Ejemplos de set_tta_info en C++ (Cpp)

Ejemplo n.º 1

Archivo: tta.c Proyecto: 4nykey/rockbox

/* this is called for each file to process */
enum codec_status codec_run(void)
{
    tta_info info;
    unsigned int decodedsamples;
    int endofstream;
    int new_pos = 0;
    int sample_count;
    intptr_t param;
  
    if (codec_init())
    {
        DEBUGF("codec_init() error\n");
        return CODEC_ERROR;
    }

    ci->seek_buffer(0);

    if (set_tta_info(&info) < 0 || player_init(&info) < 0)
        return CODEC_ERROR;

    codec_set_replaygain(ci->id3);

    ci->configure(DSP_SWITCH_FREQUENCY, ci->id3->frequency);
    if (info.NCH == 2) {
        ci->configure(DSP_SET_STEREO_MODE, STEREO_INTERLEAVED);
    } else if (info.NCH == 1) {
        ci->configure(DSP_SET_STEREO_MODE, STEREO_MONO);
    } else {
        DEBUGF("CODEC_ERROR: more than 2 channels\n");
        player_stop();
        return CODEC_ERROR;
    }

    /* The main decoder loop */
    decodedsamples = 0;
    endofstream = 0;

    if (ci->id3->offset > 0)
    {
        /* Need to save offset for later use (cleared indirectly by advance_buffer) */
        new_pos = set_position(ci->id3->offset, TTA_SEEK_POS);
        if (new_pos >= 0)
            decodedsamples = new_pos;
    }

    ci->set_elapsed((uint64_t)info.LENGTH * 1000 * decodedsamples / info.DATALENGTH);

    while (!endofstream)
    {
        enum codec_command_action action = ci->get_command(&param);

        if (action == CODEC_ACTION_HALT)
            break;

        if (action == CODEC_ACTION_SEEK_TIME)
        {
            new_pos = set_position(param / SEEK_STEP, TTA_SEEK_TIME);
            if (new_pos >= 0)
            {
                decodedsamples = new_pos;
            }

            ci->set_elapsed((uint64_t)info.LENGTH * 1000 * decodedsamples / info.DATALENGTH);
            ci->seek_complete();
        }

        sample_count = get_samples(samples);
        if (sample_count < 0)
            break;
 
        ci->pcmbuf_insert(samples, NULL, sample_count);
        decodedsamples += sample_count;
        if (decodedsamples >= info.DATALENGTH)
            endofstream = 1;
        ci->set_elapsed((uint64_t)info.LENGTH * 1000 * decodedsamples / info.DATALENGTH);
    }

    player_stop();
    return CODEC_OK;
}

Ejemplo n.º 2

/* this is the codec entry point */
enum codec_status codec_main(void)
{
    tta_info info;
    int status;
    unsigned int decodedsamples;
    int endofstream;
    int new_pos = 0;
    int sample_count;

    /* Generic codec initialisation */
    ci->configure(DSP_SET_SAMPLE_DEPTH, TTA_OUTPUT_DEPTH - 1);
  
next_track:
    status = CODEC_OK;

    if (codec_init())
    {
        DEBUGF("codec_init() error\n");
        status = CODEC_ERROR;
        goto exit;
    }

    if (codec_wait_taginfo() != 0)
        goto done;

    if (set_tta_info(&info) < 0 || player_init(&info) < 0)
    {
        status = CODEC_ERROR;
        goto exit;
    }

    codec_set_replaygain(ci->id3);

    ci->configure(DSP_SWITCH_FREQUENCY, ci->id3->frequency);
    if (info.NCH == 2) {
        ci->configure(DSP_SET_STEREO_MODE, STEREO_INTERLEAVED);
    } else if (info.NCH == 1) {
        ci->configure(DSP_SET_STEREO_MODE, STEREO_MONO);
    } else {
        DEBUGF("CODEC_ERROR: more than 2 channels\n");
        status = CODEC_ERROR;
        goto done;
    }

    /* The main decoder loop */
    decodedsamples = 0;
    endofstream = 0;

    if (ci->id3->offset > 0)
    {
        /* Need to save offset for later use (cleared indirectly by advance_buffer) */
        new_pos = set_position(ci->id3->offset, TTA_SEEK_POS);
        if (new_pos >= 0)
            decodedsamples = new_pos;
        ci->seek_complete();
    }

    while (!endofstream)
    {
        ci->yield();
        if (ci->stop_codec || ci->new_track)
            break;

        if (ci->seek_time)
        {
            new_pos = set_position(ci->seek_time / SEEK_STEP, TTA_SEEK_TIME);
            if (new_pos >= 0)
            {
                decodedsamples = new_pos;
                ci->seek_complete();
            }
        }

        sample_count = get_samples(samples);
        if (sample_count < 0)
        {
            status = CODEC_ERROR;
            break;
        }
        ci->pcmbuf_insert(samples, NULL, sample_count);
        decodedsamples += sample_count;
        if (decodedsamples >= info.DATALENGTH)
            endofstream = 1;
        ci->set_elapsed((uint64_t)info.LENGTH * 1000 * decodedsamples / info.DATALENGTH);
    }

done:
    player_stop();
    if (ci->request_next_track())
        goto next_track;

exit:
    return status;
}