Function decavcodecvWork

libhb/decavcodec.c:2155–2305

}

static int decavcodecvWork( hb_work_object_t * w, hb_buffer_t ** buf_in,
                            hb_buffer_t ** buf_out )
{
    hb_work_private_t * pv     = w->private_data;
    hb_buffer_t       * in     = *buf_in;
    int                 result = HB_WORK_OK;

    *buf_out = NULL;

    // libavcodec/mpeg12dec.c requires buffers to be zero padded.
    // If not zero padded, it can get stuck in an infinite loop.
    // It's likely there are other decoders that expect the same.
    if (in->data != NULL)
    {
        memset(in->data + in->size, 0, in->alloc - in->size);
    }
    if (in->palette != NULL)
    {
        pv->palette = in->palette;
        in->palette = NULL;
    }

    /* if we got an empty buffer signaling end-of-stream send it downstream */
    if (in->s.flags & HB_BUF_FLAG_EOF)
    {
        if (pv->context != NULL && pv->context->codec != NULL)
        {
            videoParserFlush(w);
            while (decodeFrame(pv, NULL))
            {
                continue;
            }
        }
        hb_buffer_list_append(&pv->list, hb_buffer_dup(in));
        *buf_out = hb_buffer_list_clear(&pv->list);
        return HB_WORK_DONE;
    }

    /*
     * The following loop is a do..while because we need to handle both
     * data & the flush at the end (signaled by size=0). At the end there's
     * generally a frame in the parser & one or more frames in the decoder
     * (depending on the bframes setting).
     */
    int      pos, len;
    int64_t  pts = in->s.start;
    int64_t  dts = in->s.renderOffset;

    if (in->s.new_chap > 0)
    {
        pv->new_chap = in->s.new_chap;
        pv->chap_scr = in->s.scr_sequence;
        if (in->s.start != AV_NOPTS_VALUE)
        {
            pv->chap_time = in->s.start;
        }
        else
        {