/*

 * This file is part of FFmpeg.

 *

 * FFmpeg 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.

 *

 * FFmpeg 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 FFmpeg; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

 */

/**

 * @file

 * G723_1 audio parser

 */

#include "parser.h"

#include "g723_1.h"

#include "parser_internal.h"

typedef struct G723_1ParseContext {

    ParseContext pc;

} G723_1ParseContext;

static int g723_1_parse(AVCodecParserContext *s1, AVCodecContext *avctx,

                        const uint8_t **poutbuf, int *poutbuf_size,

                        const uint8_t *buf, int buf_size)

{

    G723_1ParseContext *s = s1->priv_data;

    ParseContext *pc = &s->pc;

    int next = END_NOT_FOUND;

    if (buf_size > 0)

        next = frame_size[buf[0] & 3] * FFMAX(1, avctx->ch_layout.nb_channels);

    if (ff_combine_frame(pc, next, &buf, &buf_size) < 0 || !buf_size) {

        *poutbuf      = NULL;

        *poutbuf_size = 0;

        return buf_size;

    }

    s1->duration = 240;

    *poutbuf      = buf;

    *poutbuf_size = buf_size;

    return next;

}

const FFCodecParser ff_g723_1_parser = {

    PARSER_CODEC_LIST(AV_CODEC_ID_G723_1),

    .priv_data_size = sizeof(G723_1ParseContext),

    .parse          = g723_1_parse,

    .close          = ff_parse_close,

};