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vpxdec: Use threads on multi-core systems

Browse source 
This adds an automatic mode to the threads property of vpxdec in order to
use as many threads as there is CPU on the platform. This brings back
GStreamer VPX decoding performance closer to what is achieved by other
players, including Chromium.

https://bugzilla.gnome.org/show_bug.cgi?id=758195
This commit is contained in:
Nicolas Dufresne 2015-11-16 16:23:43 -05:00
parent 8bcc733cec
commit b848c1b6ff
2 changed files with 16 additions and 8 deletions
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12
ext/vpx/gstvp8dec.c
View file

@ -58,7 +58,7 @@ GST_DEBUG_CATEGORY_STATIC (gst_vp8dec_debug);
#define DEFAULT_POST_PROCESSING_FLAGS (VP8_DEBLOCK | VP8_DEMACROBLOCK | VP8_MFQE)
#define DEFAULT_DEBLOCKING_LEVEL 4
#define DEFAULT_NOISE_LEVEL 0
#define DEFAULT_THREADS 1
#define DEFAULT_THREADS 0
enum
{
@ -168,8 +168,8 @@ gst_vp8_dec_class_init (GstVP8DecClass * klass)
g_object_class_install_property (gobject_class, PROP_THREADS,
g_param_spec_uint ("threads", "Max Threads",
"Maximum number of decoding threads",
1, 16, DEFAULT_THREADS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
"Maximum number of decoding threads (0 = automatic)",
0, 16, DEFAULT_THREADS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_vp8_dec_src_template));
@ -456,7 +456,11 @@ open_codec (GstVP8Dec * dec, GstVideoCodecFrame * frame)
cfg.w = stream_info.w;
cfg.h = stream_info.h;
cfg.threads = dec->threads;
if (dec->threads > 0)
cfg.threads = dec->threads;
else
cfg.threads = g_get_num_processors ();
caps = vpx_codec_get_caps (&vpx_codec_vp8_dx_algo);

12
ext/vpx/gstvp9dec.c
View file

@ -58,7 +58,7 @@ GST_DEBUG_CATEGORY_STATIC (gst_vp9dec_debug);
#define DEFAULT_POST_PROCESSING_FLAGS (VP8_DEBLOCK | VP8_DEMACROBLOCK)
#define DEFAULT_DEBLOCKING_LEVEL 4
#define DEFAULT_NOISE_LEVEL 0
#define DEFAULT_THREADS 1
#define DEFAULT_THREADS 0
enum
{
@ -168,8 +168,8 @@ gst_vp9_dec_class_init (GstVP9DecClass * klass)
g_object_class_install_property (gobject_class, PROP_THREADS,
g_param_spec_uint ("threads", "Max Threads",
"Maximum number of decoding threads",
1, 16, DEFAULT_THREADS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
"Maximum number of decoding threads (0 = automatic)",
0, 16, DEFAULT_THREADS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_vp9_dec_src_template));
@ -449,7 +449,11 @@ open_codec (GstVP9Dec * dec, GstVideoCodecFrame * frame)
cfg.w = stream_info.w;
cfg.h = stream_info.h;
cfg.threads = dec->threads;
if (dec->threads > 0)
cfg.threads = dec->threads;
else
cfg.threads = g_get_num_processors ();
caps = vpx_codec_get_caps (&vpx_codec_vp9_dx_algo);