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libs: decoder: h264: add getter/setter for low latency mode

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=783588
This commit is contained in:
Víctor Manuel Jáquez Leal 2017-06-14 18:30:53 +02:00
parent f39b7e97ce
commit 28d1d048a6
2 changed files with 45 additions and 0 deletions
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38
gst-libs/gst/vaapi/gstvaapidecoder_h264.c
View file

@ -528,6 +528,8 @@ struct _GstVaapiDecoderH264Private
guint has_context:1; guint has_context:1;
guint progressive_sequence:1; guint progressive_sequence:1;
guint top_field_first:1; guint top_field_first:1;
gboolean force_low_latency;
}; };
/** /**
@ -4732,6 +4734,42 @@ gst_vaapi_decoder_h264_set_alignment (GstVaapiDecoderH264 * decoder,
decoder->priv.stream_alignment = alignment; decoder->priv.stream_alignment = alignment;
} }
/**
* gst_vaapi_decoder_h264_set_low_latency:
* @decoder: a #GstVaapiDecoderH264
* @force_low_latency: %TRUE if force low latency
*
* if @force_low_latency is %TRUE the decoded frames are pushed soon
* as possible, instead of to wait until decoded picture buffer (DPB)
* release them.
*
* This violate the H.264 specification but it is useful for some live
* sources.
**/
void
gst_vaapi_decoder_h264_set_low_latency (GstVaapiDecoderH264 * decoder,
gboolean force_low_latency)
{
g_return_if_fail (decoder != NULL);
decoder->priv.force_low_latency = force_low_latency;
}
/**
* gst_vaapi_decoder_h264_get_low_latency:
* @decoder: a #GstVaapiDecoderH264
*
* Returns: %TRUE if the low latency mode is enabled; otherwise
* %FALSE.
**/
gboolean
gst_vaapi_decoder_h264_get_low_latency (GstVaapiDecoderH264 * decoder)
{
g_return_val_if_fail (decoder != NULL, FALSE);
return decoder->priv.force_low_latency;
}
/** /**
* gst_vaapi_decoder_h264_new: * gst_vaapi_decoder_h264_new:
* @display: a #GstVaapiDisplay * @display: a #GstVaapiDisplay

7
gst-libs/gst/vaapi/gstvaapidecoder_h264.h
View file

@ -55,6 +55,13 @@ void
gst_vaapi_decoder_h264_set_alignment(GstVaapiDecoderH264 *decoder, gst_vaapi_decoder_h264_set_alignment(GstVaapiDecoderH264 *decoder,
GstVaapiStreamAlignH264 alignment); GstVaapiStreamAlignH264 alignment);
gboolean
gst_vaapi_decoder_h264_get_low_latency(GstVaapiDecoderH264 * decoder);
void
gst_vaapi_decoder_h264_set_low_latency(GstVaapiDecoderH264 * decoder,
gboolean force_low_latency);
G_END_DECLS G_END_DECLS
#endif /* GST_VAAPI_DECODER_H264_H */ #endif /* GST_VAAPI_DECODER_H264_H */