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vaapiencode: merge tags for downstream's info

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Add encoder and codec name and the bitrate into the output for
informational purposes. Some muxers or application use it as
media metadata.

https://bugzilla.gnome.org/show_bug.cgi?id=778781
This commit is contained in:
Víctor Manuel Jáquez Leal 2017-02-16 18:37:59 +01:00
parent a0a2f7bfe8
commit 5905970917
1 changed files with 33 additions and 1 deletions
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34
gst/vaapi/gstvaapiencode.c
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@ -537,6 +537,7 @@ static gboolean
gst_vaapiencode_set_format (GstVideoEncoder * venc, GstVideoCodecState * state)
{
GstVaapiEncode *const encode = GST_VAAPIENCODE_CAST (venc);
gboolean ret;
g_return_val_if_fail (state->caps != NULL, FALSE);
@ -552,8 +553,39 @@ gst_vaapiencode_set_format (GstVideoEncoder * venc, GstVideoCodecState * state)
encode->input_state = gst_video_codec_state_ref (state);
encode->input_state_changed = TRUE;
return gst_pad_start_task (GST_VAAPI_PLUGIN_BASE_SRC_PAD (encode),
ret = gst_pad_start_task (GST_VAAPI_PLUGIN_BASE_SRC_PAD (encode),
(GstTaskFunction) gst_vaapiencode_buffer_loop, encode, NULL);
if (!ret)
return FALSE;
/* Store some tags */
{
GstTagList *tags = gst_tag_list_new_empty ();
const gchar *encoder, *codec;
guint bitrate = 0;
g_object_get (encode, "bitrate", &bitrate, NULL);
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_NOMINAL_BITRATE,
bitrate, NULL);
if ((encoder =
gst_element_class_get_metadata (GST_ELEMENT_GET_CLASS (encode),
GST_ELEMENT_METADATA_LONGNAME)))
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_ENCODER, encoder,
NULL);
if ((codec =
gst_vaapi_codec_get_name (gst_vaapi_profile_get_codec
(gst_vaapi_profile_from_caps (state->caps)))))
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_CODEC, codec,
NULL);
gst_video_encoder_merge_tags (venc, tags, GST_TAG_MERGE_REPLACE);
gst_tag_list_unref (tags);
}
return TRUE;
}
static GstFlowReturn