mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 21:28:45 +00:00
aacparse: use (default) time handling of baseparser class
This commit is contained in:
parent
d4c89e2492
commit
64d6d5554e
2 changed files with 11 additions and 192 deletions
|
@ -156,8 +156,6 @@ gst_aacparse_class_init (GstAacParseClass * klass)
|
|||
|
||||
parse_class->start = GST_DEBUG_FUNCPTR (gst_aacparse_start);
|
||||
parse_class->stop = GST_DEBUG_FUNCPTR (gst_aacparse_stop);
|
||||
parse_class->event = GST_DEBUG_FUNCPTR (gst_aacparse_event);
|
||||
parse_class->convert = GST_DEBUG_FUNCPTR (gst_aacparse_convert);
|
||||
parse_class->set_sink_caps = GST_DEBUG_FUNCPTR (gst_aacparse_sink_setcaps);
|
||||
parse_class->is_seekable = GST_DEBUG_FUNCPTR (gst_aacparse_is_seekable);
|
||||
parse_class->parse_frame = GST_DEBUG_FUNCPTR (gst_aacparse_parse_frame);
|
||||
|
@ -177,7 +175,6 @@ gst_aacparse_init (GstAacParse * aacparse, GstAacParseClass * klass)
|
|||
{
|
||||
/* init rest */
|
||||
gst_base_parse_set_min_frame_size (GST_BASE_PARSE (aacparse), 1024);
|
||||
aacparse->ts = 0;
|
||||
GST_DEBUG ("initialized");
|
||||
}
|
||||
|
||||
|
@ -294,41 +291,6 @@ gst_aacparse_sink_setcaps (GstBaseParse * parse, GstCaps * caps)
|
|||
}
|
||||
|
||||
|
||||
/**
|
||||
* gst_aacparse_update_duration:
|
||||
* @aacparse: #GstAacParse.
|
||||
*
|
||||
*/
|
||||
static void
|
||||
gst_aacparse_update_duration (GstAacParse * aacparse)
|
||||
{
|
||||
GstPad *peer;
|
||||
GstBaseParse *parse;
|
||||
|
||||
parse = GST_BASE_PARSE (aacparse);
|
||||
|
||||
/* Cannot estimate duration. No data has been passed to us yet */
|
||||
if (!aacparse->framecount || !aacparse->frames_per_sec) {
|
||||
return;
|
||||
}
|
||||
|
||||
peer = gst_pad_get_peer (parse->sinkpad);
|
||||
if (peer) {
|
||||
GstFormat pformat = GST_FORMAT_BYTES;
|
||||
guint64 bpf = aacparse->bytecount / aacparse->framecount;
|
||||
gboolean qres = FALSE;
|
||||
gint64 ptot;
|
||||
|
||||
qres = gst_pad_query_duration (peer, &pformat, &ptot);
|
||||
gst_object_unref (GST_OBJECT (peer));
|
||||
if (qres && bpf) {
|
||||
gst_base_parse_set_duration (parse, GST_FORMAT_TIME,
|
||||
AAC_FRAME_DURATION (aacparse) * ptot / bpf);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* gst_aacparse_adts_get_frame_len:
|
||||
* @data: block of data containing an ADTS header.
|
||||
|
@ -384,7 +346,7 @@ gst_aacparse_check_adts_frame (GstAacParse * aacparse,
|
|||
*framesize = gst_aacparse_adts_get_frame_len (data);
|
||||
|
||||
/* In EOS mode this is enough. No need to examine the data further */
|
||||
if (aacparse->eos) {
|
||||
if (gst_base_parse_get_drain (GST_BASE_PARSE (aacparse))) {
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
@ -408,7 +370,6 @@ gst_aacparse_check_adts_frame (GstAacParse * aacparse,
|
|||
return TRUE;
|
||||
}
|
||||
}
|
||||
aacparse->sync = FALSE;
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
|
@ -484,13 +445,13 @@ gst_aacparse_detect_stream (GstAacParse * aacparse,
|
|||
aacparse->channels = ((data[2] & 0x01) << 2) | ((data[3] & 0xc0) >> 6);
|
||||
aacparse->bitrate = ((data[5] & 0x1f) << 6) | ((data[6] & 0xfc) >> 2);
|
||||
|
||||
aacparse->frames_per_sec = aacparse->sample_rate / 1024.f;
|
||||
gst_base_parse_set_frame_props (GST_BASE_PARSE (aacparse),
|
||||
aacparse->sample_rate, 1024, 50);
|
||||
|
||||
GST_DEBUG ("ADTS: samplerate %d, channels %d, bitrate %d, objtype %d, "
|
||||
"fps %f", aacparse->sample_rate, aacparse->channels,
|
||||
aacparse->bitrate, aacparse->object_type, aacparse->frames_per_sec);
|
||||
GST_DEBUG ("ADTS: samplerate %d, channels %d, bitrate %d, objtype %d",
|
||||
aacparse->sample_rate, aacparse->channels, aacparse->bitrate,
|
||||
aacparse->object_type);
|
||||
|
||||
aacparse->sync = TRUE;
|
||||
return TRUE;
|
||||
} else if (need_data) {
|
||||
/* This tells the parent class not to skip any data */
|
||||
|
@ -556,8 +517,8 @@ gst_aacparse_detect_stream (GstAacParse * aacparse,
|
|||
be based on this */
|
||||
aacparse->sample_rate = gst_aacparse_get_sample_rate_from_index (sr_idx);
|
||||
|
||||
aacparse->frames_per_sec = aacparse->sample_rate / 1024.f;
|
||||
GST_INFO ("ADIF fps: %f", aacparse->frames_per_sec);
|
||||
/* baseparse is not given any fps,
|
||||
* so it will give up on timestamps, seeking, etc */
|
||||
|
||||
/* FIXME: Can we assume this? */
|
||||
aacparse->channels = 2;
|
||||
|
@ -568,7 +529,6 @@ gst_aacparse_detect_stream (GstAacParse * aacparse,
|
|||
gst_base_parse_set_min_frame_size (GST_BASE_PARSE (aacparse), 512);
|
||||
|
||||
*framesize = avail;
|
||||
aacparse->sync = TRUE;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
@ -596,14 +556,12 @@ gst_aacparse_check_valid_frame (GstBaseParse * parse,
|
|||
const guint8 *data;
|
||||
GstAacParse *aacparse;
|
||||
gboolean ret = FALSE;
|
||||
gboolean sync;
|
||||
|
||||
aacparse = GST_AACPARSE (parse);
|
||||
data = GST_BUFFER_DATA (buffer);
|
||||
|
||||
if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT)) {
|
||||
/* Discontinuous stream -> drop the sync */
|
||||
aacparse->sync = FALSE;
|
||||
}
|
||||
sync = gst_base_parse_get_sync (parse);
|
||||
|
||||
if (aacparse->header_type == DSPAAC_HEADER_ADIF ||
|
||||
aacparse->header_type == DSPAAC_HEADER_NONE) {
|
||||
|
@ -611,8 +569,7 @@ gst_aacparse_check_valid_frame (GstBaseParse * parse,
|
|||
*framesize = GST_BUFFER_SIZE (buffer);
|
||||
ret = TRUE;
|
||||
|
||||
} else if (aacparse->header_type == DSPAAC_HEADER_NOT_PARSED ||
|
||||
aacparse->sync == FALSE) {
|
||||
} else if (aacparse->header_type == DSPAAC_HEADER_NOT_PARSED || sync == FALSE) {
|
||||
|
||||
ret = gst_aacparse_detect_stream (aacparse, data, GST_BUFFER_SIZE (buffer),
|
||||
framesize, skipsize);
|
||||
|
@ -656,32 +613,6 @@ gst_aacparse_parse_frame (GstBaseParse * parse, GstBuffer * buffer)
|
|||
|
||||
aacparse = GST_AACPARSE (parse);
|
||||
|
||||
if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT)) {
|
||||
gint64 btime;
|
||||
gboolean r = gst_aacparse_convert (parse, GST_FORMAT_BYTES,
|
||||
GST_BUFFER_OFFSET (buffer),
|
||||
GST_FORMAT_TIME, &btime);
|
||||
if (r) {
|
||||
/* FIXME: What to do if the conversion fails? */
|
||||
aacparse->ts = btime;
|
||||
}
|
||||
}
|
||||
|
||||
/* ADIF: only send an initial 0 timestamp downstream,
|
||||
* then admit we have no idea and let downstream (decoder) handle it */
|
||||
if (aacparse->header_type != DSPAAC_HEADER_ADIF || !aacparse->ts) {
|
||||
GST_BUFFER_DURATION (buffer) = AAC_FRAME_DURATION (aacparse);
|
||||
GST_BUFFER_TIMESTAMP (buffer) = aacparse->ts;
|
||||
}
|
||||
|
||||
if (GST_CLOCK_TIME_IS_VALID (aacparse->ts))
|
||||
aacparse->ts += GST_BUFFER_DURATION (buffer);
|
||||
|
||||
if (!(++aacparse->framecount % 50)) {
|
||||
gst_aacparse_update_duration (aacparse);
|
||||
}
|
||||
aacparse->bytecount += GST_BUFFER_SIZE (buffer);
|
||||
|
||||
if (!aacparse->src_caps_set) {
|
||||
if (!gst_aacparse_set_src_caps (aacparse,
|
||||
GST_PAD_CAPS (GST_BASE_PARSE (aacparse)->sinkpad))) {
|
||||
|
@ -712,11 +643,6 @@ gst_aacparse_start (GstBaseParse * parse)
|
|||
aacparse = GST_AACPARSE (parse);
|
||||
GST_DEBUG ("start");
|
||||
aacparse->src_caps_set = FALSE;
|
||||
aacparse->framecount = 0;
|
||||
aacparse->bytecount = 0;
|
||||
aacparse->ts = 0;
|
||||
aacparse->sync = FALSE;
|
||||
aacparse->eos = FALSE;
|
||||
gst_base_parse_set_passthrough (parse, FALSE);
|
||||
return TRUE;
|
||||
}
|
||||
|
@ -737,109 +663,10 @@ gst_aacparse_stop (GstBaseParse * parse)
|
|||
|
||||
aacparse = GST_AACPARSE (parse);
|
||||
GST_DEBUG ("stop");
|
||||
aacparse->ts = -1;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* gst_aacparse_event:
|
||||
* @parse: #GstBaseParse.
|
||||
* @event: #GstEvent.
|
||||
*
|
||||
* Implementation of "event" vmethod in #GstBaseParse class.
|
||||
*
|
||||
* Returns: TRUE if the event was handled and can be dropped.
|
||||
*/
|
||||
gboolean
|
||||
gst_aacparse_event (GstBaseParse * parse, GstEvent * event)
|
||||
{
|
||||
GstAacParse *aacparse;
|
||||
|
||||
aacparse = GST_AACPARSE (parse);
|
||||
GST_DEBUG ("event");
|
||||
|
||||
switch (GST_EVENT_TYPE (event)) {
|
||||
case GST_EVENT_EOS:
|
||||
aacparse->eos = TRUE;
|
||||
GST_DEBUG ("EOS event");
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return parent_class->event (parse, event);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* gst_aacparse_convert:
|
||||
* @parse: #GstBaseParse.
|
||||
* @src_format: #GstFormat describing the source format.
|
||||
* @src_value: Source value to be converted.
|
||||
* @dest_format: #GstFormat defining the converted format.
|
||||
* @dest_value: Pointer where the conversion result will be put.
|
||||
*
|
||||
* Implementation of "convert" vmethod in #GstBaseParse class.
|
||||
*
|
||||
* Returns: TRUE if conversion was successful.
|
||||
*/
|
||||
gboolean
|
||||
gst_aacparse_convert (GstBaseParse * parse,
|
||||
GstFormat src_format,
|
||||
gint64 src_value, GstFormat dest_format, gint64 * dest_value)
|
||||
{
|
||||
gboolean ret = FALSE;
|
||||
GstAacParse *aacparse;
|
||||
gfloat bpf;
|
||||
|
||||
aacparse = GST_AACPARSE (parse);
|
||||
|
||||
/* We are not able to do any estimations until some data has been passed */
|
||||
if (!aacparse->framecount)
|
||||
return FALSE;
|
||||
|
||||
bpf = (gfloat) aacparse->bytecount / aacparse->framecount;
|
||||
|
||||
if (src_format == GST_FORMAT_BYTES) {
|
||||
if (dest_format == GST_FORMAT_TIME) {
|
||||
/* BYTES -> TIME conversion */
|
||||
GST_DEBUG ("converting bytes -> time");
|
||||
|
||||
if (aacparse->framecount && aacparse->frames_per_sec) {
|
||||
*dest_value = AAC_FRAME_DURATION (aacparse) * src_value / bpf;
|
||||
GST_DEBUG ("conversion result: %" G_GINT64_FORMAT " ms",
|
||||
*dest_value / GST_MSECOND);
|
||||
ret = TRUE;
|
||||
}
|
||||
} else if (dest_format == GST_FORMAT_BYTES) {
|
||||
/* Parent class may ask us to convert from BYTES to BYTES */
|
||||
*dest_value = src_value;
|
||||
ret = TRUE;
|
||||
}
|
||||
} else if (src_format == GST_FORMAT_TIME) {
|
||||
GST_DEBUG ("converting time -> bytes");
|
||||
if (dest_format == GST_FORMAT_BYTES) {
|
||||
if (aacparse->framecount && aacparse->frames_per_sec) {
|
||||
*dest_value = bpf * src_value / AAC_FRAME_DURATION (aacparse);
|
||||
GST_DEBUG ("time %" G_GINT64_FORMAT " ms in bytes = %" G_GINT64_FORMAT,
|
||||
src_value / GST_MSECOND, *dest_value);
|
||||
ret = TRUE;
|
||||
}
|
||||
}
|
||||
} else if (src_format == GST_FORMAT_DEFAULT) {
|
||||
/* DEFAULT == frame-based */
|
||||
if (dest_format == GST_FORMAT_TIME && aacparse->frames_per_sec) {
|
||||
*dest_value = src_value * AAC_FRAME_DURATION (aacparse);
|
||||
ret = TRUE;
|
||||
} else if (dest_format == GST_FORMAT_BYTES) {
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* gst_aacparse_is_seekable:
|
||||
* @parse: #GstBaseParse.
|
||||
|
|
|
@ -88,18 +88,10 @@ struct _GstAacParse {
|
|||
gint sample_rate;
|
||||
gint channels;
|
||||
gint mpegversion;
|
||||
gfloat frames_per_sec;
|
||||
|
||||
GstAacHeaderType header_type;
|
||||
|
||||
guint64 framecount;
|
||||
guint64 bytecount;
|
||||
gboolean src_caps_set;
|
||||
gboolean sync;
|
||||
gboolean eos;
|
||||
|
||||
GstClockTime duration;
|
||||
GstClockTime ts;
|
||||
};
|
||||
|
||||
/**
|
||||
|
|
Loading…
Reference in a new issue