP_IMGFLAG_PLANAR);

        dmpi->planes[0]=mpi->planes[0];

        dmpi->planes[1]=mpi->planes[2];

        dmpi->planes[2]=mpi->planes[1];

        dmpi->stride[0]=mpi->stride[0];

        dmpi->stride[1]=mpi->stride[2];

        dmpi->stride[2]=mpi->stride[1];

        dmpi->width=mpi->width;

    }

    vf_clone_mpi_attributes(dmpi, mpi);

    return vf_next_put_image(vf,dmpi, pts);

}

//===========================================================================//

static int query_format(struct vf_instance *vf, unsigned int fmt){

        switch(fmt)

        {

        case IMGFMT_YV12:

        case IMGFMT_I420:

        case IMGFMT_IYUV:

        case IMGFMT_YVU9:

        case IMGFMT_444P:

        case IMGFMT_422P:

        case IMGFMT_411P:

                return vf_next_query_format(vf, fmt);

        }

        return 0;

}

static int vf_open(vf_instance_t *vf, char *args){

    vf->put_image=put_image;

    vf->get_image=get_image;

    vf->query_format=query_format;

    return 1;

}

const vf_info_t vf_info_swapuv = {

    "UV swapper",

    "swapuv",

    "Michael Niedermayer",

    "",

    vf_open,

    NULL

};

//===========================================================================//