mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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audioaggregator: implement input conversion
https://bugzilla.gnome.org/show_bug.cgi?id=786344
This commit is contained in:
Mathieu Duponchelle
Mathieu Duponchelle
parent
6c0744a5fc
commit
164b5a7f94
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@ -29,6 +29,38 @@
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* aggregating their buffers for raw audio
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* @see_also: #GstAggregator
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*
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* #GstAudioAggregator will perform conversion on the data arriving
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* on its sink pads, based on the format expected downstream.
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*
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* Subclasses can opt out of the conversion behaviour by setting
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* #GstAudioAggregator.convert_buffer() to %NULL.
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*
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* Subclasses that wish to use the default conversion implementation
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* should use a (subclass of) #GstAudioAggregatorConvertPad as their
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* #GstAggregatorClass.sinkpads_type, as it will cache the created
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* #GstAudioConverter and install a property allowing to configure it,
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* #GstAudioAggregatorPadClass:converter-config.
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*
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* Subclasses that wish to perform custom conversion should override
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* #GstAudioAggregator.convert_buffer().
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*
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* When conversion is enabled, #GstAudioAggregator will accept
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* any type of raw audio caps and perform conversion
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* on the data arriving on its sink pads, with whatever downstream
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* expects as the target format.
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*
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* In case downstream caps are not fully fixated, it will use
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* the first configured sink pad to finish fixating its source pad
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* caps.
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*
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* Additionally, handling audio conversion directly in the element
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* means that this base class supports safely reconfiguring its
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* source pad.
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*
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* A notable exception for now is the sample rate, sink pads must
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* have the same sample rate as either the downstream requirement,
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* or the first configured pad, or a combination of both (when
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* downstream specifies a range or a set of acceptable rates).
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*/
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@ -47,7 +79,7 @@ struct _GstAudioAggregatorPadPrivate
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{
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/* All members are protected by the pad object lock */
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GstBuffer *buffer; /* current input buffer we're mixing, for
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GstBuffer *buffer; /* current buffer we're mixing, for
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comparison with a new input buffer from
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aggregator to see if we need to update our
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cached values. */
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@ -55,6 +87,8 @@ struct _GstAudioAggregatorPadPrivate
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guint position, size; /* position in the input buffer and size of the
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input buffer in number of samples */
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GstBuffer *input_buffer;
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guint64 output_offset; /* Sample offset in output segment relative to
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pad.segment.start that position refers to
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in the current buffer. */
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@ -76,6 +110,12 @@ struct _GstAudioAggregatorPadPrivate
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G_DEFINE_TYPE (GstAudioAggregatorPad, gst_audio_aggregator_pad,
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GST_TYPE_AGGREGATOR_PAD);
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enum
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{
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PROP_PAD_0,
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PROP_PAD_CONVERTER_CONFIG,
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};
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static GstFlowReturn
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gst_audio_aggregator_pad_flush_pad (GstAggregatorPad * aggpad,
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GstAggregator * aggregator);
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@ -86,6 +126,7 @@ gst_audio_aggregator_pad_finalize (GObject * object)
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GstAudioAggregatorPad *pad = (GstAudioAggregatorPad *) object;
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gst_buffer_replace (&pad->priv->buffer, NULL);
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gst_buffer_replace (&pad->priv->input_buffer, NULL);
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G_OBJECT_CLASS (gst_audio_aggregator_pad_parent_class)->finalize (object);
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}
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@ -112,6 +153,7 @@ gst_audio_aggregator_pad_init (GstAudioAggregatorPad * pad)
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gst_audio_info_init (&pad->info);
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pad->priv->buffer = NULL;
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pad->priv->input_buffer = NULL;
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pad->priv->position = 0;
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pad->priv->size = 0;
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pad->priv->output_offset = -1;
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@ -131,13 +173,182 @@ gst_audio_aggregator_pad_flush_pad (GstAggregatorPad * aggpad,
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pad->priv->output_offset = pad->priv->next_offset = -1;
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pad->priv->discont_time = GST_CLOCK_TIME_NONE;
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gst_buffer_replace (&pad->priv->buffer, NULL);
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gst_buffer_replace (&pad->priv->input_buffer, NULL);
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GST_OBJECT_UNLOCK (aggpad);
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return GST_FLOW_OK;
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}
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struct _GstAudioAggregatorConvertPadPrivate
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{
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/* All members are protected by the pad object lock */
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GstAudioConverter *converter;
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GstStructure *converter_config;
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gboolean converter_config_changed;
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};
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G_DEFINE_TYPE (GstAudioAggregatorConvertPad, gst_audio_aggregator_convert_pad,
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GST_TYPE_AUDIO_AGGREGATOR_PAD);
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static void
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gst_audio_aggregator_convert_pad_update_converter (GstAudioAggregatorConvertPad
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* aaggcpad, GstAudioInfo * in_info, GstAudioInfo * out_info)
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{
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if (!aaggcpad->priv->converter_config_changed)
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return;
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if (aaggcpad->priv->converter) {
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gst_audio_converter_free (aaggcpad->priv->converter);
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aaggcpad->priv->converter = NULL;
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}
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if (gst_audio_info_is_equal (in_info, out_info) ||
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in_info->finfo->format == GST_AUDIO_FORMAT_UNKNOWN) {
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if (aaggcpad->priv->converter) {
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gst_audio_converter_free (aaggcpad->priv->converter);
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aaggcpad->priv->converter = NULL;
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}
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} else {
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/* If we haven't received caps yet, this pad should not have
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* a buffer to convert anyway */
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aaggcpad->priv->converter =
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gst_audio_converter_new (GST_AUDIO_CONVERTER_FLAG_NONE,
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in_info, out_info,
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aaggcpad->priv->converter_config ? gst_structure_copy (aaggcpad->
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priv->converter_config) : NULL);
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}
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aaggcpad->priv->converter_config_changed = FALSE;
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}
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static GstBuffer *
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gst_audio_aggregator_convert_pad_convert_buffer (GstAudioAggregatorConvertPad *
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aaggcpad, GstAudioInfo * in_info, GstAudioInfo * out_info,
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GstBuffer * input_buffer)
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{
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GstBuffer *res;
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gst_audio_aggregator_convert_pad_update_converter (aaggcpad, in_info,
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out_info);
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if (aaggcpad->priv->converter) {
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gint insize = gst_buffer_get_size (input_buffer);
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gsize insamples = insize / in_info->bpf;
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gsize outsamples =
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gst_audio_converter_get_out_frames (aaggcpad->priv->converter,
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insamples);
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gint outsize = outsamples * out_info->bpf;
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GstMapInfo inmap, outmap;
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res = gst_buffer_new_allocate (NULL, outsize, NULL);
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/* We create a perfectly similar buffer, except obviously for
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* its converted contents */
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gst_buffer_copy_into (res, input_buffer,
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GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS |
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GST_BUFFER_COPY_META, 0, -1);
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gst_buffer_map (input_buffer, &inmap, GST_MAP_READ);
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gst_buffer_map (res, &outmap, GST_MAP_WRITE);
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gst_audio_converter_samples (aaggcpad->priv->converter,
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GST_AUDIO_CONVERTER_FLAG_NONE,
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(gpointer *) & inmap.data, insamples,
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(gpointer *) & outmap.data, outsamples);
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gst_buffer_unmap (input_buffer, &inmap);
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gst_buffer_unmap (res, &outmap);
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} else {
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res = gst_buffer_ref (input_buffer);
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}
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return res;
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}
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static void
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gst_audio_aggregator_convert_pad_finalize (GObject * object)
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{
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GstAudioAggregatorConvertPad *pad = (GstAudioAggregatorConvertPad *) object;
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if (pad->priv->converter)
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gst_audio_converter_free (pad->priv->converter);
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if (pad->priv->converter_config)
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gst_structure_free (pad->priv->converter_config);
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G_OBJECT_CLASS (gst_audio_aggregator_convert_pad_parent_class)->finalize
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(object);
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}
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static void
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gst_audio_aggregator_convert_pad_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstAudioAggregatorConvertPad *pad = GST_AUDIO_AGGREGATOR_CONVERT_PAD (object);
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switch (prop_id) {
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case PROP_PAD_CONVERTER_CONFIG:
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GST_OBJECT_LOCK (pad);
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if (pad->priv->converter_config)
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g_value_set_boxed (value, pad->priv->converter_config);
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GST_OBJECT_UNLOCK (pad);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_audio_aggregator_convert_pad_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstAudioAggregatorConvertPad *pad = GST_AUDIO_AGGREGATOR_CONVERT_PAD (object);
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switch (prop_id) {
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case PROP_PAD_CONVERTER_CONFIG:
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GST_OBJECT_LOCK (pad);
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if (pad->priv->converter_config)
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gst_structure_free (pad->priv->converter_config);
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pad->priv->converter_config = g_value_dup_boxed (value);
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pad->priv->converter_config_changed = TRUE;
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GST_OBJECT_UNLOCK (pad);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_audio_aggregator_convert_pad_class_init (GstAudioAggregatorConvertPadClass *
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klass)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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g_type_class_add_private (klass,
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sizeof (GstAudioAggregatorConvertPadPrivate));
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gobject_class->set_property = gst_audio_aggregator_convert_pad_set_property;
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gobject_class->get_property = gst_audio_aggregator_convert_pad_get_property;
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g_object_class_install_property (gobject_class, PROP_PAD_CONVERTER_CONFIG,
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g_param_spec_boxed ("converter-config", "Converter configuration",
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"A GstStructure describing the configuration that should be used "
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"when converting this pad's audio buffers",
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GST_TYPE_STRUCTURE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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gobject_class->finalize = gst_audio_aggregator_convert_pad_finalize;
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}
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static void
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gst_audio_aggregator_convert_pad_init (GstAudioAggregatorConvertPad * pad)
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{
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pad->priv =
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G_TYPE_INSTANCE_GET_PRIVATE (pad, GST_TYPE_AUDIO_AGGREGATOR_CONVERT_PAD,
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GstAudioAggregatorConvertPadPrivate);
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}
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/**************************************
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* GstAudioAggregator implementation *
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**************************************/
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@ -179,6 +390,9 @@ static gboolean gst_audio_aggregator_sink_event (GstAggregator * agg,
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GstAggregatorPad * aggpad, GstEvent * event);
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static gboolean gst_audio_aggregator_src_query (GstAggregator * agg,
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GstQuery * query);
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static gboolean
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gst_audio_aggregator_sink_query (GstAggregator * agg, GstAggregatorPad * aggpad,
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GstQuery * query);
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static gboolean gst_audio_aggregator_start (GstAggregator * agg);
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static gboolean gst_audio_aggregator_stop (GstAggregator * agg);
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static GstFlowReturn gst_audio_aggregator_flush (GstAggregator * agg);
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@ -192,6 +406,11 @@ static GstFlowReturn gst_audio_aggregator_aggregate (GstAggregator * agg,
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static gboolean sync_pad_values (GstElement * aagg, GstPad * pad, gpointer ud);
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static gboolean gst_audio_aggregator_negotiated_src_caps (GstAggregator * agg,
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GstCaps * caps);
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static GstFlowReturn
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gst_audio_aggregator_update_src_caps (GstAggregator * agg,
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GstCaps * caps, GstCaps ** ret);
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static GstCaps *gst_audio_aggregator_fixate_src_caps (GstAggregator * agg,
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GstCaps * caps);
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#define DEFAULT_OUTPUT_BUFFER_DURATION (10 * GST_MSECOND)
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#define DEFAULT_ALIGNMENT_THRESHOLD (40 * GST_MSECOND)
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@ -229,6 +448,66 @@ gst_audio_aggregator_get_next_time (GstAggregator * agg)
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return next_time;
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}
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static GstBuffer *
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gst_audio_aggregator_convert_once (GstAudioAggregator * aagg, GstPad * pad,
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GstAudioInfo * in_info, GstAudioInfo * out_info, GstBuffer * buffer)
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{
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GstAudioConverter *converter =
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gst_audio_converter_new (GST_AUDIO_CONVERTER_FLAG_NONE,
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in_info, out_info, NULL);
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gint insize = gst_buffer_get_size (buffer);
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gsize insamples = insize / in_info->bpf;
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gsize outsamples = gst_audio_converter_get_out_frames (converter,
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insamples);
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gint outsize = outsamples * out_info->bpf;
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GstMapInfo inmap, outmap;
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GstBuffer *converted = gst_buffer_new_allocate (NULL, outsize, NULL);
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gst_buffer_copy_into (converted, buffer,
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GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS |
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GST_BUFFER_COPY_META, 0, -1);
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gst_buffer_map (buffer, &inmap, GST_MAP_READ);
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gst_buffer_map (converted, &outmap, GST_MAP_WRITE);
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gst_audio_converter_samples (converter,
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GST_AUDIO_CONVERTER_FLAG_NONE,
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(gpointer *) & inmap.data, insamples,
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(gpointer *) & outmap.data, outsamples);
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gst_buffer_unmap (buffer, &inmap);
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gst_buffer_unmap (converted, &outmap);
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gst_audio_converter_free (converter);
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return converted;
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}
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static GstBuffer *
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gst_audio_aggregator_default_convert_buffer (GstAudioAggregator * aagg,
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GstPad * pad, GstAudioInfo * in_info, GstAudioInfo * out_info,
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GstBuffer * buffer)
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{
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if (GST_IS_AUDIO_AGGREGATOR_CONVERT_PAD (pad))
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return
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gst_audio_aggregator_convert_pad_convert_buffer
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(GST_AUDIO_AGGREGATOR_CONVERT_PAD (pad),
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&GST_AUDIO_AGGREGATOR_PAD (pad)->info, out_info, buffer);
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else
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return gst_audio_aggregator_convert_once (aagg, pad, in_info, out_info,
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buffer);
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}
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static GstBuffer *
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gst_audio_aggregator_convert_buffer (GstAudioAggregator * aagg, GstPad * pad,
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GstAudioInfo * in_info, GstAudioInfo * out_info, GstBuffer * buffer)
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{
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GstAudioAggregatorClass *klass = GST_AUDIO_AGGREGATOR_GET_CLASS (aagg);
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g_assert (klass->convert_buffer);
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return klass->convert_buffer (aagg, pad, in_info, out_info, buffer);
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}
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static void
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gst_audio_aggregator_class_init (GstAudioAggregatorClass * klass)
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{
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@ -247,6 +526,7 @@ gst_audio_aggregator_class_init (GstAudioAggregatorClass * klass)
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GST_DEBUG_FUNCPTR (gst_audio_aggregator_sink_event);
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gstaggregator_class->src_query =
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GST_DEBUG_FUNCPTR (gst_audio_aggregator_src_query);
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gstaggregator_class->sink_query = gst_audio_aggregator_sink_query;
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gstaggregator_class->start = gst_audio_aggregator_start;
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gstaggregator_class->stop = gst_audio_aggregator_stop;
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gstaggregator_class->flush = gst_audio_aggregator_flush;
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@ -254,10 +534,14 @@ gst_audio_aggregator_class_init (GstAudioAggregatorClass * klass)
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GST_DEBUG_FUNCPTR (gst_audio_aggregator_aggregate);
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gstaggregator_class->clip = GST_DEBUG_FUNCPTR (gst_audio_aggregator_do_clip);
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gstaggregator_class->get_next_time = gst_audio_aggregator_get_next_time;
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gstaggregator_class->update_src_caps =
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GST_DEBUG_FUNCPTR (gst_audio_aggregator_update_src_caps);
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gstaggregator_class->fixate_src_caps = gst_audio_aggregator_fixate_src_caps;
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gstaggregator_class->negotiated_src_caps =
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gst_audio_aggregator_negotiated_src_caps;
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klass->create_output_buffer = gst_audio_aggregator_create_output_buffer;
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klass->convert_buffer = gst_audio_aggregator_default_convert_buffer;
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GST_DEBUG_CATEGORY_INIT (audio_aggregator_debug, "audioaggregator",
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GST_DEBUG_FG_MAGENTA, "GstAudioAggregator");
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@ -361,6 +645,263 @@ gst_audio_aggregator_get_property (GObject * object, guint prop_id,
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}
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}
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/* Caps negotiation */
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/* Unref after usage */
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static GstAudioAggregatorPad *
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gst_audio_aggregator_get_first_configured_pad (GstAggregator * agg)
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{
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GstAudioAggregatorPad *res = NULL;
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GList *l;
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GST_OBJECT_LOCK (agg);
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for (l = GST_ELEMENT (agg)->sinkpads; l; l = l->next) {
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GstAudioAggregatorPad *aaggpad = l->data;
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if (GST_AUDIO_INFO_FORMAT (&aaggpad->info) != GST_AUDIO_FORMAT_UNKNOWN) {
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res = gst_object_ref (aaggpad);
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break;
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}
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}
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GST_OBJECT_UNLOCK (agg);
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return res;
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}
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|
||||
static GstCaps *
|
||||
gst_audio_aggregator_sink_getcaps (GstPad * pad, GstAggregator * agg,
|
||||
GstCaps * filter)
|
||||
{
|
||||
GstAudioAggregatorPad *first_configured_pad =
|
||||
gst_audio_aggregator_get_first_configured_pad (agg);
|
||||
GstCaps *sink_template_caps = gst_pad_get_pad_template_caps (pad);
|
||||
GstCaps *downstream_caps = gst_pad_get_allowed_caps (agg->srcpad);
|
||||
GstCaps *sink_caps;
|
||||
GstStructure *s, *s2;
|
||||
gint downstream_rate;
|
||||
|
||||
sink_template_caps = gst_caps_make_writable (sink_template_caps);
|
||||
s = gst_caps_get_structure (sink_template_caps, 0);
|
||||
|
||||
if (downstream_caps && !gst_caps_is_empty (downstream_caps))
|
||||
s2 = gst_caps_get_structure (downstream_caps, 0);
|
||||
else
|
||||
s2 = NULL;
|
||||
|
||||
if (s2 && gst_structure_get_int (s2, "rate", &downstream_rate)) {
|
||||
gst_structure_fixate_field_nearest_int (s, "rate", downstream_rate);
|
||||
} else if (first_configured_pad) {
|
||||
gst_structure_fixate_field_nearest_int (s, "rate",
|
||||
first_configured_pad->info.rate);
|
||||
}
|
||||
|
||||
if (first_configured_pad)
|
||||
gst_object_unref (first_configured_pad);
|
||||
|
||||
sink_caps = filter ? gst_caps_intersect (sink_template_caps,
|
||||
filter) : gst_caps_ref (sink_template_caps);
|
||||
|
||||
GST_INFO_OBJECT (pad, "Getting caps with filter %" GST_PTR_FORMAT, filter);
|
||||
GST_DEBUG_OBJECT (pad, "sink template caps : %" GST_PTR_FORMAT,
|
||||
sink_template_caps);
|
||||
GST_DEBUG_OBJECT (pad, "downstream caps %" GST_PTR_FORMAT, downstream_caps);
|
||||
GST_INFO_OBJECT (pad, "returned sink caps : %" GST_PTR_FORMAT, sink_caps);
|
||||
|
||||
gst_caps_unref (sink_template_caps);
|
||||
|
||||
if (downstream_caps)
|
||||
gst_caps_unref (downstream_caps);
|
||||
|
||||
return sink_caps;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_audio_aggregator_sink_setcaps (GstAudioAggregatorPad * aaggpad,
|
||||
GstAggregator * agg, GstCaps * caps)
|
||||
{
|
||||
GstAudioAggregatorPad *first_configured_pad =
|
||||
gst_audio_aggregator_get_first_configured_pad (agg);
|
||||
GstCaps *downstream_caps = gst_pad_get_allowed_caps (agg->srcpad);
|
||||
GstAudioInfo info;
|
||||
gboolean ret = TRUE;
|
||||
gint downstream_rate;
|
||||
GstStructure *s;
|
||||
|
||||
if (!downstream_caps || gst_caps_is_empty (downstream_caps)) {
|
||||
ret = FALSE;
|
||||
goto done;
|
||||
}
|
||||
|
||||
gst_audio_info_from_caps (&info, caps);
|
||||
s = gst_caps_get_structure (downstream_caps, 0);
|
||||
|
||||
/* TODO: handle different rates on sinkpads, a bit complex
|
||||
* because offsets will have to be updated, and audio resampling
|
||||
* has a latency to take into account
|
||||
*/
|
||||
if ((gst_structure_get_int (s, "rate", &downstream_rate)
|
||||
&& info.rate != downstream_rate) || (first_configured_pad
|
||||
&& info.rate != first_configured_pad->info.rate)) {
|
||||
gst_pad_push_event (GST_PAD (aaggpad), gst_event_new_reconfigure ());
|
||||
gst_object_unref (first_configured_pad);
|
||||
ret = FALSE;
|
||||
} else {
|
||||
GST_OBJECT_LOCK (aaggpad);
|
||||
gst_audio_info_from_caps (&aaggpad->info, caps);
|
||||
if (GST_IS_AUDIO_AGGREGATOR_CONVERT_PAD (aaggpad))
|
||||
GST_AUDIO_AGGREGATOR_CONVERT_PAD (aaggpad)->
|
||||
priv->converter_config_changed = TRUE;
|
||||
GST_OBJECT_UNLOCK (aaggpad);
|
||||
}
|
||||
|
||||
done:
|
||||
if (downstream_caps)
|
||||
gst_caps_unref (downstream_caps);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_audio_aggregator_update_src_caps (GstAggregator * agg,
|
||||
GstCaps * caps, GstCaps ** ret)
|
||||
{
|
||||
GstCaps *src_template_caps = gst_pad_get_pad_template_caps (agg->srcpad);
|
||||
GstCaps *downstream_caps =
|
||||
gst_pad_peer_query_caps (agg->srcpad, src_template_caps);
|
||||
|
||||
gst_caps_unref (src_template_caps);
|
||||
|
||||
*ret = gst_caps_intersect (caps, downstream_caps);
|
||||
|
||||
GST_INFO ("Updated src caps to %" GST_PTR_FORMAT, *ret);
|
||||
|
||||
if (downstream_caps)
|
||||
gst_caps_unref (downstream_caps);
|
||||
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
|
||||
/* At that point if the caps are not fixed, this means downstream
|
||||
* didn't have fully specified requirements, we'll just go ahead
|
||||
* and fixate raw audio fields using our first configured pad, we don't for
|
||||
* now need a more complicated heuristic
|
||||
*/
|
||||
static GstCaps *
|
||||
gst_audio_aggregator_fixate_src_caps (GstAggregator * agg, GstCaps * caps)
|
||||
{
|
||||
GstAudioAggregatorClass *aaggclass = GST_AUDIO_AGGREGATOR_GET_CLASS (agg);
|
||||
GstAudioAggregatorPad *first_configured_pad;
|
||||
|
||||
if (!aaggclass->convert_buffer)
|
||||
return
|
||||
GST_AGGREGATOR_CLASS
|
||||
(gst_audio_aggregator_parent_class)->fixate_src_caps (agg, caps);
|
||||
|
||||
first_configured_pad = gst_audio_aggregator_get_first_configured_pad (agg);
|
||||
|
||||
if (first_configured_pad) {
|
||||
GstStructure *s, *s2;
|
||||
GstCaps *first_configured_caps =
|
||||
gst_audio_info_to_caps (&first_configured_pad->info);
|
||||
gint first_configured_rate, first_configured_channels;
|
||||
|
||||
caps = gst_caps_make_writable (caps);
|
||||
s = gst_caps_get_structure (caps, 0);
|
||||
s2 = gst_caps_get_structure (first_configured_caps, 0);
|
||||
|
||||
gst_structure_get_int (s2, "rate", &first_configured_rate);
|
||||
gst_structure_get_int (s2, "channels", &first_configured_channels);
|
||||
|
||||
gst_structure_fixate_field_string (s, "format",
|
||||
gst_structure_get_string (s2, "format"));
|
||||
gst_structure_fixate_field_string (s, "layout",
|
||||
gst_structure_get_string (s2, "layout"));
|
||||
gst_structure_fixate_field_nearest_int (s, "rate", first_configured_rate);
|
||||
gst_structure_fixate_field_nearest_int (s, "channels",
|
||||
first_configured_channels);
|
||||
|
||||
gst_caps_unref (first_configured_caps);
|
||||
gst_object_unref (first_configured_pad);
|
||||
}
|
||||
|
||||
if (!gst_caps_is_fixed (caps))
|
||||
caps = gst_caps_fixate (caps);
|
||||
|
||||
GST_INFO_OBJECT (agg, "Fixated src caps to %" GST_PTR_FORMAT, caps);
|
||||
|
||||
return caps;
|
||||
}
|
||||
|
||||
/* Must be called with OBJECT_LOCK taken */
|
||||
static void
|
||||
gst_audio_aggregator_update_converters (GstAudioAggregator * aagg,
|
||||
GstAudioInfo * new_info)
|
||||
{
|
||||
GList *l;
|
||||
|
||||
for (l = GST_ELEMENT (aagg)->sinkpads; l; l = l->next) {
|
||||
GstAudioAggregatorPad *aaggpad = l->data;
|
||||
|
||||
if (GST_IS_AUDIO_AGGREGATOR_CONVERT_PAD (aaggpad))
|
||||
GST_AUDIO_AGGREGATOR_CONVERT_PAD (aaggpad)->
|
||||
priv->converter_config_changed = TRUE;
|
||||
|
||||
/* If we currently were mixing a buffer, we need to convert it to the new
|
||||
* format */
|
||||
if (aaggpad->priv->buffer) {
|
||||
GstBuffer *new_converted_buffer =
|
||||
gst_audio_aggregator_convert_buffer (aagg, GST_PAD (aaggpad),
|
||||
&aaggpad->info, new_info, aaggpad->priv->input_buffer);
|
||||
gst_buffer_replace (&aaggpad->priv->buffer, new_converted_buffer);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* We now have our final output caps, we can create the required converters */
|
||||
static gboolean
|
||||
gst_audio_aggregator_negotiated_src_caps (GstAggregator * agg, GstCaps * caps)
|
||||
{
|
||||
GstAudioAggregator *aagg = GST_AUDIO_AGGREGATOR (agg);
|
||||
GstAudioAggregatorClass *aaggclass = GST_AUDIO_AGGREGATOR_GET_CLASS (agg);
|
||||
GstAudioInfo info;
|
||||
|
||||
GST_INFO_OBJECT (agg, "src caps negotiated %" GST_PTR_FORMAT, caps);
|
||||
|
||||
if (!gst_audio_info_from_caps (&info, caps)) {
|
||||
GST_WARNING_OBJECT (aagg, "Rejecting invalid caps: %" GST_PTR_FORMAT, caps);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
GST_AUDIO_AGGREGATOR_LOCK (aagg);
|
||||
GST_OBJECT_LOCK (aagg);
|
||||
|
||||
if (aaggclass->convert_buffer) {
|
||||
gst_audio_aggregator_update_converters (aagg, &info);
|
||||
|
||||
if (aagg->priv->current_buffer
|
||||
&& !gst_audio_info_is_equal (&aagg->info, &info)) {
|
||||
GstBuffer *converted =
|
||||
gst_audio_aggregator_convert_buffer (aagg, agg->srcpad, &aagg->info,
|
||||
&info, aagg->priv->current_buffer);
|
||||
gst_buffer_unref (aagg->priv->current_buffer);
|
||||
aagg->priv->current_buffer = converted;
|
||||
}
|
||||
}
|
||||
|
||||
if (!gst_audio_info_is_equal (&info, &aagg->info)) {
|
||||
GST_INFO_OBJECT (aagg, "setting caps to %" GST_PTR_FORMAT, caps);
|
||||
gst_caps_replace (&aagg->current_caps, caps);
|
||||
|
||||
memcpy (&aagg->info, &info, sizeof (info));
|
||||
}
|
||||
|
||||
GST_OBJECT_UNLOCK (aagg);
|
||||
GST_AUDIO_AGGREGATOR_UNLOCK (aagg);
|
||||
|
||||
return
|
||||
GST_AGGREGATOR_CLASS
|
||||
(gst_audio_aggregator_parent_class)->negotiated_src_caps (agg, caps);
|
||||
}
|
||||
|
||||
/* event handling */
|
||||
|
||||
|
|
@ -439,6 +980,7 @@ static gboolean
|
|||
gst_audio_aggregator_sink_event (GstAggregator * agg,
|
||||
GstAggregatorPad * aggpad, GstEvent * event)
|
||||
{
|
||||
GstAudioAggregatorPad *aaggpad = GST_AUDIO_AGGREGATOR_PAD (aggpad);
|
||||
gboolean res = TRUE;
|
||||
|
||||
GST_DEBUG_OBJECT (aggpad, "Got %s event on sink pad",
|
||||
|
|
@ -484,6 +1026,17 @@ gst_audio_aggregator_sink_event (GstAggregator * agg,
|
|||
|
||||
break;
|
||||
}
|
||||
case GST_EVENT_CAPS:
|
||||
{
|
||||
GstCaps *caps;
|
||||
|
||||
gst_event_parse_caps (event, &caps);
|
||||
GST_INFO_OBJECT (aggpad, "Got caps %" GST_PTR_FORMAT, caps);
|
||||
res = gst_audio_aggregator_sink_setcaps (aaggpad, agg, caps);
|
||||
gst_event_unref (event);
|
||||
event = NULL;
|
||||
break;
|
||||
}
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
|
@ -496,6 +1049,35 @@ gst_audio_aggregator_sink_event (GstAggregator * agg,
|
|||
return res;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_audio_aggregator_sink_query (GstAggregator * agg, GstAggregatorPad * aggpad,
|
||||
GstQuery * query)
|
||||
{
|
||||
gboolean res = FALSE;
|
||||
|
||||
switch (GST_QUERY_TYPE (query)) {
|
||||
case GST_QUERY_CAPS:
|
||||
{
|
||||
GstCaps *filter, *caps;
|
||||
|
||||
gst_query_parse_caps (query, &filter);
|
||||
caps = gst_audio_aggregator_sink_getcaps (GST_PAD (aggpad), agg, filter);
|
||||
gst_query_set_caps_result (query, caps);
|
||||
gst_caps_unref (caps);
|
||||
res = TRUE;
|
||||
break;
|
||||
}
|
||||
default:
|
||||
res =
|
||||
GST_AGGREGATOR_CLASS (gst_audio_aggregator_parent_class)->sink_query
|
||||
(agg, aggpad, query);
|
||||
break;
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
|
||||
/* FIXME, the duration query should reflect how long you will produce
|
||||
* data, that is the amount of stream time until you will emit EOS.
|
||||
*
|
||||
|
|
@ -658,39 +1240,6 @@ gst_audio_aggregator_set_sink_caps (GstAudioAggregator * aagg,
|
|||
#endif
|
||||
}
|
||||
|
||||
|
||||
static gboolean
|
||||
gst_audio_aggregator_negotiated_src_caps (GstAggregator * agg, GstCaps * caps)
|
||||
{
|
||||
GstAudioAggregator *aagg = GST_AUDIO_AGGREGATOR (agg);
|
||||
GstAudioInfo info;
|
||||
|
||||
if (!gst_audio_info_from_caps (&info, caps)) {
|
||||
GST_WARNING_OBJECT (aagg, "Rejecting invalid caps: %" GST_PTR_FORMAT, caps);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
GST_AUDIO_AGGREGATOR_LOCK (aagg);
|
||||
GST_OBJECT_LOCK (aagg);
|
||||
|
||||
if (!gst_audio_info_is_equal (&info, &aagg->info)) {
|
||||
GST_INFO_OBJECT (aagg, "setting caps to %" GST_PTR_FORMAT, caps);
|
||||
gst_caps_replace (&aagg->current_caps, caps);
|
||||
|
||||
memcpy (&aagg->info, &info, sizeof (info));
|
||||
}
|
||||
|
||||
GST_OBJECT_UNLOCK (aagg);
|
||||
GST_AUDIO_AGGREGATOR_UNLOCK (aagg);
|
||||
|
||||
/* send caps event later, after stream-start event */
|
||||
|
||||
return
|
||||
GST_AGGREGATOR_CLASS
|
||||
(gst_audio_aggregator_parent_class)->negotiated_src_caps (agg, caps);
|
||||
}
|
||||
|
||||
|
||||
/* Must hold object lock and aagg lock to call */
|
||||
|
||||
static void
|
||||
|
|
@ -769,9 +1318,10 @@ gst_audio_aggregator_do_clip (GstAggregator * agg,
|
|||
* values.
|
||||
*/
|
||||
static gboolean
|
||||
gst_audio_aggregator_queue_new_buffer (GstAudioAggregator * aagg,
|
||||
GstAudioAggregatorPad * pad, GstBuffer * inbuf)
|
||||
gst_audio_aggregator_fill_buffer (GstAudioAggregator * aagg,
|
||||
GstAudioAggregatorPad * pad)
|
||||
{
|
||||
GstAudioAggregatorClass *aaggclass = GST_AUDIO_AGGREGATOR_GET_CLASS (aagg);
|
||||
GstClockTime start_time, end_time;
|
||||
gboolean discont = FALSE;
|
||||
guint64 start_offset, end_offset;
|
||||
|
|
@ -780,27 +1330,31 @@ gst_audio_aggregator_queue_new_buffer (GstAudioAggregator * aagg,
|
|||
GstAggregator *agg = GST_AGGREGATOR (aagg);
|
||||
GstAggregatorPad *aggpad = GST_AGGREGATOR_PAD (pad);
|
||||
|
||||
g_assert (pad->priv->buffer == NULL);
|
||||
|
||||
rate = GST_AUDIO_INFO_RATE (&pad->info);
|
||||
bpf = GST_AUDIO_INFO_BPF (&pad->info);
|
||||
if (aaggclass->convert_buffer) {
|
||||
rate = GST_AUDIO_INFO_RATE (&aagg->info);
|
||||
bpf = GST_AUDIO_INFO_BPF (&aagg->info);
|
||||
} else {
|
||||
rate = GST_AUDIO_INFO_RATE (&pad->info);
|
||||
bpf = GST_AUDIO_INFO_BPF (&pad->info);
|
||||
}
|
||||
|
||||
pad->priv->position = 0;
|
||||
pad->priv->size = gst_buffer_get_size (inbuf) / bpf;
|
||||
pad->priv->size = gst_buffer_get_size (pad->priv->buffer) / bpf;
|
||||
|
||||
if (pad->priv->size == 0) {
|
||||
if (!GST_BUFFER_DURATION_IS_VALID (inbuf) ||
|
||||
!GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_GAP)) {
|
||||
if (!GST_BUFFER_DURATION_IS_VALID (pad->priv->buffer) ||
|
||||
!GST_BUFFER_FLAG_IS_SET (pad->priv->buffer, GST_BUFFER_FLAG_GAP)) {
|
||||
GST_WARNING_OBJECT (pad, "Dropping 0-sized buffer missing either a"
|
||||
" duration or a GAP flag: %" GST_PTR_FORMAT, inbuf);
|
||||
" duration or a GAP flag: %" GST_PTR_FORMAT, pad->priv->buffer);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
pad->priv->size = gst_util_uint64_scale (GST_BUFFER_DURATION (inbuf), rate,
|
||||
pad->priv->size =
|
||||
gst_util_uint64_scale (GST_BUFFER_DURATION (pad->priv->buffer), rate,
|
||||
GST_SECOND);
|
||||
}
|
||||
|
||||
if (!GST_BUFFER_PTS_IS_VALID (inbuf)) {
|
||||
if (!GST_BUFFER_PTS_IS_VALID (pad->priv->buffer)) {
|
||||
if (pad->priv->output_offset == -1)
|
||||
pad->priv->output_offset = aagg->priv->offset;
|
||||
if (pad->priv->next_offset == -1)
|
||||
|
|
@ -810,7 +1364,7 @@ gst_audio_aggregator_queue_new_buffer (GstAudioAggregator * aagg,
|
|||
goto done;
|
||||
}
|
||||
|
||||
start_time = GST_BUFFER_PTS (inbuf);
|
||||
start_time = GST_BUFFER_PTS (pad->priv->buffer);
|
||||
end_time =
|
||||
start_time + gst_util_uint64_scale_ceil (pad->priv->size, GST_SECOND,
|
||||
rate);
|
||||
|
|
@ -823,8 +1377,8 @@ gst_audio_aggregator_queue_new_buffer (GstAudioAggregator * aagg,
|
|||
GST_SECOND);
|
||||
end_offset = start_offset + pad->priv->size;
|
||||
|
||||
if (GST_BUFFER_IS_DISCONT (inbuf)
|
||||
|| GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_RESYNC)
|
||||
if (GST_BUFFER_IS_DISCONT (pad->priv->buffer)
|
||||
|| GST_BUFFER_FLAG_IS_SET (pad->priv->buffer, GST_BUFFER_FLAG_RESYNC)
|
||||
|| pad->priv->new_segment || pad->priv->next_offset == -1) {
|
||||
discont = TRUE;
|
||||
pad->priv->new_segment = FALSE;
|
||||
|
|
@ -905,8 +1459,6 @@ gst_audio_aggregator_queue_new_buffer (GstAudioAggregator * aagg,
|
|||
|
||||
if (start_output_offset == -1 && end_output_offset == -1) {
|
||||
/* Outside output segment, drop */
|
||||
gst_buffer_unref (inbuf);
|
||||
pad->priv->buffer = NULL;
|
||||
pad->priv->position = 0;
|
||||
pad->priv->size = 0;
|
||||
pad->priv->output_offset = -1;
|
||||
|
|
@ -919,9 +1471,6 @@ gst_audio_aggregator_queue_new_buffer (GstAudioAggregator * aagg,
|
|||
end_output_offset = start_output_offset + pad->priv->size;
|
||||
|
||||
if (end_output_offset < aagg->priv->offset) {
|
||||
/* Before output segment, drop */
|
||||
gst_buffer_unref (inbuf);
|
||||
pad->priv->buffer = NULL;
|
||||
pad->priv->position = 0;
|
||||
pad->priv->size = 0;
|
||||
pad->priv->output_offset = -1;
|
||||
|
|
@ -950,8 +1499,6 @@ gst_audio_aggregator_queue_new_buffer (GstAudioAggregator * aagg,
|
|||
pad->priv->position += diff;
|
||||
if (pad->priv->position >= pad->priv->size) {
|
||||
/* Empty buffer, drop */
|
||||
gst_buffer_unref (inbuf);
|
||||
pad->priv->buffer = NULL;
|
||||
pad->priv->position = 0;
|
||||
pad->priv->size = 0;
|
||||
pad->priv->output_offset = -1;
|
||||
|
|
@ -978,7 +1525,6 @@ done:
|
|||
GST_LOG_OBJECT (pad,
|
||||
"Queued new buffer at offset %" G_GUINT64_FORMAT,
|
||||
pad->priv->output_offset);
|
||||
pad->priv->buffer = inbuf;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
|
@ -1013,6 +1559,7 @@ gst_audio_aggregator_mix_buffer (GstAudioAggregator * aagg,
|
|||
pad->priv->position = pad->priv->size;
|
||||
|
||||
gst_buffer_replace (&pad->priv->buffer, NULL);
|
||||
gst_buffer_replace (&pad->priv->input_buffer, NULL);
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
|
|
@ -1042,6 +1589,7 @@ gst_audio_aggregator_mix_buffer (GstAudioAggregator * aagg,
|
|||
if (pad->priv->position == pad->priv->size) {
|
||||
/* Buffer done, drop it */
|
||||
gst_buffer_replace (&pad->priv->buffer, NULL);
|
||||
gst_buffer_replace (&pad->priv->input_buffer, NULL);
|
||||
GST_LOG_OBJECT (pad, "Finished mixing buffer, waiting for next");
|
||||
return FALSE;
|
||||
}
|
||||
|
|
@ -1060,6 +1608,9 @@ gst_audio_aggregator_create_output_buffer (GstAudioAggregator * aagg,
|
|||
|
||||
gst_aggregator_get_allocator (GST_AGGREGATOR (aagg), &allocator, ¶ms);
|
||||
|
||||
GST_DEBUG ("Creating output buffer with size %d",
|
||||
num_frames * GST_AUDIO_INFO_BPF (&aagg->info));
|
||||
|
||||
outbuf = gst_buffer_new_allocate (allocator, num_frames *
|
||||
GST_AUDIO_INFO_BPF (&aagg->info), ¶ms);
|
||||
|
||||
|
|
@ -1220,7 +1771,6 @@ gst_audio_aggregator_aggregate (GstAggregator * agg, gboolean timeout)
|
|||
aagg->priv->offset, GST_TIME_ARGS (agg->segment.position));
|
||||
|
||||
for (iter = element->sinkpads; iter; iter = iter->next) {
|
||||
GstBuffer *inbuf;
|
||||
GstAudioAggregatorPad *pad = (GstAudioAggregatorPad *) iter->data;
|
||||
GstAggregatorPad *aggpad = (GstAggregatorPad *) iter->data;
|
||||
gboolean pad_eos = gst_aggregator_pad_is_eos (aggpad);
|
||||
|
|
@ -1228,10 +1778,10 @@ gst_audio_aggregator_aggregate (GstAggregator * agg, gboolean timeout)
|
|||
if (!pad_eos)
|
||||
is_eos = FALSE;
|
||||
|
||||
inbuf = gst_aggregator_pad_get_buffer (aggpad);
|
||||
pad->priv->input_buffer = gst_aggregator_pad_get_buffer (aggpad);
|
||||
|
||||
GST_OBJECT_LOCK (pad);
|
||||
if (!inbuf) {
|
||||
if (!pad->priv->input_buffer) {
|
||||
if (timeout) {
|
||||
if (pad->priv->output_offset < next_offset) {
|
||||
gint64 diff = next_offset - pad->priv->output_offset;
|
||||
|
|
@ -1247,19 +1797,28 @@ gst_audio_aggregator_aggregate (GstAggregator * agg, gboolean timeout)
|
|||
continue;
|
||||
}
|
||||
|
||||
g_assert (!pad->priv->buffer || pad->priv->buffer == inbuf);
|
||||
|
||||
/* New buffer? */
|
||||
if (!pad->priv->buffer) {
|
||||
/* Takes ownership of buffer */
|
||||
if (!gst_audio_aggregator_queue_new_buffer (aagg, pad, inbuf)) {
|
||||
if (GST_IS_AUDIO_AGGREGATOR_CONVERT_PAD (pad))
|
||||
pad->priv->buffer =
|
||||
gst_audio_aggregator_convert_buffer
|
||||
(aagg, GST_PAD (pad), &pad->info, &aagg->info,
|
||||
pad->priv->input_buffer);
|
||||
else
|
||||
pad->priv->buffer = gst_buffer_ref (pad->priv->input_buffer);
|
||||
|
||||
if (!gst_audio_aggregator_fill_buffer (aagg, pad)) {
|
||||
gst_buffer_replace (&pad->priv->buffer, NULL);
|
||||
gst_buffer_replace (&pad->priv->input_buffer, NULL);
|
||||
pad->priv->buffer = NULL;
|
||||
dropped = TRUE;
|
||||
GST_OBJECT_UNLOCK (pad);
|
||||
|
||||
gst_aggregator_pad_drop_buffer (aggpad);
|
||||
continue;
|
||||
}
|
||||
} else {
|
||||
gst_buffer_unref (inbuf);
|
||||
gst_buffer_unref (pad->priv->input_buffer);
|
||||
}
|
||||
|
||||
if (!pad->priv->buffer && !dropped && pad_eos) {
|
||||
|
|
@ -1288,6 +1847,7 @@ gst_audio_aggregator_aggregate (GstAggregator * agg, gboolean timeout)
|
|||
GST_AUDIO_INFO_RATE (&aagg->info))), pad->priv->buffer);
|
||||
/* Buffer done, drop it */
|
||||
gst_buffer_replace (&pad->priv->buffer, NULL);
|
||||
gst_buffer_replace (&pad->priv->input_buffer, NULL);
|
||||
dropped = TRUE;
|
||||
GST_OBJECT_UNLOCK (pad);
|
||||
gst_aggregator_pad_drop_buffer (aggpad);
|
||||
|
|
|
|||
|
|
@ -67,7 +67,7 @@ typedef struct _GstAudioAggregatorPadPrivate GstAudioAggregatorPadPrivate;
|
|||
* @parent: The parent #GstAggregatorPad
|
||||
* @info: The audio info for this pad set from the incoming caps
|
||||
*
|
||||
* The implementation the GstPad to use with #GstAudioAggregator
|
||||
* The default implementation of GstPad used with #GstAudioAggregator
|
||||
*/
|
||||
struct _GstAudioAggregatorPad
|
||||
{
|
||||
|
|
@ -86,7 +86,7 @@ struct _GstAudioAggregatorPad
|
|||
*
|
||||
*/
|
||||
struct _GstAudioAggregatorPadClass
|
||||
{
|
||||
{
|
||||
GstAggregatorPadClass parent_class;
|
||||
|
||||
/*< private >*/
|
||||
|
|
@ -96,6 +96,54 @@ struct _GstAudioAggregatorPadClass
|
|||
GST_EXPORT
|
||||
GType gst_audio_aggregator_pad_get_type (void);
|
||||
|
||||
#define GST_TYPE_AUDIO_AGGREGATOR_CONVERT_PAD (gst_audio_aggregator_convert_pad_get_type())
|
||||
#define GST_AUDIO_AGGREGATOR_CONVERT_PAD(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_AGGREGATOR_CONVERT_PAD, GstAudioAggregatorConvertPad))
|
||||
#define GST_AUDIO_AGGREGATOR_CONVERT_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_AGGREGATOR_CONVERT_PAD, GstAudioAggregatorConvertPadClass))
|
||||
#define GST_AUDIO_AGGREGATOR_CONVERT_PAD_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_AUDIO_AGGREGATOR_CONVERT_PAD, GstAudioAggregatorConvertPadClass))
|
||||
#define GST_IS_AUDIO_AGGREGATOR_CONVERT_PAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_AGGREGATOR_CONVERT_PAD))
|
||||
#define GST_IS_AUDIO_AGGREGATOR_CONVERT_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_AGGREGATOR_CONVERT_PAD))
|
||||
|
||||
/****************************
|
||||
* GstAudioAggregatorPad Structs *
|
||||
***************************/
|
||||
|
||||
typedef struct _GstAudioAggregatorConvertPad GstAudioAggregatorConvertPad;
|
||||
typedef struct _GstAudioAggregatorConvertPadClass GstAudioAggregatorConvertPadClass;
|
||||
typedef struct _GstAudioAggregatorConvertPadPrivate GstAudioAggregatorConvertPadPrivate;
|
||||
|
||||
/**
|
||||
* GstAudioAggregatorConvertPad:
|
||||
* @parent: The parent #GstAudioAggregatorPad
|
||||
*
|
||||
* An implementation of GstPad that can be used with #GstAudioAggregator.
|
||||
*
|
||||
* See #GstAudioAggregator for more details.
|
||||
*/
|
||||
struct _GstAudioAggregatorConvertPad
|
||||
{
|
||||
GstAudioAggregatorPad parent;
|
||||
|
||||
/*< private >*/
|
||||
GstAudioAggregatorConvertPadPrivate * priv;
|
||||
|
||||
gpointer _gst_reserved[GST_PADDING];
|
||||
};
|
||||
|
||||
/**
|
||||
* GstAudioAggregatorConvertPadClass:
|
||||
*
|
||||
*/
|
||||
struct _GstAudioAggregatorConvertPadClass
|
||||
{
|
||||
GstAudioAggregatorPadClass parent_class;
|
||||
|
||||
/*< private >*/
|
||||
gpointer _gst_reserved[GST_PADDING];
|
||||
};
|
||||
|
||||
GST_EXPORT
|
||||
GType gst_audio_aggregator_convert_pad_get_type (void);
|
||||
|
||||
/**************************
|
||||
* GstAudioAggregator API *
|
||||
**************************/
|
||||
|
|
@ -137,6 +185,10 @@ struct _GstAudioAggregator
|
|||
* buffer. The in_offset and out_offset are in "frames", which is
|
||||
* the size of a sample times the number of channels. Returns TRUE if
|
||||
* any non-silence was added to the buffer
|
||||
* @convert_buffer: Convert a buffer from one format to another. The pad
|
||||
* is either a sinkpad, when converting an input buffer, or the source pad,
|
||||
* when converting the output buffer after a downstream format change is
|
||||
* requested.
|
||||
*/
|
||||
struct _GstAudioAggregatorClass {
|
||||
GstAggregatorClass parent_class;
|
||||
|
|
@ -146,6 +198,11 @@ struct _GstAudioAggregatorClass {
|
|||
gboolean (* aggregate_one_buffer) (GstAudioAggregator * aagg,
|
||||
GstAudioAggregatorPad * pad, GstBuffer * inbuf, guint in_offset,
|
||||
GstBuffer * outbuf, guint out_offset, guint num_frames);
|
||||
GstBuffer * (* convert_buffer) (GstAudioAggregator *aagg,
|
||||
GstPad * pad,
|
||||
GstAudioInfo *in_info,
|
||||
GstAudioInfo *out_info,
|
||||
GstBuffer * buffer);
|
||||
|
||||
/*< private >*/
|
||||
gpointer _gst_reserved[GST_PADDING_LARGE];
|
||||
|
|
@ -163,6 +220,9 @@ void gst_audio_aggregator_set_sink_caps (GstAudioAggregator * aagg,
|
|||
GstAudioAggregatorPad * pad,
|
||||
GstCaps * caps);
|
||||
|
||||
GST_EXPORT
|
||||
void gst_audio_aggregator_class_perform_conversion (GstAudioAggregatorClass * klass);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_AUDIO_AGGREGATOR_H__ */
|
||||
|
|
|
|||
|
|
@ -580,7 +580,7 @@ gst_audio_interleave_class_init (GstAudioInterleaveClass * klass)
|
|||
agg_class->negotiated_src_caps = gst_audio_interleave_negotiated_src_caps;
|
||||
|
||||
aagg_class->aggregate_one_buffer = gst_audio_interleave_aggregate_one_buffer;
|
||||
|
||||
aagg_class->convert_buffer = NULL;
|
||||
|
||||
/**
|
||||
* GstInterleave:channel-positions
|
||||
|
|
|
|||
|
|
@ -31,12 +31,17 @@
|
|||
* Unlike the adder element audiomixer properly synchronises all input streams
|
||||
* and also handles live inputs such as capture sources or RTP properly.
|
||||
*
|
||||
* Caps negotiation is inherently racy with the audiomixer element. You can set
|
||||
* the "caps" property to force audiomixer to operate in a specific audio
|
||||
* format, sample rate and channel count. In this case you may also need
|
||||
* audioconvert and/or audioresample elements for each input stream before the
|
||||
* audiomixer element to make sure the input branch can produce the forced
|
||||
* format.
|
||||
* The audiomixer element can accept any sort of raw audio data, it will
|
||||
* be converted to the target format if necessary, with the exception
|
||||
* of the sample rate, which has to be identical to either what downstream
|
||||
* expects, or the sample rate of the first configured pad. Use a capsfilter
|
||||
* after the audiomixer element if you want to precisely control the format
|
||||
* that comes out of the audiomixer, which supports changing the format of
|
||||
* its output while playing.
|
||||
*
|
||||
* If you want to control the manner in which incoming data gets converted,
|
||||
* see the #GstAudioAggregatorPad:converter-config property, which will let
|
||||
* you for example change the way in which channels may get remapped.
|
||||
*
|
||||
* The input pads are from a GstPad subclass and have additional
|
||||
* properties to mute each pad individually and set the volume:
|
||||
|
|
@ -89,7 +94,7 @@ enum
|
|||
};
|
||||
|
||||
G_DEFINE_TYPE (GstAudioMixerPad, gst_audiomixer_pad,
|
||||
GST_TYPE_AUDIO_AGGREGATOR_PAD);
|
||||
GST_TYPE_AUDIO_AGGREGATOR_CONVERT_PAD);
|
||||
|
||||
static void
|
||||
gst_audiomixer_pad_get_property (GObject * object, guint prop_id,
|
||||
|
|
@ -163,20 +168,19 @@ gst_audiomixer_pad_init (GstAudioMixerPad * pad)
|
|||
|
||||
enum
|
||||
{
|
||||
PROP_0,
|
||||
PROP_FILTER_CAPS
|
||||
PROP_0
|
||||
};
|
||||
|
||||
/* elementfactory information */
|
||||
/* These are the formats we can mix natively */
|
||||
|
||||
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
|
||||
#define CAPS \
|
||||
GST_AUDIO_CAPS_MAKE ("{ S32LE, U32LE, S16LE, U16LE, S8, U8, F32LE, F64LE }") \
|
||||
", layout = (string) { interleaved, non-interleaved }"
|
||||
", layout = interleaved"
|
||||
#else
|
||||
#define CAPS \
|
||||
GST_AUDIO_CAPS_MAKE ("{ S32BE, U32BE, S16BE, U16BE, S8, U8, F32BE, F64BE }") \
|
||||
", layout = (string) { interleaved, non-interleaved }"
|
||||
", layout = interleaved"
|
||||
#endif
|
||||
|
||||
static GstStaticPadTemplate gst_audiomixer_src_template =
|
||||
|
|
@ -186,12 +190,15 @@ GST_STATIC_PAD_TEMPLATE ("src",
|
|||
GST_STATIC_CAPS (CAPS)
|
||||
);
|
||||
|
||||
#define SINK_CAPS \
|
||||
GST_STATIC_CAPS (GST_AUDIO_CAPS_MAKE (GST_AUDIO_FORMATS_ALL) \
|
||||
", layout=interleaved")
|
||||
|
||||
static GstStaticPadTemplate gst_audiomixer_sink_template =
|
||||
GST_STATIC_PAD_TEMPLATE ("sink_%u",
|
||||
GST_PAD_SINK,
|
||||
GST_PAD_REQUEST,
|
||||
GST_STATIC_CAPS (CAPS)
|
||||
);
|
||||
SINK_CAPS);
|
||||
|
||||
static void gst_audiomixer_child_proxy_init (gpointer g_iface,
|
||||
gpointer iface_data);
|
||||
|
|
@ -201,14 +208,6 @@ G_DEFINE_TYPE_WITH_CODE (GstAudioMixer, gst_audiomixer,
|
|||
GST_TYPE_AUDIO_AGGREGATOR, G_IMPLEMENT_INTERFACE (GST_TYPE_CHILD_PROXY,
|
||||
gst_audiomixer_child_proxy_init));
|
||||
|
||||
static void gst_audiomixer_dispose (GObject * object);
|
||||
static void gst_audiomixer_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec);
|
||||
static void gst_audiomixer_get_property (GObject * object, guint prop_id,
|
||||
GValue * value, GParamSpec * pspec);
|
||||
|
||||
static gboolean gst_audiomixer_setcaps (GstAudioMixer * audiomixer,
|
||||
GstPad * pad, GstCaps * caps);
|
||||
static GstPad *gst_audiomixer_request_new_pad (GstElement * element,
|
||||
GstPadTemplate * temp, const gchar * req_name, const GstCaps * caps);
|
||||
static void gst_audiomixer_release_pad (GstElement * element, GstPad * pad);
|
||||
|
|
@ -219,287 +218,12 @@ gst_audiomixer_aggregate_one_buffer (GstAudioAggregator * aagg,
|
|||
GstBuffer * outbuf, guint out_offset, guint num_samples);
|
||||
|
||||
|
||||
/* we can only accept caps that we and downstream can handle.
|
||||
* if we have filtercaps set, use those to constrain the target caps.
|
||||
*/
|
||||
static GstCaps *
|
||||
gst_audiomixer_sink_getcaps (GstAggregator * agg, GstPad * pad,
|
||||
GstCaps * filter)
|
||||
{
|
||||
GstAudioAggregator *aagg;
|
||||
GstAudioMixer *audiomixer;
|
||||
GstCaps *result, *peercaps, *current_caps, *filter_caps;
|
||||
GstStructure *s;
|
||||
gint i, n;
|
||||
|
||||
audiomixer = GST_AUDIO_MIXER (agg);
|
||||
aagg = GST_AUDIO_AGGREGATOR (agg);
|
||||
|
||||
GST_OBJECT_LOCK (audiomixer);
|
||||
/* take filter */
|
||||
if ((filter_caps = audiomixer->filter_caps)) {
|
||||
if (filter)
|
||||
filter_caps =
|
||||
gst_caps_intersect_full (filter, filter_caps,
|
||||
GST_CAPS_INTERSECT_FIRST);
|
||||
else
|
||||
gst_caps_ref (filter_caps);
|
||||
} else {
|
||||
filter_caps = filter ? gst_caps_ref (filter) : NULL;
|
||||
}
|
||||
GST_OBJECT_UNLOCK (audiomixer);
|
||||
|
||||
if (filter_caps && gst_caps_is_empty (filter_caps)) {
|
||||
GST_WARNING_OBJECT (pad, "Empty filter caps");
|
||||
return filter_caps;
|
||||
}
|
||||
|
||||
/* get the downstream possible caps */
|
||||
peercaps = gst_pad_peer_query_caps (agg->srcpad, filter_caps);
|
||||
|
||||
/* get the allowed caps on this sinkpad */
|
||||
GST_OBJECT_LOCK (audiomixer);
|
||||
current_caps = aagg->current_caps ? gst_caps_ref (aagg->current_caps) : NULL;
|
||||
if (current_caps == NULL) {
|
||||
current_caps = gst_pad_get_pad_template_caps (pad);
|
||||
if (!current_caps)
|
||||
current_caps = gst_caps_new_any ();
|
||||
}
|
||||
GST_OBJECT_UNLOCK (audiomixer);
|
||||
|
||||
if (peercaps) {
|
||||
/* if the peer has caps, intersect */
|
||||
GST_DEBUG_OBJECT (audiomixer, "intersecting peer and our caps");
|
||||
result =
|
||||
gst_caps_intersect_full (peercaps, current_caps,
|
||||
GST_CAPS_INTERSECT_FIRST);
|
||||
gst_caps_unref (peercaps);
|
||||
gst_caps_unref (current_caps);
|
||||
} else {
|
||||
/* the peer has no caps (or there is no peer), just use the allowed caps
|
||||
* of this sinkpad. */
|
||||
/* restrict with filter-caps if any */
|
||||
if (filter_caps) {
|
||||
GST_DEBUG_OBJECT (audiomixer, "no peer caps, using filtered caps");
|
||||
result =
|
||||
gst_caps_intersect_full (filter_caps, current_caps,
|
||||
GST_CAPS_INTERSECT_FIRST);
|
||||
gst_caps_unref (current_caps);
|
||||
} else {
|
||||
GST_DEBUG_OBJECT (audiomixer, "no peer caps, using our caps");
|
||||
result = current_caps;
|
||||
}
|
||||
}
|
||||
|
||||
result = gst_caps_make_writable (result);
|
||||
|
||||
n = gst_caps_get_size (result);
|
||||
for (i = 0; i < n; i++) {
|
||||
GstStructure *sref;
|
||||
|
||||
s = gst_caps_get_structure (result, i);
|
||||
sref = gst_structure_copy (s);
|
||||
gst_structure_set (sref, "channels", GST_TYPE_INT_RANGE, 0, 2, NULL);
|
||||
if (gst_structure_is_subset (s, sref)) {
|
||||
/* This field is irrelevant when in mono or stereo */
|
||||
gst_structure_remove_field (s, "channel-mask");
|
||||
}
|
||||
gst_structure_free (sref);
|
||||
}
|
||||
|
||||
if (filter_caps)
|
||||
gst_caps_unref (filter_caps);
|
||||
|
||||
GST_LOG_OBJECT (audiomixer, "getting caps on pad %p,%s to %" GST_PTR_FORMAT,
|
||||
pad, GST_PAD_NAME (pad), result);
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_audiomixer_sink_query (GstAggregator * agg, GstAggregatorPad * aggpad,
|
||||
GstQuery * query)
|
||||
{
|
||||
gboolean res = FALSE;
|
||||
|
||||
switch (GST_QUERY_TYPE (query)) {
|
||||
case GST_QUERY_CAPS:
|
||||
{
|
||||
GstCaps *filter, *caps;
|
||||
|
||||
gst_query_parse_caps (query, &filter);
|
||||
caps = gst_audiomixer_sink_getcaps (agg, GST_PAD (aggpad), filter);
|
||||
gst_query_set_caps_result (query, caps);
|
||||
gst_caps_unref (caps);
|
||||
res = TRUE;
|
||||
break;
|
||||
}
|
||||
default:
|
||||
res =
|
||||
GST_AGGREGATOR_CLASS (parent_class)->sink_query (agg, aggpad, query);
|
||||
break;
|
||||
}
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
/* the first caps we receive on any of the sinkpads will define the caps for all
|
||||
* the other sinkpads because we can only mix streams with the same caps.
|
||||
*/
|
||||
static gboolean
|
||||
gst_audiomixer_setcaps (GstAudioMixer * audiomixer, GstPad * pad,
|
||||
GstCaps * orig_caps)
|
||||
{
|
||||
GstAggregator *agg = GST_AGGREGATOR (audiomixer);
|
||||
GstAudioAggregator *aagg = GST_AUDIO_AGGREGATOR (audiomixer);
|
||||
GstCaps *caps;
|
||||
GstAudioInfo info;
|
||||
GstStructure *s;
|
||||
gint channels = 0;
|
||||
|
||||
caps = gst_caps_copy (orig_caps);
|
||||
|
||||
s = gst_caps_get_structure (caps, 0);
|
||||
if (gst_structure_get_int (s, "channels", &channels))
|
||||
if (channels <= 2)
|
||||
gst_structure_remove_field (s, "channel-mask");
|
||||
|
||||
if (!gst_audio_info_from_caps (&info, caps))
|
||||
goto invalid_format;
|
||||
|
||||
if (channels == 1) {
|
||||
GstCaps *filter;
|
||||
GstCaps *downstream_caps;
|
||||
|
||||
if (audiomixer->filter_caps)
|
||||
filter = gst_caps_intersect_full (caps, audiomixer->filter_caps,
|
||||
GST_CAPS_INTERSECT_FIRST);
|
||||
else
|
||||
filter = gst_caps_ref (caps);
|
||||
|
||||
downstream_caps = gst_pad_peer_query_caps (agg->srcpad, filter);
|
||||
gst_caps_unref (filter);
|
||||
|
||||
if (downstream_caps) {
|
||||
gst_caps_unref (caps);
|
||||
caps = downstream_caps;
|
||||
|
||||
if (gst_caps_is_empty (caps)) {
|
||||
gst_caps_unref (caps);
|
||||
return FALSE;
|
||||
}
|
||||
caps = gst_caps_fixate (caps);
|
||||
}
|
||||
}
|
||||
|
||||
GST_OBJECT_LOCK (audiomixer);
|
||||
/* don't allow reconfiguration for now; there's still a race between the
|
||||
* different upstream threads doing query_caps + accept_caps + sending
|
||||
* (possibly different) CAPS events, but there's not much we can do about
|
||||
* that, upstream needs to deal with it. */
|
||||
if (aagg->current_caps != NULL) {
|
||||
if (gst_audio_info_is_equal (&info, &aagg->info)) {
|
||||
GST_OBJECT_UNLOCK (audiomixer);
|
||||
gst_caps_unref (caps);
|
||||
gst_audio_aggregator_set_sink_caps (aagg, GST_AUDIO_AGGREGATOR_PAD (pad),
|
||||
orig_caps);
|
||||
return TRUE;
|
||||
} else {
|
||||
GST_DEBUG_OBJECT (pad, "got input caps %" GST_PTR_FORMAT ", but "
|
||||
"current caps are %" GST_PTR_FORMAT, caps, aagg->current_caps);
|
||||
GST_OBJECT_UNLOCK (audiomixer);
|
||||
gst_pad_push_event (pad, gst_event_new_reconfigure ());
|
||||
gst_caps_unref (caps);
|
||||
return FALSE;
|
||||
}
|
||||
} else {
|
||||
gst_caps_replace (&aagg->current_caps, caps);
|
||||
aagg->info = info;
|
||||
gst_pad_mark_reconfigure (GST_AGGREGATOR_SRC_PAD (agg));
|
||||
}
|
||||
GST_OBJECT_UNLOCK (audiomixer);
|
||||
|
||||
gst_audio_aggregator_set_sink_caps (aagg, GST_AUDIO_AGGREGATOR_PAD (pad),
|
||||
orig_caps);
|
||||
|
||||
GST_INFO_OBJECT (pad, "handle caps change to %" GST_PTR_FORMAT, caps);
|
||||
|
||||
gst_caps_unref (caps);
|
||||
|
||||
return TRUE;
|
||||
|
||||
/* ERRORS */
|
||||
invalid_format:
|
||||
{
|
||||
gst_caps_unref (caps);
|
||||
GST_WARNING_OBJECT (audiomixer, "invalid format set as caps");
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_audiomixer_update_src_caps (GstAggregator * agg, GstCaps * caps,
|
||||
GstCaps ** ret)
|
||||
{
|
||||
GstAudioAggregator *aagg = GST_AUDIO_AGGREGATOR (agg);
|
||||
|
||||
if (aagg->current_caps == NULL)
|
||||
return GST_AGGREGATOR_FLOW_NEED_DATA;
|
||||
|
||||
*ret = gst_caps_ref (aagg->current_caps);
|
||||
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_audiomixer_sink_event (GstAggregator * agg, GstAggregatorPad * aggpad,
|
||||
GstEvent * event)
|
||||
{
|
||||
GstAudioMixer *audiomixer = GST_AUDIO_MIXER (agg);
|
||||
gboolean res = TRUE;
|
||||
|
||||
GST_DEBUG_OBJECT (aggpad, "Got %s event on sink pad",
|
||||
GST_EVENT_TYPE_NAME (event));
|
||||
|
||||
switch (GST_EVENT_TYPE (event)) {
|
||||
case GST_EVENT_CAPS:
|
||||
{
|
||||
GstCaps *caps;
|
||||
|
||||
gst_event_parse_caps (event, &caps);
|
||||
res = gst_audiomixer_setcaps (audiomixer, GST_PAD_CAST (aggpad), caps);
|
||||
gst_event_unref (event);
|
||||
event = NULL;
|
||||
break;
|
||||
}
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
if (event != NULL)
|
||||
return GST_AGGREGATOR_CLASS (parent_class)->sink_event (agg, aggpad, event);
|
||||
|
||||
return res;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audiomixer_class_init (GstAudioMixerClass * klass)
|
||||
{
|
||||
GObjectClass *gobject_class = (GObjectClass *) klass;
|
||||
GstElementClass *gstelement_class = (GstElementClass *) klass;
|
||||
GstAggregatorClass *agg_class = (GstAggregatorClass *) klass;
|
||||
GstAudioAggregatorClass *aagg_class = (GstAudioAggregatorClass *) klass;
|
||||
|
||||
gobject_class->set_property = gst_audiomixer_set_property;
|
||||
gobject_class->get_property = gst_audiomixer_get_property;
|
||||
gobject_class->dispose = gst_audiomixer_dispose;
|
||||
|
||||
g_object_class_install_property (gobject_class, PROP_FILTER_CAPS,
|
||||
g_param_spec_boxed ("caps", "Target caps",
|
||||
"Set target format for mixing (NULL means ANY). "
|
||||
"Setting this property takes a reference to the supplied GstCaps "
|
||||
"object", GST_TYPE_CAPS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
||||
|
||||
gst_element_class_add_static_pad_template (gstelement_class,
|
||||
&gst_audiomixer_src_template);
|
||||
gst_element_class_add_static_pad_template_with_gtype (gstelement_class,
|
||||
|
|
@ -513,80 +237,12 @@ gst_audiomixer_class_init (GstAudioMixerClass * klass)
|
|||
gstelement_class->release_pad =
|
||||
GST_DEBUG_FUNCPTR (gst_audiomixer_release_pad);
|
||||
|
||||
agg_class->sink_query = GST_DEBUG_FUNCPTR (gst_audiomixer_sink_query);
|
||||
agg_class->sink_event = GST_DEBUG_FUNCPTR (gst_audiomixer_sink_event);
|
||||
agg_class->update_src_caps =
|
||||
GST_DEBUG_FUNCPTR (gst_audiomixer_update_src_caps);
|
||||
|
||||
aagg_class->aggregate_one_buffer = gst_audiomixer_aggregate_one_buffer;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audiomixer_init (GstAudioMixer * audiomixer)
|
||||
{
|
||||
audiomixer->filter_caps = NULL;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audiomixer_dispose (GObject * object)
|
||||
{
|
||||
GstAudioMixer *audiomixer = GST_AUDIO_MIXER (object);
|
||||
|
||||
gst_caps_replace (&audiomixer->filter_caps, NULL);
|
||||
|
||||
G_OBJECT_CLASS (parent_class)->dispose (object);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audiomixer_set_property (GObject * object, guint prop_id,
|
||||
const GValue * value, GParamSpec * pspec)
|
||||
{
|
||||
GstAudioMixer *audiomixer = GST_AUDIO_MIXER (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case PROP_FILTER_CAPS:{
|
||||
GstCaps *new_caps = NULL;
|
||||
GstCaps *old_caps;
|
||||
const GstCaps *new_caps_val = gst_value_get_caps (value);
|
||||
|
||||
if (new_caps_val != NULL) {
|
||||
new_caps = (GstCaps *) new_caps_val;
|
||||
gst_caps_ref (new_caps);
|
||||
}
|
||||
|
||||
GST_OBJECT_LOCK (audiomixer);
|
||||
old_caps = audiomixer->filter_caps;
|
||||
audiomixer->filter_caps = new_caps;
|
||||
GST_OBJECT_UNLOCK (audiomixer);
|
||||
|
||||
if (old_caps)
|
||||
gst_caps_unref (old_caps);
|
||||
|
||||
GST_DEBUG_OBJECT (audiomixer, "set new caps %" GST_PTR_FORMAT, new_caps);
|
||||
break;
|
||||
}
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_audiomixer_get_property (GObject * object, guint prop_id, GValue * value,
|
||||
GParamSpec * pspec)
|
||||
{
|
||||
GstAudioMixer *audiomixer = GST_AUDIO_MIXER (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case PROP_FILTER_CAPS:
|
||||
GST_OBJECT_LOCK (audiomixer);
|
||||
gst_value_set_caps (value, audiomixer->filter_caps);
|
||||
GST_OBJECT_UNLOCK (audiomixer);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static GstPad *
|
||||
|
|
|
|||
|
|
@ -50,9 +50,6 @@ typedef struct _GstAudioMixerPadClass GstAudioMixerPadClass;
|
|||
*/
|
||||
struct _GstAudioMixer {
|
||||
GstAudioAggregator element;
|
||||
|
||||
/* target caps (set via property) */
|
||||
GstCaps *filter_caps;
|
||||
};
|
||||
|
||||
struct _GstAudioMixerClass {
|
||||
|
|
@ -69,7 +66,7 @@ GType gst_audiomixer_get_type (void);
|
|||
#define GST_AUDIO_MIXER_PAD_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_MIXER_PAD,GstAudioMixerPadClass))
|
||||
|
||||
struct _GstAudioMixerPad {
|
||||
GstAudioAggregatorPad parent;
|
||||
GstAudioAggregatorConvertPad parent;
|
||||
|
||||
gdouble volume;
|
||||
gint volume_i32;
|
||||
|
|
@ -79,7 +76,7 @@ struct _GstAudioMixerPad {
|
|||
};
|
||||
|
||||
struct _GstAudioMixerPadClass {
|
||||
GstAudioAggregatorPadClass parent_class;
|
||||
GstAudioAggregatorConvertPadClass parent_class;
|
||||
};
|
||||
|
||||
GType gst_audiomixer_pad_get_type (void);
|
||||
|
|
|
|||
|
|
@ -59,7 +59,7 @@ test_teardown (void)
|
|||
/* some test helpers */
|
||||
|
||||
static GstElement *
|
||||
setup_pipeline (GstElement * audiomixer, gint num_srcs)
|
||||
setup_pipeline (GstElement * audiomixer, gint num_srcs, GstElement * capsfilter)
|
||||
{
|
||||
GstElement *pipeline, *src, *sink;
|
||||
gint i;
|
||||
|
|
@ -71,7 +71,13 @@ setup_pipeline (GstElement * audiomixer, gint num_srcs)
|
|||
|
||||
sink = gst_element_factory_make ("fakesink", "sink");
|
||||
gst_bin_add_many (GST_BIN (pipeline), audiomixer, sink, NULL);
|
||||
gst_element_link (audiomixer, sink);
|
||||
|
||||
if (capsfilter) {
|
||||
gst_bin_add (GST_BIN (pipeline), capsfilter);
|
||||
gst_element_link_many (audiomixer, capsfilter, sink, NULL);
|
||||
} else {
|
||||
gst_element_link (audiomixer, sink);
|
||||
}
|
||||
|
||||
for (i = 0; i < num_srcs; i++) {
|
||||
src = gst_element_factory_make ("audiotestsrc", NULL);
|
||||
|
|
@ -198,7 +204,7 @@ GST_START_TEST (test_caps)
|
|||
GstCaps *caps;
|
||||
|
||||
/* build pipeline */
|
||||
pipeline = setup_pipeline (NULL, 1);
|
||||
pipeline = setup_pipeline (NULL, 1, NULL);
|
||||
|
||||
/* prepare playing */
|
||||
set_state_and_wait (pipeline, GST_STATE_PAUSED);
|
||||
|
|
@ -217,7 +223,7 @@ GST_END_TEST;
|
|||
/* check that caps set on the property are honoured */
|
||||
GST_START_TEST (test_filter_caps)
|
||||
{
|
||||
GstElement *pipeline, *audiomixer;
|
||||
GstElement *pipeline, *audiomixer, *capsfilter;
|
||||
GstCaps *filter_caps, *caps;
|
||||
|
||||
filter_caps = gst_caps_new_simple ("audio/x-raw",
|
||||
|
|
@ -226,10 +232,12 @@ GST_START_TEST (test_filter_caps)
|
|||
"rate", G_TYPE_INT, 44100, "channels", G_TYPE_INT, 1,
|
||||
"channel-mask", GST_TYPE_BITMASK, (guint64) 0x04, NULL);
|
||||
|
||||
capsfilter = gst_element_factory_make ("capsfilter", NULL);
|
||||
|
||||
/* build pipeline */
|
||||
audiomixer = gst_element_factory_make ("audiomixer", NULL);
|
||||
g_object_set (audiomixer, "caps", filter_caps, NULL);
|
||||
pipeline = setup_pipeline (audiomixer, 1);
|
||||
g_object_set (capsfilter, "caps", filter_caps, NULL);
|
||||
pipeline = setup_pipeline (audiomixer, 1, capsfilter);
|
||||
|
||||
/* prepare playing */
|
||||
set_state_and_wait (pipeline, GST_STATE_PAUSED);
|
||||
|
|
@ -411,7 +419,7 @@ GST_START_TEST (test_play_twice)
|
|||
|
||||
/* build pipeline */
|
||||
audiomixer = gst_element_factory_make ("audiomixer", "audiomixer");
|
||||
bin = setup_pipeline (audiomixer, 2);
|
||||
bin = setup_pipeline (audiomixer, 2, NULL);
|
||||
bus = gst_element_get_bus (bin);
|
||||
gst_bus_add_signal_watch_full (bus, G_PRIORITY_HIGH);
|
||||
|
||||
|
|
@ -471,7 +479,7 @@ GST_START_TEST (test_play_twice_then_add_and_play_again)
|
|||
|
||||
/* build pipeline */
|
||||
audiomixer = gst_element_factory_make ("audiomixer", "audiomixer");
|
||||
bin = setup_pipeline (audiomixer, 2);
|
||||
bin = setup_pipeline (audiomixer, 2, NULL);
|
||||
bus = gst_element_get_bus (bin);
|
||||
gst_bus_add_signal_watch_full (bus, G_PRIORITY_HIGH);
|
||||
|
||||
|
|
@ -1098,7 +1106,7 @@ GST_START_TEST (test_loop)
|
|||
GST_INFO ("preparing test");
|
||||
|
||||
/* build pipeline */
|
||||
bin = setup_pipeline (NULL, 2);
|
||||
bin = setup_pipeline (NULL, 2, NULL);
|
||||
bus = gst_element_get_bus (bin);
|
||||
gst_bus_add_signal_watch_full (bus, G_PRIORITY_HIGH);
|
||||
|
||||
|
|
@ -1713,6 +1721,134 @@ GST_START_TEST (test_sinkpad_property_controller)
|
|||
|
||||
GST_END_TEST;
|
||||
|
||||
static void
|
||||
change_src_caps (GstElement * fakesink, GstBuffer * buffer, GstPad * pad,
|
||||
GstElement * capsfilter)
|
||||
{
|
||||
GstCaps *caps = gst_caps_new_simple ("audio/x-raw",
|
||||
"format", G_TYPE_STRING, GST_AUDIO_NE (S32),
|
||||
"layout", G_TYPE_STRING, "interleaved",
|
||||
"rate", G_TYPE_INT, 10, "channels", G_TYPE_INT, 1, NULL);
|
||||
|
||||
g_object_set (capsfilter, "caps", caps, NULL);
|
||||
g_signal_connect (fakesink, "handoff", (GCallback) handoff_buffer_cb, NULL);
|
||||
g_signal_handlers_disconnect_by_func (fakesink, change_src_caps, capsfilter);
|
||||
}
|
||||
|
||||
/* In this test, we create an input buffer with a duration of 2 seconds,
|
||||
* and require the audiomixer to output 1 second long buffers.
|
||||
* The input buffer will thus be mixed twice, and the audiomixer will
|
||||
* output two buffers.
|
||||
*
|
||||
* After audiomixer has output a first buffer, we change its output format
|
||||
* from S8 to S32. As our sample rate stays the same at 10 fps, and we use
|
||||
* mono, the first buffer should be 10 bytes long, and the second 40.
|
||||
*
|
||||
* The input buffer is made up of 15 0-valued bytes, and 5 1-valued bytes.
|
||||
* We verify that the second buffer contains 5 0-valued integers, and
|
||||
* 5 1 << 24 valued integers.
|
||||
*/
|
||||
GST_START_TEST (test_change_output_caps)
|
||||
{
|
||||
GstSegment segment;
|
||||
GstElement *bin, *audiomixer, *capsfilter, *sink;
|
||||
GstBus *bus;
|
||||
GstPad *sinkpad;
|
||||
gboolean res;
|
||||
GstStateChangeReturn state_res;
|
||||
GstFlowReturn ret;
|
||||
GstEvent *event;
|
||||
GstBuffer *buffer;
|
||||
GstCaps *caps;
|
||||
GstQuery *drain = gst_query_new_drain ();
|
||||
GstMapInfo inmap;
|
||||
GstMapInfo outmap;
|
||||
gsize i;
|
||||
|
||||
bin = gst_pipeline_new ("pipeline");
|
||||
bus = gst_element_get_bus (bin);
|
||||
gst_bus_add_signal_watch_full (bus, G_PRIORITY_HIGH);
|
||||
|
||||
g_signal_connect (bus, "message::error", (GCallback) message_received, bin);
|
||||
g_signal_connect (bus, "message::warning", (GCallback) message_received, bin);
|
||||
g_signal_connect (bus, "message::eos", (GCallback) message_received, bin);
|
||||
|
||||
audiomixer = gst_element_factory_make ("audiomixer", "audiomixer");
|
||||
g_object_set (audiomixer, "output-buffer-duration", GST_SECOND, NULL);
|
||||
capsfilter = gst_element_factory_make ("capsfilter", NULL);
|
||||
sink = gst_element_factory_make ("fakesink", "sink");
|
||||
g_object_set (sink, "signal-handoffs", TRUE, NULL);
|
||||
g_signal_connect (sink, "handoff", (GCallback) change_src_caps, capsfilter);
|
||||
gst_bin_add_many (GST_BIN (bin), audiomixer, capsfilter, sink, NULL);
|
||||
|
||||
res = gst_element_link_many (audiomixer, capsfilter, sink, NULL);
|
||||
fail_unless (res == TRUE, NULL);
|
||||
|
||||
state_res = gst_element_set_state (bin, GST_STATE_PLAYING);
|
||||
ck_assert_int_ne (state_res, GST_STATE_CHANGE_FAILURE);
|
||||
|
||||
sinkpad = gst_element_get_request_pad (audiomixer, "sink_%u");
|
||||
fail_if (sinkpad == NULL, NULL);
|
||||
|
||||
gst_pad_send_event (sinkpad, gst_event_new_stream_start ("test"));
|
||||
|
||||
caps = gst_caps_new_simple ("audio/x-raw",
|
||||
"format", G_TYPE_STRING, "S8",
|
||||
"layout", G_TYPE_STRING, "interleaved",
|
||||
"rate", G_TYPE_INT, 10, "channels", G_TYPE_INT, 1, NULL);
|
||||
|
||||
gst_pad_set_caps (sinkpad, caps);
|
||||
g_object_set (capsfilter, "caps", caps, NULL);
|
||||
gst_caps_unref (caps);
|
||||
|
||||
gst_segment_init (&segment, GST_FORMAT_TIME);
|
||||
segment.start = 0;
|
||||
segment.stop = 2 * GST_SECOND;
|
||||
segment.time = 0;
|
||||
event = gst_event_new_segment (&segment);
|
||||
gst_pad_send_event (sinkpad, event);
|
||||
|
||||
gst_buffer_replace (&handoff_buffer, NULL);
|
||||
|
||||
buffer = new_buffer (20, 0, 0, 2 * GST_SECOND, 0);
|
||||
gst_buffer_map (buffer, &inmap, GST_MAP_WRITE);
|
||||
memset (inmap.data + 15, 1, 5);
|
||||
gst_buffer_unmap (buffer, &inmap);
|
||||
ret = gst_pad_chain (sinkpad, buffer);
|
||||
ck_assert_int_eq (ret, GST_FLOW_OK);
|
||||
gst_pad_query (sinkpad, drain);
|
||||
fail_unless (handoff_buffer != NULL);
|
||||
fail_unless_equals_int (gst_buffer_get_size (handoff_buffer), 40);
|
||||
|
||||
gst_buffer_map (handoff_buffer, &outmap, GST_MAP_READ);
|
||||
for (i = 0; i < 10; i++) {
|
||||
guint32 sample;
|
||||
|
||||
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
|
||||
sample = GUINT32_FROM_LE (((guint32 *) outmap.data)[i]);
|
||||
#else
|
||||
sample = GUINT32_FROM_BE (((guint32 *) outmap.data)[i]);
|
||||
#endif
|
||||
|
||||
if (i < 5) {
|
||||
fail_unless_equals_int (sample, 0);
|
||||
} else {
|
||||
fail_unless_equals_int (sample, 1 << 24);
|
||||
}
|
||||
}
|
||||
gst_buffer_unmap (handoff_buffer, &outmap);
|
||||
|
||||
gst_element_release_request_pad (audiomixer, sinkpad);
|
||||
gst_object_unref (sinkpad);
|
||||
gst_element_set_state (bin, GST_STATE_NULL);
|
||||
gst_bus_remove_signal_watch (bus);
|
||||
gst_object_unref (bus);
|
||||
gst_object_unref (bin);
|
||||
gst_query_unref (drain);
|
||||
}
|
||||
|
||||
GST_END_TEST;
|
||||
|
||||
static Suite *
|
||||
audiomixer_suite (void)
|
||||
{
|
||||
|
|
@ -1739,6 +1875,7 @@ audiomixer_suite (void)
|
|||
tcase_add_test (tc_chain, test_segment_base_handling);
|
||||
tcase_add_test (tc_chain, test_sinkpad_property_controller);
|
||||
tcase_add_checked_fixture (tc_chain, test_setup, test_teardown);
|
||||
tcase_add_test (tc_chain, test_change_output_caps);
|
||||
|
||||
/* Use a longer timeout */
|
||||
#ifdef HAVE_VALGRIND
|
||||
|
|
|
|||
Loading…
Reference in a new issue