Function nal_encode

libhb/encx265.c:599–684

}

static hb_buffer_t* nal_encode(hb_work_object_t *w,
                               x265_picture *pic_out,
                               x265_nal *nal, uint32_t nnal)
{
    hb_work_private_t *pv = w->private_data;
    hb_buffer_t *buf      = NULL;
    int payload_size      = 0;

    if (nnal <= 0)
    {
        return NULL;
    }

    for (int i = 0; i < nnal; i++)
    {
        payload_size += nal[i].sizeBytes;
    }

    buf = hb_buffer_init(payload_size);
    if (buf == NULL)
    {
        return NULL;
    }

    buf->s.flags = 0;
    buf->size = 0;

    // copy the bitstream data
    for (int i = 0; i < nnal; i++)
    {
        if (HB_HEVC_NALU_KEYFRAME(nal[i].type))
        {
            buf->s.flags |= HB_FLAG_FRAMETYPE_REF;
            buf->s.flags |= HB_FLAG_FRAMETYPE_KEY;
        }
        memcpy(buf->data + buf->size, nal[i].payload, nal[i].sizeBytes);
        buf->size += nal[i].sizeBytes;
    }

    // use the pts to get the original frame's duration.
    buf->s.duration     = get_frame_duration(pv, pic_out->pts);
    buf->s.stop         = pic_out->pts + buf->s.duration;
    buf->s.start        = pic_out->pts;
    buf->s.renderOffset = pic_out->dts;
    if (*w->init_delay == 0 && pic_out->dts < 0)
    {
        *w->init_delay -= pic_out->dts;
    }

    switch (pic_out->sliceType)
    {
        case X265_TYPE_IDR:
            buf->s.flags |= HB_FLAG_FRAMETYPE_REF;
            buf->s.flags |= HB_FLAG_FRAMETYPE_KEY;
            buf->s.frametype = HB_FRAME_IDR;
            break;
        case X265_TYPE_P:
            buf->s.flags |= HB_FLAG_FRAMETYPE_REF;