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vp8enc: threads property

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Increasing from 1 to 2 threads on an Thinkpad X60s decreased encode time
in a test from ~24 s to ~19 s, so this is quite useful.

Ideally we should let 0 be the default and automatically match the number
of CPU cores (or something).
This commit is contained in:
Philip Jägenstedt 2010-05-21 21:28:29 +02:00 committed by Sebastian Dröge
parent 17ab21dae3
commit 7ce969720f
1 changed files with 17 additions and 2 deletions
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19
ext/vp8/gstvp8enc.c
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@ -78,6 +78,7 @@ struct _GstVP8Enc
int max_latency;
int max_keyframe_distance;
int speed;
int threads;
/* state */
@ -115,6 +116,7 @@ enum
#define DEFAULT_MAX_LATENCY 10
#define DEFAULT_MAX_KEYFRAME_DISTANCE 60
#define DEFAULT_SPEED 0
#define DEFAULT_THREADS 1
enum
{
@ -125,7 +127,8 @@ enum
PROP_ERROR_RESILIENT,
PROP_MAX_LATENCY,
PROP_MAX_KEYFRAME_DISTANCE,
PROP_SPEED
PROP_SPEED,
PROP_THREADS
};
#define GST_VP8_ENC_MODE_TYPE (gst_vp8_enc_mode_get_type())
@ -287,6 +290,12 @@ gst_vp8_enc_class_init (GstVP8EncClass * klass)
0, 2, DEFAULT_SPEED,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
g_object_class_install_property (gobject_class, PROP_THREADS,
g_param_spec_int ("threads", "Threads",
"Threads",
1, 64, DEFAULT_THREADS,
(GParamFlags) (G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)));
GST_DEBUG_CATEGORY_INIT (gst_vp8enc_debug, "vp8enc", 0, "VP8 Encoder");
}
@ -356,6 +365,9 @@ gst_vp8_enc_set_property (GObject * object, guint prop_id,
case PROP_SPEED:
gst_vp8_enc->speed = g_value_get_int (value);
break;
case PROP_THREADS:
gst_vp8_enc->threads = g_value_get_int (value);
break;
default:
break;
}
@ -392,6 +404,9 @@ gst_vp8_enc_get_property (GObject * object, guint prop_id, GValue * value,
case PROP_SPEED:
g_value_set_int (value, gst_vp8_enc->speed);
break;
case PROP_THREADS:
g_value_set_int (value, gst_vp8_enc->threads);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -671,7 +686,7 @@ gst_vp8_enc_handle_frame (GstBaseVideoEncoder * base_video_encoder,
cfg.g_error_resilient = encoder->error_resilient;
cfg.g_pass = VPX_RC_ONE_PASS;
cfg.g_lag_in_frames = encoder->max_latency;
cfg.g_threads = encoder->threads;
cfg.rc_end_usage = encoder->mode;
if (encoder->bitrate) {
cfg.rc_target_bitrate = encoder->bitrate / 1000;