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playbin3: handle GST_PLAY_FLAG_FORCE_SW_DECODERS

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In decodebin3 and uridecodebin3 the `force-sw-decoders` boolean property is
added. In uridecodebin3 it is only a proxy property which will forward
the value to decodebin3.

When decodebin3 has `force-sw-decoders` disabled, it will filter out in its
decoder and decodable factories those elements within the 'Hardware'
class, at reconfiguring output stream.

playbin3 adds by default GST_PLAY_FLAG_FORCE_SW_DECODERS, and sets
`force-sw-decoders` property accordingly to its internal uridecodebin, also
filters out the 'Hardware' class decoder elements when caps
negotiation.
This commit is contained in:
Víctor Manuel Jáquez Leal 2019-11-03 15:52:28 +01:00
parent f3182a88b1
commit f4bcf8290b
3 changed files with 83 additions and 9 deletions
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40
gst/playback/gstdecodebin3.c
View file

@ -265,6 +265,7 @@ struct _GstDecodebin3
/* Properties */
GstCaps *caps;
gboolean force_sw_decoders;
};
struct _GstDecodebin3Class
@ -371,7 +372,8 @@ typedef struct _PendingPad
enum
{
PROP_0,
PROP_CAPS
PROP_CAPS,
PROP_FORCE_SW_DECODERS,
};
/* signals */
@ -423,6 +425,8 @@ G_DEFINE_TYPE (GstDecodebin3, gst_decodebin3, GST_TYPE_BIN);
static GstStaticCaps default_raw_caps = GST_STATIC_CAPS (DEFAULT_RAW_CAPS);
#define DEFAULT_FORCE_SW_DECODERS FALSE
static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
@ -551,6 +555,20 @@ gst_decodebin3_class_init (GstDecodebin3Class * klass)
"The caps on which to stop decoding. (NULL = default)",
GST_TYPE_CAPS, 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 Decoders Only",
"Use only sofware decoders to process streams",
DEFAULT_FORCE_SW_DECODERS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/* FIXME : ADD SIGNALS ! */
/**
* GstDecodebin3::select-stream
@ -627,6 +645,7 @@ gst_decodebin3_init (GstDecodebin3 * dbin)
g_mutex_init (&dbin->input_lock);
dbin->caps = gst_static_caps_get (&default_raw_caps);
dbin->force_sw_decoders = DEFAULT_FORCE_SW_DECODERS;
GST_OBJECT_FLAG_SET (dbin, GST_BIN_FLAG_STREAMS_AWARE);
}
@ -678,6 +697,9 @@ gst_decodebin3_set_property (GObject * object, guint prop_id,
dbin->caps = g_value_dup_boxed (value);
GST_OBJECT_UNLOCK (dbin);
break;
case PROP_FORCE_SW_DECODERS:
dbin->force_sw_decoders = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -697,6 +719,9 @@ gst_decodebin3_get_property (GObject * object, guint prop_id, GValue * value,
g_value_set_boxed (value, dbin->caps);
GST_OBJECT_UNLOCK (dbin);
break;
case PROP_FORCE_SW_DECODERS:
g_value_set_boolean (value, dbin->force_sw_decoders);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -1037,12 +1062,19 @@ gst_decode_bin_update_factories_list (GstDecodebin3 * dbin)
dbin->decodable_factories = NULL;
for (tmp = dbin->factories; tmp; tmp = tmp->next) {
GstElementFactory *fact = (GstElementFactory *) tmp->data;
if (gst_element_factory_list_is_type (fact,
GST_ELEMENT_FACTORY_TYPE_DECODER))
dbin->decoder_factories = g_list_append (dbin->decoder_factories, fact);
else
GST_ELEMENT_FACTORY_TYPE_DECODER)) {
if (!(dbin->force_sw_decoders
&& gst_element_factory_list_is_type (fact,
GST_ELEMENT_FACTORY_TYPE_HARDWARE))) {
dbin->decoder_factories =
g_list_append (dbin->decoder_factories, fact);
}
} else {
dbin->decodable_factories =
g_list_append (dbin->decodable_factories, fact);
}
}
}
}

22
gst/playback/gstplaybin3.c
View file

@ -1763,8 +1763,11 @@ gst_play_bin3_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);
}
@ -3458,7 +3461,8 @@ 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;
@ -3477,7 +3481,9 @@ 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 =
@ -3599,14 +3605,18 @@ 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);
}
@ -4508,6 +4518,8 @@ activate_group (GstPlayBin3 * playbin, GstSourceGroup * group)
"download", ((flags & GST_PLAY_FLAG_DOWNLOAD) != 0),
/* configure buffering of demuxed/parsed data */
"use-buffering", ((flags & GST_PLAY_FLAG_BUFFERING) != 0),
/* configure usage of hardware 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,

30
gst/playback/gsturidecodebin3.c
View file

@ -196,6 +196,7 @@ struct _GstURIDecodeBin3
guint buffer_size; /* When buffering, buffer size (bytes) */
gboolean download;
gboolean use_buffering;
gboolean force_sw_decoders;
guint64 ring_buffer_max_size;
GList *play_items; /* List of GstPlayItem ordered by time of
@ -271,6 +272,7 @@ static GstStaticCaps raw_video_caps = GST_STATIC_CAPS ("video/x-raw(ANY)");
#define DEFAULT_BUFFER_SIZE -1
#define DEFAULT_DOWNLOAD FALSE
#define DEFAULT_USE_BUFFERING FALSE
#define DEFAULT_FORCE_SW_DECODERS FALSE
#define DEFAULT_RING_BUFFER_MAX_SIZE 0
enum
@ -286,6 +288,7 @@ enum
PROP_BUFFER_DURATION,
PROP_DOWNLOAD,
PROP_USE_BUFFERING,
PROP_FORCE_SW_DECODERS,
PROP_RING_BUFFER_MAX_SIZE,
PROP_CAPS
};
@ -428,6 +431,21 @@ gst_uri_decode_bin3_class_init (GstURIDecodeBin3Class * klass)
"Perform buffering on demuxed/parsed media",
DEFAULT_USE_BUFFERING, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstURIDecodeBin3::force-sw-decoders:
*
* While auto-plugging, if set to %TRUE, those decoders within
* "Hardware" klass will by tried. Otherwise they will be ignored.
*
* Since: 1.18
*/
g_object_class_install_property (gobject_class, PROP_FORCE_SW_DECODERS,
g_param_spec_boolean ("force-sw-decoders", "Software Decoders Only",
"Use only sofware decoders to process streams",
DEFAULT_FORCE_SW_DECODERS,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstURIDecodeBin3::ring-buffer-max-size
*
@ -821,6 +839,12 @@ gst_uri_decode_bin3_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:
if (dec->decodebin) {
g_object_set_property (G_OBJECT (dec->decodebin), "force-sw-decoders",
value);
}
break;
case PROP_RING_BUFFER_MAX_SIZE:
dec->ring_buffer_max_size = g_value_get_uint64 (value);
break;
@ -894,6 +918,12 @@ gst_uri_decode_bin3_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:
if (dec->decodebin) {
g_object_get_property (G_OBJECT (dec->decodebin), "force-sw-decoders",
value);
}
break;
case PROP_RING_BUFFER_MAX_SIZE:
g_value_set_uint64 (value, dec->ring_buffer_max_size);
break;