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aacparse: forego (bogus) parsing of already parsed (raw) input

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This commit is contained in:
Mark Nauwelaerts 2009-09-25 17:02:53 +02:00 committed by Tim-Philipp Müller
parent 19c47f9673
commit fb84ca3d93
3 changed files with 42 additions and 5 deletions
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14
gst/aacparse/gstaacparse.c
View file

@ -200,6 +200,7 @@ gst_aacparse_finalize (GObject * object)
/**
* gst_aacparse_set_src_caps:
* @aacparse: #GstAacParse.
* @sink_caps: (proposed) caps of sink pad
*
* Set source pad caps according to current knowledge about the
* audio stream.
@ -207,13 +208,12 @@ gst_aacparse_finalize (GObject * object)
* Returns: TRUE if caps were successfully set.
*/
static gboolean
gst_aacparse_set_src_caps (GstAacParse * aacparse)
gst_aacparse_set_src_caps (GstAacParse * aacparse, GstCaps * sink_caps)
{
GstStructure *s;
GstCaps *sink_caps, *src_caps = NULL;
GstCaps *src_caps = NULL;
gboolean res = FALSE;
sink_caps = GST_PAD_CAPS (GST_BASE_PARSE (aacparse)->sinkpad);
GST_DEBUG_OBJECT (aacparse, "sink caps: %" GST_PTR_FORMAT, sink_caps);
if (sink_caps)
src_caps = gst_caps_copy (sink_caps);
@ -282,6 +282,10 @@ gst_aacparse_sink_setcaps (GstBaseParse * parse, GstCaps * caps)
GST_DEBUG ("codec_data: object_type=%d, sample_rate=%d, channels=%d",
aacparse->object_type, aacparse->sample_rate, aacparse->channels);
/* arrange for metadata and get out of the way */
gst_aacparse_set_src_caps (aacparse, caps);
gst_base_parse_set_passthrough (parse, TRUE);
} else
return FALSE;
}
@ -680,7 +684,8 @@ gst_aacparse_parse_frame (GstBaseParse * parse, GstBuffer * buffer)
aacparse->bytecount += GST_BUFFER_SIZE (buffer);
if (!aacparse->src_caps_set) {
if (!gst_aacparse_set_src_caps (aacparse)) {
if (!gst_aacparse_set_src_caps (aacparse,
GST_PAD_CAPS (GST_BASE_PARSE (aacparse)->sinkpad))) {
/* If linking fails, we need to return appropriate error */
ret = GST_FLOW_NOT_LINKED;
}
@ -713,6 +718,7 @@ gst_aacparse_start (GstBaseParse * parse)
aacparse->ts = 0;
aacparse->sync = FALSE;
aacparse->eos = FALSE;
gst_base_parse_set_passthrough (parse, FALSE);
return TRUE;
}

32
gst/aacparse/gstbaseparse.c
View file

@ -201,6 +201,7 @@ struct _GstBaseParsePrivate
GstFormat duration_fmt;
guint min_frame_size;
gboolean passthrough;
gboolean discont;
gboolean flushing;
@ -405,6 +406,7 @@ gst_base_parse_init (GstBaseParse * parse, GstBaseParseClass * bclass)
parse->priv->pad_mode = GST_ACTIVATE_NONE;
parse->priv->duration = -1;
parse->priv->min_frame_size = 1;
parse->priv->passthrough = FALSE;
parse->priv->discont = FALSE;
parse->priv->flushing = FALSE;
parse->priv->offset = 0;
@ -919,7 +921,11 @@ gst_base_parse_chain (GstPad * pad, GstBuffer * buffer)
if (G_LIKELY (buffer)) {
GST_LOG_OBJECT (parse, "buffer size: %d, offset = %lld",
GST_BUFFER_SIZE (buffer), GST_BUFFER_OFFSET (buffer));
gst_adapter_push (parse->adapter, buffer);
if (G_UNLIKELY (parse->priv->passthrough)) {
buffer = gst_buffer_make_metadata_writable (buffer);
return gst_base_parse_push_buffer (parse, buffer);
} else
gst_adapter_push (parse->adapter, buffer);
}
/* Parse and push as many frames as possible */
@ -1410,6 +1416,30 @@ gst_base_parse_set_min_frame_size (GstBaseParse * parse, guint min_size)
GST_BASE_PARSE_UNLOCK (parse);
}
/**
* gst_base_transform_set_passthrough:
* @trans: the #GstBaseTransform to set
* @passthrough: boolean indicating passthrough mode.
*
* Set passthrough mode for this filter by default. This is mostly
* useful for filters that do not care about negotiation.
*
* Always TRUE for filters which don't implement either a transform
* or transform_ip method.
*
* MT safe.
*/
void
gst_base_parse_set_passthrough (GstBaseParse * parse, gboolean passthrough)
{
g_return_if_fail (parse != NULL);
GST_BASE_PARSE_LOCK (parse);
parse->priv->passthrough = passthrough;
GST_LOG_OBJECT (parse, "set passthrough: %d", passthrough);
GST_BASE_PARSE_UNLOCK (parse);
}
/**
* gst_base_parse_get_querytypes:

1
gst/aacparse/gstbaseparse.h
View file

@ -234,6 +234,7 @@ void gst_base_parse_set_duration (GstBaseParse *parse,
void gst_base_parse_set_min_frame_size (GstBaseParse *parse,
guint min_size);
void gst_base_parse_set_passthrough (GstBaseParse * parse, gboolean passthrough);
G_END_DECLS