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playbin2: handle GST_PLAY_FLAG_FORCE_SW_DECODERS

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Added `force-sw-decoders` boolean property in decodebin2 and
uridecodebin. By default the property is %FALSE and it bypass the new
code. Otherwise the factory list is filtered removing decoders
within 'Hardware' class.

uridecodebin sets the `force-sw-decoders` property in its internal
decodebin, and also filters out Hardware class in the
autoplug-factories default signal handler.

playbin2 adds by default GST_PLAY_FLAG_FORCE_SW_DECODERS it its flags
property, and depending on it playbin2 sets the `force-sw-decoders`
property on its internal uridecodebin, also filters out the Hardware
class decoding decoders at the autoplug-factories signal handler.
This commit is contained in:
Víctor Manuel Jáquez Leal 2019-11-03 15:37:44 +01:00
parent d50c71708a
commit f3182a88b1
3 changed files with 108 additions and 7 deletions
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45
gst/playback/gstdecodebin2.c
View file

@ -149,6 +149,7 @@ struct _GstDecodeBin
GstCaps *caps; /* caps on which to stop decoding */
gchar *encoding; /* encoding of subtitles */
gboolean use_buffering; /* configure buffering on multiqueues */
gboolean force_sw_decoders;
gint low_percent;
gint high_percent;
guint max_size_bytes;
@ -253,6 +254,7 @@ enum
#define DEFAULT_SUBTITLE_ENCODING NULL
#define DEFAULT_USE_BUFFERING FALSE
#define DEFAULT_FORCE_SW_DECODERS FALSE
#define DEFAULT_LOW_PERCENT 10
#define DEFAULT_HIGH_PERCENT 99
/* by default we use the automatic values above */
@ -271,6 +273,7 @@ enum
PROP_SUBTITLE_ENCODING,
PROP_SINK_CAPS,
PROP_USE_BUFFERING,
PROP_FORCE_SW_DECODERS,
PROP_LOW_PERCENT,
PROP_HIGH_PERCENT,
PROP_MAX_SIZE_BYTES,
@ -908,6 +911,20 @@ gst_decode_bin_class_init (GstDecodeBinClass * klass)
"Emit GST_MESSAGE_BUFFERING based on low-/high-percent thresholds",
DEFAULT_USE_BUFFERING, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstDecodeBin::force-sw-decoders:
*
* While auto-plugging, if set to %TRUE, those decoders within
* "Hardware" klass will be ignored. Otherwise they will be tried.
*
* Since: 1.18
*/
g_object_class_install_property (gobject_klass, PROP_FORCE_SW_DECODERS,
g_param_spec_boolean ("force-sw-decoders", "Software Docoders Only",
"Use only sofware decoders to process streams",
DEFAULT_FORCE_SW_DECODERS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstDecodeBin:low-percent
*
@ -1034,14 +1051,33 @@ static void
gst_decode_bin_update_factories_list (GstDecodeBin * dbin)
{
guint cookie;
GList *factories, *tmp;
cookie = gst_registry_get_feature_list_cookie (gst_registry_get ());
if (!dbin->factories || dbin->factories_cookie != cookie) {
if (dbin->factories)
gst_plugin_feature_list_free (dbin->factories);
dbin->factories =
factories =
gst_element_factory_list_get_elements
(GST_ELEMENT_FACTORY_TYPE_DECODABLE, GST_RANK_MARGINAL);
if (dbin->force_sw_decoders) {
/* filter out Hardware class elements */
dbin->factories = NULL;
for (tmp = factories; tmp; tmp = g_list_next (tmp)) {
GstElementFactory *factory = GST_ELEMENT_FACTORY_CAST (tmp->data);
if (!gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_HARDWARE)) {
dbin->factories = g_list_prepend (dbin->factories, factory);
} else {
gst_object_unref (factory);
}
}
g_list_free (factories);
} else {
dbin->factories = factories;
}
dbin->factories =
g_list_sort (dbin->factories,
gst_playback_utils_compare_factories_func);
@ -1103,6 +1139,7 @@ gst_decode_bin_init (GstDecodeBin * decode_bin)
decode_bin->encoding = g_strdup (DEFAULT_SUBTITLE_ENCODING);
decode_bin->caps = gst_static_caps_get (&default_raw_caps);
decode_bin->use_buffering = DEFAULT_USE_BUFFERING;
decode_bin->force_sw_decoders = DEFAULT_FORCE_SW_DECODERS;
decode_bin->low_percent = DEFAULT_LOW_PERCENT;
decode_bin->high_percent = DEFAULT_HIGH_PERCENT;
@ -1276,6 +1313,9 @@ gst_decode_bin_set_property (GObject * object, guint prop_id,
case PROP_USE_BUFFERING:
dbin->use_buffering = g_value_get_boolean (value);
break;
case PROP_FORCE_SW_DECODERS:
dbin->force_sw_decoders = g_value_get_boolean (value);
break;
case PROP_LOW_PERCENT:
dbin->low_percent = g_value_get_int (value);
break;
@ -1328,6 +1368,9 @@ gst_decode_bin_get_property (GObject * object, guint prop_id,
case PROP_USE_BUFFERING:
g_value_set_boolean (value, dbin->use_buffering);
break;
case PROP_FORCE_SW_DECODERS:
g_value_set_boolean (value, dbin->force_sw_decoders);
break;
case PROP_LOW_PERCENT:
g_value_set_int (value, dbin->low_percent);
break;

22
gst/playback/gstplaybin2.c
View file

@ -2404,8 +2404,11 @@ gst_play_bin_set_property (GObject * object, guint prop_id,
if (playbin->curr_group) {
GST_SOURCE_GROUP_LOCK (playbin->curr_group);
if (playbin->curr_group->uridecodebin) {
g_object_set (playbin->curr_group->uridecodebin, "download",
(g_value_get_flags (value) & GST_PLAY_FLAG_DOWNLOAD) != 0, NULL);
guint flags = g_value_get_flags (value);
g_object_set (playbin->curr_group->uridecodebin,
"download", (flags & GST_PLAY_FLAG_DOWNLOAD) != 0,
"force-sw-decoders",
(flags & GST_PLAY_FLAG_FORCE_SW_DECODERS) != 0, NULL);
}
GST_SOURCE_GROUP_UNLOCK (playbin->curr_group);
}
@ -4131,7 +4134,8 @@ avelement_iter_is_equal (GSequenceIter * iter, GstElementFactory * factory)
}
static GList *
create_decoders_list (GList * factory_list, GSequence * avelements)
create_decoders_list (GList * factory_list, GSequence * avelements,
GstPlayFlags flags)
{
GList *dec_list = NULL, *tmp;
GList *ave_list = NULL;
@ -4150,7 +4154,9 @@ create_decoders_list (GList * factory_list, GSequence * avelements)
gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_SINK)) {
dec_list = g_list_prepend (dec_list, gst_object_ref (factory));
} else {
} else if (!(((flags & GST_PLAY_FLAG_FORCE_SW_DECODERS) != 0)
&& gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_HARDWARE))) {
GSequenceIter *seq_iter;
seq_iter =
@ -4272,14 +4278,18 @@ autoplug_factories_cb (GstElement * decodebin, GstPad * pad,
if (isaudiodeclist || isvideodeclist) {
GSequence **ave_list;
GstPlayFlags flags;
if (isaudiodeclist)
ave_list = &playbin->aelements;
else
ave_list = &playbin->velements;
flags = gst_play_bin_get_flags (playbin);
g_mutex_lock (&playbin->elements_lock);
/* sort factory_list based on the GstAVElement list priority */
factory_list = create_decoders_list (factory_list, *ave_list);
factory_list = create_decoders_list (factory_list, *ave_list, flags);
g_mutex_unlock (&playbin->elements_lock);
}
@ -5366,6 +5376,8 @@ activate_group (GstPlayBin * playbin, GstSourceGroup * group, GstState target)
"download", ((flags & GST_PLAY_FLAG_DOWNLOAD) != 0),
/* configure buffering of demuxed/parsed data */
"use-buffering", ((flags & GST_PLAY_FLAG_BUFFERING) != 0),
/* enable hardware-based elements */
"force-sw-decoders", ((flags & GST_PLAY_FLAG_FORCE_SW_DECODERS) != 0),
/* configure buffering parameters */
"buffer-duration", playbin->buffer_duration,
"buffer-size", playbin->buffer_size,

48
gst/playback/gsturidecodebin.c
View file

@ -95,6 +95,7 @@ struct _GstURIDecodeBin
guint buffer_size; /* When buffering, buffer size (bytes) */
gboolean download;
gboolean use_buffering;
gboolean force_sw_decoders;
GstElement *source;
GstElement *queue;
@ -180,6 +181,7 @@ enum
#define DEFAULT_BUFFER_SIZE -1
#define DEFAULT_DOWNLOAD FALSE
#define DEFAULT_USE_BUFFERING FALSE
#define DEFAULT_FORCE_SW_DECODERS FALSE
#define DEFAULT_EXPOSE_ALL_STREAMS TRUE
#define DEFAULT_RING_BUFFER_MAX_SIZE 0
@ -195,6 +197,7 @@ enum
PROP_BUFFER_DURATION,
PROP_DOWNLOAD,
PROP_USE_BUFFERING,
PROP_FORCE_SW_DECODERS,
PROP_EXPOSE_ALL_STREAMS,
PROP_RING_BUFFER_MAX_SIZE
};
@ -311,14 +314,33 @@ static void
gst_uri_decode_bin_update_factories_list (GstURIDecodeBin * dec)
{
guint32 cookie;
GList *factories, *tmp;
cookie = gst_registry_get_feature_list_cookie (gst_registry_get ());
if (!dec->factories || dec->factories_cookie != cookie) {
if (dec->factories)
gst_plugin_feature_list_free (dec->factories);
dec->factories =
factories =
gst_element_factory_list_get_elements
(GST_ELEMENT_FACTORY_TYPE_DECODABLE, GST_RANK_MARGINAL);
if (dec->force_sw_decoders) {
/* filter out Hardware class elements */
dec->factories = NULL;
for (tmp = factories; tmp; tmp = g_list_next (tmp)) {
GstElementFactory *factory = GST_ELEMENT_FACTORY_CAST (tmp->data);
if (!gst_element_factory_list_is_type (factory,
GST_ELEMENT_FACTORY_TYPE_HARDWARE)) {
dec->factories = g_list_prepend (dec->factories, factory);
} else {
gst_object_unref (factory);
}
}
g_list_free (factories);
} else {
dec->factories = factories;
}
dec->factories =
g_list_sort (dec->factories, gst_playback_utils_compare_factories_func);
dec->factories_cookie = cookie;
@ -461,6 +483,20 @@ gst_uri_decode_bin_class_init (GstURIDecodeBinClass * klass)
"Perform buffering on demuxed/parsed media",
DEFAULT_USE_BUFFERING, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstURIDecodeBin::force-sw-decoders:
*
* While auto-plugging, if set to %TRUE, those decoders within
* "Hardware" klass will be ignored. Otherwise they will be tried.
*
* Since: 1.18
*/
g_object_class_install_property (gobject_class, PROP_FORCE_SW_DECODERS,
g_param_spec_boolean ("force-sw-decoders", "Software Docoders Only",
"Use only sofware decoders to process streams",
DEFAULT_FORCE_SW_DECODERS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstURIDecodeBin::expose-all-streams:
*
@ -713,6 +749,7 @@ gst_uri_decode_bin_init (GstURIDecodeBin * dec)
dec->buffer_size = DEFAULT_BUFFER_SIZE;
dec->download = DEFAULT_DOWNLOAD;
dec->use_buffering = DEFAULT_USE_BUFFERING;
dec->force_sw_decoders = DEFAULT_FORCE_SW_DECODERS;
dec->expose_allstreams = DEFAULT_EXPOSE_ALL_STREAMS;
dec->ring_buffer_max_size = DEFAULT_RING_BUFFER_MAX_SIZE;
@ -801,6 +838,9 @@ gst_uri_decode_bin_set_property (GObject * object, guint prop_id,
case PROP_USE_BUFFERING:
dec->use_buffering = g_value_get_boolean (value);
break;
case PROP_FORCE_SW_DECODERS:
dec->force_sw_decoders = g_value_get_boolean (value);
break;
case PROP_EXPOSE_ALL_STREAMS:
dec->expose_allstreams = g_value_get_boolean (value);
break;
@ -861,6 +901,9 @@ gst_uri_decode_bin_get_property (GObject * object, guint prop_id,
case PROP_USE_BUFFERING:
g_value_set_boolean (value, dec->use_buffering);
break;
case PROP_FORCE_SW_DECODERS:
g_value_set_boolean (value, dec->force_sw_decoders);
break;
case PROP_EXPOSE_ALL_STREAMS:
g_value_set_boolean (value, dec->expose_allstreams);
break;
@ -1815,6 +1858,9 @@ make_decoder (GstURIDecodeBin * decoder)
"unknown-type", G_CALLBACK (unknown_type_cb), decoder);
}
g_object_set (decodebin, "force-sw-decoders", decoder->force_sw_decoders,
NULL);
/* configure caps if we have any */
if (decoder->caps)
g_object_set (decodebin, "caps", decoder->caps, NULL);