/*

 * This file is part of mpv.

 *

 * mpv is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * mpv 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 Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with mpv.  If not, see <http://www.gnu.org/licenses/>.

 */

#include <libavutil/channel_layout.h>

#include "chmap.h"

#include "chmap_avchannel.h"

bool mp_chmap_from_av_layout(struct mp_chmap *dst, const AVChannelLayout *src)

{

    *dst = (struct mp_chmap) {0};

    switch (src->order) {

    case AV_CHANNEL_ORDER_UNSPEC:

        mp_chmap_from_channels(dst, src->nb_channels);

        return dst->num == src->nb_channels;

    case AV_CHANNEL_ORDER_NATIVE:

        mp_chmap_from_lavc(dst, src->u.mask);

        return dst->num == src->nb_channels;

    default:

        // TODO: handle custom layouts

        return false;

    }

}

void mp_chmap_to_av_layout(AVChannelLayout *dst, const struct mp_chmap *src)

{

    *dst = (AVChannelLayout){

        .order = AV_CHANNEL_ORDER_UNSPEC,

        .nb_channels = src->num,

    };

    // TODO: handle custom layouts

    if (!mp_chmap_is_unknown(src)) {

        av_channel_layout_from_mask(dst, mp_chmap_to_lavc(src));

    }

}