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encoder: h264: Add support of low power/high performance encoding mode

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Added a new property "low-power-enc" for enabling low power
encoding mode. Certain encoding tools may not be available
with the VAEntrypointEncSliceLP.

https://bugzilla.gnome.org/show_bug.cgi?id=766050
This commit is contained in:
Sreerenj Balachandran 2016-05-11 12:05:36 +03:00
parent 8c1cfbaa1e
commit 32ee78bc52
3 changed files with 31 additions and 5 deletions
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8
gst-libs/gst/vaapi/gstvaapiencoder.c
View file

@ -604,10 +604,10 @@ set_context_info (GstVaapiEncoder * encoder)
cip->usage = GST_VAAPI_CONTEXT_USAGE_ENCODE;
cip->profile = encoder->profile;
cip->entrypoint = GST_VAAPI_ENTRYPOINT_SLICE_ENCODE;
if (cdata->codec != GST_VAAPI_CODEC_JPEG)
cip->entrypoint = GST_VAAPI_ENTRYPOINT_SLICE_ENCODE;
else
if (cdata->codec != GST_VAAPI_CODEC_JPEG) {
if (cip->entrypoint != GST_VAAPI_ENTRYPOINT_SLICE_ENCODE_LP)
cip->entrypoint = GST_VAAPI_ENTRYPOINT_SLICE_ENCODE;
} else
cip->entrypoint = GST_VAAPI_ENTRYPOINT_PICTURE_ENCODE;
cip->chroma_type = gst_vaapi_video_format_get_chroma_type (format);
cip->width = GST_VAAPI_ENCODER_WIDTH (encoder);

23
gst-libs/gst/vaapi/gstvaapiencoder_h264.c
View file

@ -745,6 +745,7 @@ struct _GstVaapiEncoderH264
GstVaapiProfile profile;
GstVaapiLevelH264 level;
GstVaapiEntrypoint entrypoint;
guint8 profile_idc;
guint8 max_profile_idc;
guint8 hw_max_profile_idc;
@ -758,6 +759,7 @@ struct _GstVaapiEncoderH264
guint32 mb_height;
gboolean use_cabac;
gboolean use_dct8x8;
gboolean enable_lp;
GstClockTime cts_offset;
gboolean config_changed;
@ -1071,6 +1073,11 @@ ensure_hw_profile (GstVaapiEncoderH264 * encoder)
GstVaapiProfile profile, profiles[4];
guint i, num_profiles = 0;
if (encoder->enable_lp)
entrypoint = GST_VAAPI_ENTRYPOINT_SLICE_ENCODE_LP;
encoder->entrypoint = entrypoint;
profiles[num_profiles++] = encoder->profile;
switch (encoder->profile) {
case GST_VAAPI_PROFILE_H264_CONSTRAINED_BASELINE:
@ -2777,6 +2784,8 @@ set_context_info (GstVaapiEncoder * base_encoder)
base_encoder->codedbuf_size += encoder->num_slices * (4 +
GST_ROUND_UP_8 (MAX_SLICE_HDR_SIZE) / 8);
base_encoder->context_info.entrypoint = encoder->entrypoint;
return GST_VAAPI_ENCODER_STATUS_SUCCESS;
}
@ -2938,6 +2947,9 @@ gst_vaapi_encoder_h264_set_property (GstVaapiEncoder * base_encoder,
}
break;
}
case GST_VAAPI_ENCODER_H264_PROP_LP_MODE:
encoder->enable_lp = g_value_get_boolean (value);
break;
default:
return GST_VAAPI_ENCODER_STATUS_ERROR_INVALID_PARAMETER;
}
@ -3102,6 +3114,17 @@ gst_vaapi_encoder_h264_get_default_properties (void)
"view id values used for mvc encoding", 0, MAX_VIEW_ID, 0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS),
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstVaapiEncoderH264:enable_lp:
*
* Enable low power/high performace encoding mode.
*/
GST_VAAPI_ENCODER_PROPERTIES_APPEND (props,
GST_VAAPI_ENCODER_H264_PROP_LP_MODE,
g_param_spec_boolean ("low-power-enc",
"Enable Low Power Encode",
"Enable Low Power/High Performace encoding",
FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
return props;
}

5
gst-libs/gst/vaapi/gstvaapiencoder_h264.h
View file

@ -48,6 +48,8 @@ typedef struct _GstVaapiEncoderH264 GstVaapiEncoderH264;
* in milliseconds (uint).
* @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_LP_MODE: Enable Low Power/High Performace
* encoding.
*
* The set of H.264 encoder specific configurable properties.
*/
@ -60,7 +62,8 @@ typedef enum {
GST_VAAPI_ENCODER_H264_PROP_DCT8X8 = -6,
GST_VAAPI_ENCODER_H264_PROP_CPB_LENGTH = -7,
GST_VAAPI_ENCODER_H264_PROP_NUM_VIEWS = -8,
GST_VAAPI_ENCODER_H264_PROP_VIEW_IDS = -9
GST_VAAPI_ENCODER_H264_PROP_VIEW_IDS = -9,
GST_VAAPI_ENCODER_H264_PROP_LP_MODE = -10
} GstVaapiEncoderH264Prop;
GstVaapiEncoder *