flac_header (AVFormatContext * s, int idx)

{

    struct ogg *ogg = s->priv_data;

    struct ogg_stream *os = ogg->streams + idx;

    AVStream *st = s->streams[idx];

    GetBitContext gb;

    FLACStreaminfo si;

    int mdt;



    if (os->buf[os->pstart] == 0xff)

        return 0;



    init_get_bits(&gb, os->buf + os->pstart, os->psize*8);

    skip_bits1(&gb); /* metadata_last */

    mdt = get_bits(&gb, 7);



    if (mdt == OGG_FLAC_METADATA_TYPE_STREAMINFO) {

        uint8_t *streaminfo_start = os->buf + os->pstart + 5 + 4 + 4 + 4;

        skip_bits_long(&gb, 4*8); /* "FLAC" */

        if(get_bits(&gb, 8) != 1) /* unsupported major version */

            return -1;

        skip_bits_long(&gb, 8 + 16); /* minor version + header count */

        skip_bits_long(&gb, 4*8); /* "fLaC" */



        /* METADATA_BLOCK_HEADER */

        if (get_bits_long(&gb, 32) != FLAC_STREAMINFO_SIZE)

            return -1;



        avpriv_flac_parse_streaminfo(st->codec, &si, streaminfo_start);



        st->codec->codec_type = AVMEDIA_TYPE_AUDIO;

        st->codec->codec_id = AV_CODEC_ID_FLAC;

        st->need_parsing = AVSTREAM_PARSE_HEADERS;



        ff_alloc_extradata(st->codec, FLAC_STREAMINFO_SIZE);

        memcpy(st->codec->extradata, streaminfo_start, st->codec->extradata_size);



        avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);

    } else if (mdt == FLAC_METADATA_TYPE_VORBIS_COMMENT) {

        ff_vorbis_comment (s, &st->metadata, os->buf + os->pstart + 4, os->psize - 4);

    }



    return 1;

}

flac_header (AVFormatContext * s, int idx)

{

    struct ogg *ogg = s->priv_data;

    struct ogg_stream *os = ogg->streams + idx;

    AVStream *st = s->streams[idx];

    GetBitContext gb;

    FLACStreaminfo si;

    int mdt;



    if (os->buf[os->pstart] == 0xff)

        return 0;



    init_get_bits(&gb, os->buf + os->pstart, os->psize*8);

    skip_bits1(&gb); 

    mdt = get_bits(&gb, 7);



    if (mdt == OGG_FLAC_METADATA_TYPE_STREAMINFO) {

        uint8_t *streaminfo_start = os->buf + os->pstart + 5 + 4 + 4 + 4;

        skip_bits_long(&gb, 4*8); 

        if(get_bits(&gb, 8) != 1) 

            return -1;

        skip_bits_long(&gb, 8 + 16); 

        skip_bits_long(&gb, 4*8); 



        

        if (get_bits_long(&gb, 32) != FLAC_STREAMINFO_SIZE)

            return -1;



        avpriv_flac_parse_streaminfo(st->codec, &si, streaminfo_start);



        st->codec->codec_type = AVMEDIA_TYPE_AUDIO;

        st->codec->codec_id = AV_CODEC_ID_FLAC;

        st->need_parsing = AVSTREAM_PARSE_HEADERS;



        ff_alloc_extradata(st->codec, FLAC_STREAMINFO_SIZE);

        memcpy(st->codec->extradata, streaminfo_start, st->codec->extradata_size);



        avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);

    } else if (mdt == FLAC_METADATA_TYPE_VORBIS_COMMENT) {

        ff_vorbis_comment (s, &st->metadata, os->buf + os->pstart + 4, os->psize - 4);

    }



    return 1;

}

FUNC_0 (AVFormatContext * VAR_0, int VAR_1)

{

    struct VAR_2 *VAR_2 = VAR_0->priv_data;

    struct ogg_stream *VAR_3 = VAR_2->streams + VAR_1;

    AVStream *st = VAR_0->streams[VAR_1];

    GetBitContext gb;

    FLACStreaminfo si;

    int VAR_4;



    if (VAR_3->buf[VAR_3->pstart] == 0xff)

        return 0;



    init_get_bits(&gb, VAR_3->buf + VAR_3->pstart, VAR_3->psize*8);

    skip_bits1(&gb); 

    VAR_4 = get_bits(&gb, 7);



    if (VAR_4 == OGG_FLAC_METADATA_TYPE_STREAMINFO) {

        uint8_t *streaminfo_start = VAR_3->buf + VAR_3->pstart + 5 + 4 + 4 + 4;

        skip_bits_long(&gb, 4*8); 

        if(get_bits(&gb, 8) != 1) 

            return -1;

        skip_bits_long(&gb, 8 + 16); 

        skip_bits_long(&gb, 4*8); 



        

        if (get_bits_long(&gb, 32) != FLAC_STREAMINFO_SIZE)

            return -1;



        avpriv_flac_parse_streaminfo(st->codec, &si, streaminfo_start);



        st->codec->codec_type = AVMEDIA_TYPE_AUDIO;

        st->codec->codec_id = AV_CODEC_ID_FLAC;

        st->need_parsing = AVSTREAM_PARSE_HEADERS;



        ff_alloc_extradata(st->codec, FLAC_STREAMINFO_SIZE);

        memcpy(st->codec->extradata, streaminfo_start, st->codec->extradata_size);



        avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);

    } else if (VAR_4 == FLAC_METADATA_TYPE_VORBIS_COMMENT) {

        ff_vorbis_comment (VAR_0, &st->metadata, VAR_3->buf + VAR_3->pstart + 4, VAR_3->psize - 4);

    }



    return 1;

}

FUNC_0 (AVFormatContext * VAR_0, int VAR_1)
{ struct VAR_2 *VAR_2 = VAR_0->priv_data; struct ogg_stream *VAR_3 = VAR_2->streams + VAR_1; AVStream *st = VAR_0->streams[VAR_1]; GetBitContext gb; FLACStreaminfo si; int VAR_4; if (VAR_3->buf[VAR_3->pstart] == 0xff)
return 0; init_get_bits(&gb, VAR_3->buf + VAR_3->pstart, VAR_3->psize*8); skip_bits1(&gb); VAR_4 = get_bits(&gb, 7); if (VAR_4 == OGG_FLAC_METADATA_TYPE_STREAMINFO) { uint8_t *streaminfo_start = VAR_3->buf + VAR_3->pstart + 5 + 4 + 4 + 4; skip_bits_long(&gb, 4*8); if(get_bits(&gb, 8) != 1)
return -1; skip_bits_long(&gb, 8 + 16); skip_bits_long(&gb, 4*8); if (get_bits_long(&gb, 32) != FLAC_STREAMINFO_SIZE)
return -1; avpriv_flac_parse_streaminfo(st->codec, &si, streaminfo_start); st->codec->codec_type = AVMEDIA_TYPE_AUDIO; st->codec->codec_id = AV_CODEC_ID_FLAC; st->need_parsing = AVSTREAM_PARSE_HEADERS; ff_alloc_extradata(st->codec, FLAC_STREAMINFO_SIZE); memcpy(st->codec->extradata, streaminfo_start, st->codec->extradata_size); avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate); } else if (VAR_4 == FLAC_METADATA_TYPE_VORBIS_COMMENT) { ff_vorbis_comment (VAR_0, &st->metadata, VAR_3->buf + VAR_3->pstart + 4, VAR_3->psize - 4); } return 1; }