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va: decoder: Add helper functions to get and change the resolution.

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Some codecs such as VP9, its config and context have the ability to
dynamically. When we only change the width and height, no need to
re-create the config and context. The helper function can just change
the resolution without re-creating config and context.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2407>
This commit is contained in:
He Junyan 2021-07-14 14:27:34 +08:00 committed by Víctor Manuel Jáquez Leal
parent 30e105561d
commit 6887e77201
2 changed files with 57 additions and 0 deletions
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49
sys/va/gstvadecoder.c
View file

@ -346,6 +346,34 @@ gst_va_decoder_set_format (GstVaDecoder * self, gint coded_width,
return TRUE;
}
gboolean
gst_va_decoder_change_resolution (GstVaDecoder * self, gint coded_width,
gint coded_height)
{
g_return_val_if_fail (GST_IS_VA_DECODER (self), FALSE);
if (!gst_va_decoder_is_open (self)) {
GST_ERROR_OBJECT (self, "decoder has not been opened yet");
return FALSE;
}
GST_OBJECT_LOCK (self);
if (self->context == VA_INVALID_ID) {
GST_OBJECT_UNLOCK (self);
GST_INFO_OBJECT (self, "decoder does not have a format");
return FALSE;
}
GST_OBJECT_UNLOCK (self);
GST_OBJECT_LOCK (self);
self->coded_width = coded_width;
self->coded_height = coded_height;
GST_OBJECT_UNLOCK (self);
return TRUE;
}
static gboolean
_get_codec_caps (GstVaDecoder * self)
{
@ -779,3 +807,24 @@ gst_va_decoder_format_changed (GstVaDecoder * decoder, VAProfile new_profile,
decoder->rt_format == new_rtformat &&
decoder->coded_width == new_width && decoder->coded_height == new_height);
}
gboolean
gst_va_decoder_get_config (GstVaDecoder * decoder, VAProfile * profile,
guint * rt_format, gint * width, gint * height)
{
g_return_val_if_fail (decoder, FALSE);
if (!gst_va_decoder_is_open (decoder))
return FALSE;
if (profile)
*profile = decoder->profile;
if (rt_format)
*rt_format = decoder->rt_format;
if (width)
*width = decoder->coded_width;
if (height)
*height = decoder->coded_height;
return TRUE;
}

8
sys/va/gstvadecoder.h
View file

@ -48,6 +48,9 @@ gboolean gst_va_decoder_set_format (GstVaDecoder * self,
gint coded_width,
gint coded_height,
GArray * surfaces);
gboolean gst_va_decoder_change_resolution (GstVaDecoder * self,
gint coded_width,
gint coded_height);
GstCaps * gst_va_decoder_get_srcpad_caps (GstVaDecoder * self);
GstCaps * gst_va_decoder_get_sinkpad_caps (GstVaDecoder * self);
gboolean gst_va_decoder_has_profile (GstVaDecoder * self,
@ -92,5 +95,10 @@ gboolean gst_va_decoder_format_changed (GstVaDecoder * decode
guint new_rtformat,
gint new_width,
gint new_height);
gboolean gst_va_decoder_get_config (GstVaDecoder * decoder,
VAProfile * profile,
guint * rt_format,
gint * width,
gint * height);
G_END_DECLS