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vaapidecode: generate system allocated buffers

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Generate system allocated output buffers when downstream doesn't
support GstVideoMeta.

The VA buffer content is copied to the new output buffer, and it
replaces the VA buffer.

https://bugzilla.gnome.org/show_bug.cgi?id=785054
This commit is contained in:
Víctor Manuel Jáquez Leal 2018-02-17 18:32:11 +01:00
parent 188434f251
commit 9827ab0f3f
1 changed files with 39 additions and 0 deletions
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39
gst/vaapi/gstvaapidecode.c
View file

@ -593,9 +593,32 @@ gst_vaapidecode_push_decoded_frame (GstVideoDecoder * vdec,
if (decode->has_texture_upload_meta)
gst_buffer_ensure_texture_upload_meta (out_frame->output_buffer);
#endif
/* Generate a system allocated output buffer if downstream doesn't
* support GstVideoMeta */
if (GST_VAAPI_PLUGIN_BASE_COPY_OUTPUT_FRAME (vdec)) {
GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (vdec);
GstBuffer *sys_buf, *va_buf;
va_buf = out_frame->output_buffer;
sys_buf = gst_buffer_new_allocate (plugin->other_srcpad_allocator,
GST_VIDEO_INFO_SIZE (&plugin->srcpad_info),
&plugin->other_allocator_params);
if (!sys_buf)
goto error_no_sys_buffer;
if (!gst_vaapi_plugin_copy_va_buffer (plugin, va_buf, sys_buf)) {
gst_buffer_unref (sys_buf);
goto error_cannot_copy;
}
gst_buffer_replace (&out_frame->output_buffer, sys_buf);
gst_buffer_unref (sys_buf);
}
}
if (decode->in_segment.rate < 0.0
&& !GST_VAAPI_PLUGIN_BASE_COPY_OUTPUT_FRAME (vdec)
&& !GST_VIDEO_CODEC_FRAME_IS_SYNC_POINT (out_frame)) {
GST_TRACE_OBJECT (decode, "drop frame in reverse playback");
gst_video_decoder_release_frame (GST_VIDEO_DECODER (decode), out_frame);
@ -628,6 +651,22 @@ error_get_meta:
gst_video_decoder_drop_frame (vdec, out_frame);
return GST_FLOW_ERROR;
}
error_no_sys_buffer:
{
GST_ELEMENT_ERROR (vdec, STREAM, FAILED,
("Failed to create system allocated buffer"),
("Failed to create system allocated buffer"));
gst_video_decoder_drop_frame (vdec, out_frame);
return GST_FLOW_ERROR;
}
error_cannot_copy:
{
GST_ELEMENT_ERROR (vdec, STREAM, FAILED,
("Failed to copy system allocated buffer"),
("Failed to copy system allocated buffer"));
gst_video_decoder_drop_frame (vdec, out_frame);
return GST_FLOW_ERROR;
}
error_commit_buffer:
{
GST_INFO_OBJECT (decode, "downstream element rejected the frame (%s [%d])",