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libs: encoder: h264: add refs property

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Users can provide the number of reference frame by this property.

The value of the property will be considered as the number of
reference picture list0 and will add 1 reference frame more to the
reference picture list1 internally if b-frame encoding.

If the value provided is bigger than the number of refrence frames
supported in the driver, it will be lowered.

https://bugzilla.gnome.org/show_bug.cgi?id=783803
This commit is contained in:
Hyunjun Ko 2017-08-02 14:53:34 +09:00 committed by Víctor Manuel Jáquez Leal
parent ec76a9a7e3
commit cd6a9736bd
2 changed files with 18 additions and 0 deletions
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16
gst-libs/gst/vaapi/gstvaapiencoder_h264.c
View file

@ -730,6 +730,7 @@ struct _GstVaapiEncoderH264
guint32 idr_num;
guint8 pic_order_cnt_type;
guint8 delta_pic_order_always_zero_flag;
guint num_ref_frames;
GstBuffer *sps_data;
GstBuffer *subset_sps_data;
@ -3104,6 +3105,9 @@ gst_vaapi_encoder_h264_set_property (GstVaapiEncoder * base_encoder,
case GST_VAAPI_ENCODER_H264_PROP_COMPLIANCE_MODE:
encoder->compliance_mode = g_value_get_enum (value);
break;
case GST_VAAPI_ENCODER_H264_PROP_NUM_REF_FRAMES:
encoder->num_ref_frames = g_value_get_uint (value);
break;
default:
return GST_VAAPI_ENCODER_STATUS_ERROR_INVALID_PARAMETER;
@ -3171,6 +3175,18 @@ gst_vaapi_encoder_h264_get_default_properties (void)
"Max B-Frames", "Number of B-frames between I and P", 0, 10, 0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiEncoderH264:refs:
*
* The number of reference frames.
* If B frame is encoded, it will add 1 reference frame more.
*/
GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
GST_VAAPI_ENCODER_H264_PROP_NUM_REF_FRAMES,
g_param_spec_uint ("refs", "Number of Reference Frames",
"Number of reference frames", 1, 8, 1,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiEncoderH264:init-qp:
*

2
gst-libs/gst/vaapi/gstvaapiencoder_h264.h
View file

@ -49,6 +49,7 @@ typedef struct _GstVaapiEncoderH264 GstVaapiEncoderH264;
* @GST_VAAPI_ENCODER_H264_PROP_NUM_VIEWS: Number of views per frame.
* @GST_VAAPI_ENCODER_H264_PROP_VIEW_IDS: View IDs
* @GST_VAAPI_ENCODER_H264_PROP_COMPLIANCE_MODE: Relax Compliance restrictions
* @GST_VAAPI_ENCODER_H264_PROP_NUM_REF_FRAMES: Maximum number of reference frames.
*
* The set of H.264 encoder specific configurable properties.
*/
@ -64,6 +65,7 @@ typedef enum {
GST_VAAPI_ENCODER_H264_PROP_VIEW_IDS = -9,
GST_VAAPI_ENCODER_H264_PROP_AUD = -10,
GST_VAAPI_ENCODER_H264_PROP_COMPLIANCE_MODE = -11,
GST_VAAPI_ENCODER_H264_PROP_NUM_REF_FRAMES = -12,
} GstVaapiEncoderH264Prop;
GstVaapiEncoder *