Ejemplos de r3d_read_red1 en C++ (Cpp)

Ejemplo n.º 1

Archivo: r3d.c Proyecto: Rodeo314/tim-libav

static int r3d_read_header(AVFormatContext *s)
{
    R3DContext *r3d = s->priv_data;
    Atom atom;
    int ret;

    if (read_atom(s, &atom) < 0) {
        av_log(s, AV_LOG_ERROR, "error reading atom\n");
        return -1;
    }
    if (atom.tag == MKTAG('R','E','D','1')) {
        if ((ret = r3d_read_red1(s)) < 0) {
            av_log(s, AV_LOG_ERROR, "error parsing 'red1' atom\n");
            return ret;
        }
    } else {
        av_log(s, AV_LOG_ERROR, "could not find 'red1' atom\n");
        return -1;
    }

    /* we cannot create the audio stream now because we do not know the
     * sample rate */
    if (r3d->audio_channels)
        s->ctx_flags |= AVFMTCTX_NOHEADER;

    s->internal->data_offset = avio_tell(s->pb);
    av_log(s, AV_LOG_TRACE, "data offset %#"PRIx64"\n", s->internal->data_offset);
    if (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL))
        return 0;
    // find REOB/REOF/REOS to load index
    avio_seek(s->pb, avio_size(s->pb)-48-8, SEEK_SET);
    if (read_atom(s, &atom) < 0)
        av_log(s, AV_LOG_ERROR, "error reading end atom\n");

    if (atom.tag != MKTAG('R','E','O','B') &&
        atom.tag != MKTAG('R','E','O','F') &&
        atom.tag != MKTAG('R','E','O','S'))
        goto out;

    r3d_read_reos(s);

    if (r3d->rdvo_offset) {
        avio_seek(s->pb, r3d->rdvo_offset, SEEK_SET);
        if (read_atom(s, &atom) < 0)
            av_log(s, AV_LOG_ERROR, "error reading 'rdvo' atom\n");
        if (atom.tag == MKTAG('R','D','V','O')) {
            if (r3d_read_rdvo(s, &atom) < 0)
                av_log(s, AV_LOG_ERROR, "error parsing 'rdvo' atom\n");
        }
    }

 out:
    avio_seek(s->pb, s->internal->data_offset, SEEK_SET);
    return 0;
}

Ejemplo n.º 2

Archivo: r3d.c Proyecto: andoma/libav

static int r3d_read_header(AVFormatContext *s, AVFormatParameters *ap)
{
    R3DContext *r3d = s->priv_data;
    Atom atom;
    int ret;

    if (read_atom(s, &atom) < 0) {
        av_log(s, AV_LOG_ERROR, "error reading atom\n");
        return -1;
    }
    if (atom.tag == MKTAG('R','E','D','1')) {
        if ((ret = r3d_read_red1(s)) < 0) {
            av_log(s, AV_LOG_ERROR, "error parsing 'red1' atom\n");
            return ret;
        }
    } else {
        av_log(s, AV_LOG_ERROR, "could not find 'red1' atom\n");
        return -1;
    }

    s->data_offset = avio_tell(s->pb);
    av_dlog(s, "data offset %#llx\n", s->data_offset);
    if (!s->pb->seekable)
        return 0;
    // find REOB/REOF/REOS to load index
    avio_seek(s->pb, avio_size(s->pb)-48-8, SEEK_SET);
    if (read_atom(s, &atom) < 0)
        av_log(s, AV_LOG_ERROR, "error reading end atom\n");

    if (atom.tag != MKTAG('R','E','O','B') &&
        atom.tag != MKTAG('R','E','O','F') &&
        atom.tag != MKTAG('R','E','O','S'))
        goto out;

    r3d_read_reos(s);

    if (r3d->rdvo_offset) {
        avio_seek(s->pb, r3d->rdvo_offset, SEEK_SET);
        if (read_atom(s, &atom) < 0)
            av_log(s, AV_LOG_ERROR, "error reading 'rdvo' atom\n");
        if (atom.tag == MKTAG('R','D','V','O')) {
            if (r3d_read_rdvo(s, &atom) < 0)
                av_log(s, AV_LOG_ERROR, "error parsing 'rdvo' atom\n");
        }
    }

 out:
    avio_seek(s->pb, s->data_offset, SEEK_SET);
    return 0;
}