static GstFlowReturn
gst_vaapidecode_step(GstVaapiDecode *decode)
{
GstVaapiSurfaceProxy *proxy;
GstVaapiDecoderStatus status;
GstBuffer *buffer;
GstFlowReturn ret;
GstClockTime timestamp;
gint64 end_time;
for (;;) {
end_time = decode->render_time_base;
if (!end_time)
end_time = g_get_monotonic_time();
end_time += GST_TIME_AS_USECONDS(decode->last_buffer_time);
end_time += G_TIME_SPAN_SECOND;
proxy = gst_vaapi_decoder_get_surface(decode->decoder, &status);
if (!proxy) {
if (status == GST_VAAPI_DECODER_STATUS_ERROR_NO_SURFACE) {
gboolean was_signalled;
g_mutex_lock(decode->decoder_mutex);
was_signalled = g_cond_wait_until(
decode->decoder_ready,
decode->decoder_mutex,
end_time
);
g_mutex_unlock(decode->decoder_mutex);
if (was_signalled)
continue;
goto error_decode_timeout;
}
if (status != GST_VAAPI_DECODER_STATUS_ERROR_NO_DATA)
goto error_decode;
/* More data is needed */
break;
}
g_object_weak_ref(
G_OBJECT(proxy),
(GWeakNotify)gst_vaapidecode_release,
decode
);
buffer = gst_vaapi_video_buffer_new(decode->display);
if (!buffer)
goto error_create_buffer;
timestamp = GST_VAAPI_SURFACE_PROXY_TIMESTAMP(proxy);
if (!decode->render_time_base)
decode->render_time_base = g_get_monotonic_time();
decode->last_buffer_time = timestamp;
GST_BUFFER_TIMESTAMP(buffer) = timestamp;
GST_BUFFER_DURATION(buffer) = GST_VAAPI_SURFACE_PROXY_DURATION(proxy);
gst_buffer_set_caps(buffer, GST_PAD_CAPS(decode->srcpad));
if (GST_VAAPI_SURFACE_PROXY_TFF(proxy))
GST_BUFFER_FLAG_SET(buffer, GST_VIDEO_BUFFER_TFF);
gst_vaapi_video_buffer_set_surface_proxy(
GST_VAAPI_VIDEO_BUFFER(buffer),
proxy
);
ret = gst_pad_push(decode->srcpad, buffer);
if (ret != GST_FLOW_OK)
goto error_commit_buffer;
g_object_unref(proxy);
}
return GST_FLOW_OK;
/* ERRORS */
error_decode_timeout:
{
GST_DEBUG("decode timeout. Decoder required a VA surface but none "
"got available within one second");
return GST_FLOW_UNEXPECTED;
}
error_decode:
{
GST_DEBUG("decode error %d", status);
switch (status) {
case GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CODEC:
case GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_PROFILE:
case GST_VAAPI_DECODER_STATUS_ERROR_UNSUPPORTED_CHROMA_FORMAT:
ret = GST_FLOW_NOT_SUPPORTED;
break;
default:
ret = GST_FLOW_UNEXPECTED;
break;
}
return ret;
}
error_create_buffer:
{
const GstVaapiID surface_id =
gst_vaapi_surface_get_id(GST_VAAPI_SURFACE_PROXY_SURFACE(proxy));
GST_DEBUG("video sink failed to create video buffer for proxy'ed "
"surface %" GST_VAAPI_ID_FORMAT " (error %d)",
GST_VAAPI_ID_ARGS(surface_id), ret);
g_object_unref(proxy);
return GST_FLOW_UNEXPECTED;
}
error_commit_buffer:
{
GST_DEBUG("video sink rejected the video buffer (error %d)", ret);
g_object_unref(proxy);
return GST_FLOW_UNEXPECTED;
}
}
static GstFlowReturn
gst_vaapi_video_buffer_pool_alloc_buffer (GstBufferPool * pool,
GstBuffer ** out_buffer_ptr, GstBufferPoolAcquireParams * params)
{
GstVaapiVideoBufferPoolPrivate *const priv =
GST_VAAPI_VIDEO_BUFFER_POOL (pool)->priv;
GstVaapiVideoBufferPoolAcquireParams *const priv_params =
(GstVaapiVideoBufferPoolAcquireParams *) params;
GstVaapiVideoMeta *meta;
GstMemory *mem;
GstBuffer *buffer;
const gboolean alloc_vaapi_video_meta = !params ||
!(params->flags & GST_VAAPI_VIDEO_BUFFER_POOL_ACQUIRE_FLAG_NO_ALLOC);
if (!priv->allocator)
goto error_no_allocator;
if (alloc_vaapi_video_meta) {
meta = gst_vaapi_video_meta_new (priv->display);
if (!meta)
goto error_create_meta;
buffer = gst_vaapi_video_buffer_new (meta);
} else {
meta = NULL;
buffer = gst_vaapi_video_buffer_new_empty ();
}
if (!buffer)
goto error_create_buffer;
if (priv_params && priv_params->proxy)
gst_vaapi_video_meta_set_surface_proxy (meta, priv_params->proxy);
if (priv->use_dmabuf_memory)
mem = gst_vaapi_dmabuf_memory_new (priv->allocator, meta);
else
mem = gst_vaapi_video_memory_new (priv->allocator, meta);
if (!mem)
goto error_create_memory;
gst_vaapi_video_meta_replace (&meta, NULL);
gst_buffer_append_memory (buffer, mem);
if (priv->options & GST_VAAPI_VIDEO_BUFFER_POOL_OPTION_VIDEO_META) {
GstVideoInfo *const vip = &priv->vmeta_vinfo;
GstVideoMeta *vmeta;
vmeta = gst_buffer_add_video_meta_full (buffer, 0,
GST_VIDEO_INFO_FORMAT (vip), GST_VIDEO_INFO_WIDTH (vip),
GST_VIDEO_INFO_HEIGHT (vip), GST_VIDEO_INFO_N_PLANES (vip),
&GST_VIDEO_INFO_PLANE_OFFSET (vip, 0),
&GST_VIDEO_INFO_PLANE_STRIDE (vip, 0));
if (GST_VAAPI_IS_VIDEO_MEMORY (mem)) {
vmeta->map = gst_video_meta_map_vaapi_memory;
vmeta->unmap = gst_video_meta_unmap_vaapi_memory;
}
}
#if (USE_GLX || USE_EGL)
if (priv->options & GST_VAAPI_VIDEO_BUFFER_POOL_OPTION_GL_TEXTURE_UPLOAD)
gst_buffer_add_texture_upload_meta (buffer);
#endif
*out_buffer_ptr = buffer;
return GST_FLOW_OK;
/* ERRORS */
error_no_allocator:
{
GST_ERROR_OBJECT (pool, "no GstAllocator in buffer pool");
return GST_FLOW_ERROR;
}
error_create_meta:
{
GST_ERROR_OBJECT (pool, "failed to allocate vaapi video meta");
return GST_FLOW_ERROR;
}
error_create_buffer:
{
GST_ERROR_OBJECT (pool, "failed to create video buffer");
gst_vaapi_video_meta_unref (meta);
return GST_FLOW_ERROR;
}
error_create_memory:
{
GST_ERROR_OBJECT (pool, "failed to create video memory");
gst_buffer_unref (buffer);
gst_vaapi_video_meta_unref (meta);
return GST_FLOW_ERROR;
}
}
