/** @internal @This checks if the pump may be allocated.
*
* @param upipe description structure of the pipe
* @param flow_format amended flow format
* @return an error code
*/
static int upipe_qt_html_check(struct upipe *upipe, struct uref *flow_format)
{
struct upipe_qt_html *upipe_qt_html = upipe_qt_html_from_upipe(upipe);
if (flow_format != NULL)
upipe_qt_html_store_flow_def(upipe, flow_format);
upipe_qt_html_check_upump_mgr(upipe);
if (upipe_qt_html->upump_mgr == NULL)
return UBASE_ERR_NONE;
if (upipe_qt_html->uref_mgr == NULL) {
upipe_qt_html_require_uref_mgr(upipe);
return UBASE_ERR_NONE;
}
if (upipe_qt_html->ubuf_mgr == NULL) {
struct uref *flow_format =
uref_pic_flow_alloc_def(upipe_qt_html->uref_mgr, 1);
uref_pic_flow_set_macropixel(flow_format, 1);
uref_pic_flow_add_plane(flow_format, 1, 1, 4, "b8g8r8a8");
uref_pic_flow_set_hsize(flow_format, upipe_qt_html->H);
uref_pic_flow_set_vsize(flow_format, upipe_qt_html->V);
if (unlikely(flow_format == NULL)) {
upipe_throw_fatal(upipe, UBASE_ERR_ALLOC);
return UBASE_ERR_ALLOC;
}
upipe_qt_html_require_ubuf_mgr(upipe, flow_format);
return UBASE_ERR_NONE;
}
if (upipe_qt_html->upump == NULL) {
upipe_qt_html_wait_upumpstart(upipe, 0, start);
}
return UBASE_ERR_NONE;
}
/** @internal @This outputs video frames
*
* @param upipe description structure of the pipe
* @param frame AVFrame structure
* @param upump upump structure
*/
static void upipe_avcdec_output_frame(struct upipe *upipe, AVFrame *frame,
struct upump *upump)
{
struct ubuf *ubuf;
struct upipe_avcdec *upipe_avcdec = upipe_avcdec_from_upipe(upipe);
const struct upipe_av_plane *planes = upipe_avcdec->pixfmt->planes;
struct uref *uref = uref_dup(frame->opaque);
uint8_t *data, *src, hsub, vsub;
const char *chroma = NULL;
size_t sstride, dstride;
int i, j;
struct urational aspect;
/* if uref has no attached ubuf (ie DR not supported) */
if (unlikely(!uref->ubuf)) {
ubuf = ubuf_pic_alloc(upipe_avcdec->ubuf_mgr, frame->width, frame->height);
if (!ubuf) {
upipe_throw_aerror(upipe);
return;
}
/* iterate through planes and copy data */
i = j = 0;
for (i=0; i < 4 && (chroma = planes[i].chroma); i++) {
ubuf_pic_plane_write(ubuf, chroma, 0, 0, -1, -1, &data);
ubuf_pic_plane_size(ubuf, chroma, &dstride, &hsub, &vsub, NULL);
src = frame->data[i];
sstride = frame->linesize[i];
for (j = 0; j < frame->height/vsub; j++) {
memcpy(data, src, frame->width/hsub);
data += dstride;
src += sstride;
}
ubuf_pic_plane_unmap(ubuf, chroma, 0, 0, -1, -1);
}
uref_attach_ubuf(uref, ubuf);
}
/* set aspect-ratio */
aspect.den = 0; /* null denom is invalid */
if (upipe_avcdec->context->sample_aspect_ratio.den) {
aspect.num = upipe_avcdec->context->sample_aspect_ratio.num;
aspect.den = upipe_avcdec->context->sample_aspect_ratio.den;
} else if (frame->sample_aspect_ratio.den) {
aspect.num = frame->sample_aspect_ratio.num;
aspect.den = frame->sample_aspect_ratio.den;
}
if (aspect.den) {
urational_simplify(&aspect);
uref_pic_set_aspect(uref, aspect);
}
if (!upipe_avcdec->output_flow) {
struct uref *outflow = uref_pic_flow_alloc_def(upipe_avcdec->uref_mgr, 1);
upipe_avcdec_store_flow_def(upipe, outflow);
}
/* index rap attribute */
upipe_avcdec_set_index_rap(upipe, uref);
upipe_avcdec_output(upipe, uref, upump);
}