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gst/auparse/gstauparse.*: Rewrite auparse to suck a little bit less: make source pad dynamic, so decodebin/playbin wo...
Original commit message from CVS: * gst/auparse/gstauparse.c: (gst_au_parse_base_init), (gst_au_parse_class_init), (gst_au_parse_init), (gst_au_parse_reset), (gst_au_parse_add_srcpad), (gst_au_parse_remove_srcpad), (gst_au_parse_parse_header), (gst_au_parse_chain), (gst_au_parse_src_convert), (gst_au_parse_src_query), (gst_au_parse_handle_seek), (gst_au_parse_sink_event), (gst_au_parse_src_event), (gst_au_parse_change_state): * gst/auparse/gstauparse.h: Rewrite auparse to suck a little bit less: make source pad dynamic, so decodebin/playbin work with non-raw formats like alaw/mulaw; add query function for duration/position queries; check whether we have enough data before attempting to parse the header (instead of crashing when that is not the case); work around audioconvert sucking by swapping endianness to the native endianness ourselves for float formats; send initial newsegment event. Fixes #161712.
This commit is contained in:
Tim-Philipp Müller
parent
cb163be477
commit
5056bb87ab
3 changed files with 598 additions and 266 deletions
20
ChangeLog
20
ChangeLog
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@ -1,3 +1,23 @@
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2006-04-26 Tim-Philipp Müller <tim at centricular dot net>
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* gst/auparse/gstauparse.c: (gst_au_parse_base_init),
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(gst_au_parse_class_init), (gst_au_parse_init),
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(gst_au_parse_reset), (gst_au_parse_add_srcpad),
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(gst_au_parse_remove_srcpad), (gst_au_parse_parse_header),
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(gst_au_parse_chain), (gst_au_parse_src_convert),
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(gst_au_parse_src_query), (gst_au_parse_handle_seek),
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(gst_au_parse_sink_event), (gst_au_parse_src_event),
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(gst_au_parse_change_state):
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* gst/auparse/gstauparse.h:
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Rewrite auparse to suck a little bit less: make source pad
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dynamic, so decodebin/playbin work with non-raw formats
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like alaw/mulaw; add query function for duration/position
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queries; check whether we have enough data before attempting
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to parse the header (instead of crashing when that is not the
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case); work around audioconvert sucking by swapping endianness
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to the native endianness ourselves for float formats; send
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initial newsegment event. Fixes #161712.
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2006-04-26 Zaheer Abbas Merali <zaheerabbas at merali dot org>
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* sys/osxaudio/Makefile.am:
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@ -1,5 +1,6 @@
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/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2006> Tim-Philipp Müller <tim centricular net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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@ -16,10 +17,16 @@
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/* Element-Checklist-Version: 5 */
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/* 2001/04/03 - Updated parseau to use caps nego
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* Zaheer Abbas Merali <zaheerabbas at merali dot org>
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/**
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* SECTION:element-auparse
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* @short_description: .au file parser
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*
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* <refsect2>
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* <para>
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* Parses .au files.
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* </para>
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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@ -32,15 +39,16 @@
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#include "gstauparse.h"
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#include <gst/audio/audio.h>
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/* elementfactory information */
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GST_DEBUG_CATEGORY_STATIC (auparse_debug);
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#define GST_CAT_DEFAULT (auparse_debug)
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static const GstElementDetails gst_au_parse_details =
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GST_ELEMENT_DETAILS ("AU audio demuxer",
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"Codec/Demuxer/Audio",
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"Parse an .au file into raw audio",
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"Erik Walthinsen <omega@cse.ogi.edu>");
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static GstStaticPadTemplate gst_au_parse_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/x-au")
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@ -61,8 +69,7 @@ GST_STATIC_PAD_TEMPLATE ("sink",
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"audio/x-adpcm, " \
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"layout = (string) { g721, g722, g723_3, g723_5 }"
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static GstStaticPadTemplate gst_au_parse_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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GST_STATIC_CAPS (GST_AUDIO_INT_PAD_TEMPLATE_CAPS "; "
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@ -76,19 +83,27 @@ static void gst_au_parse_dispose (GObject * object);
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static GstFlowReturn gst_au_parse_chain (GstPad * pad, GstBuffer * buf);
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static GstStateChangeReturn gst_au_parse_change_state (GstElement * element,
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GstStateChange transition);
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static void gst_au_parse_reset (GstAuParse * auparse);
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static gboolean gst_au_parse_remove_srcpad (GstAuParse * auparse);
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static gboolean gst_au_parse_add_srcpad (GstAuParse * auparse, GstCaps * caps);
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static gboolean gst_au_parse_src_query (GstPad * pad, GstQuery * query);
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static gboolean gst_au_parse_src_event (GstPad * pad, GstEvent * event);
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static gboolean gst_au_parse_sink_event (GstPad * pad, GstEvent * event);
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GST_BOILERPLATE (GstAuParse, gst_au_parse, GstElement, GST_TYPE_ELEMENT)
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GST_BOILERPLATE (GstAuParse, gst_au_parse, GstElement, GST_TYPE_ELEMENT);
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static void gst_au_parse_base_init (gpointer g_class)
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static void
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gst_au_parse_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_au_parse_sink_template));
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gst_static_pad_template_get (&sink_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_au_parse_src_template));
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gst_static_pad_template_get (&src_template));
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gst_element_class_set_details (element_class, &gst_au_parse_details);
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GST_DEBUG_CATEGORY_INIT (auparse_debug, "auparse", 0, ".au parser");
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}
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static void
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@ -100,8 +115,6 @@ gst_au_parse_class_init (GstAuParseClass * klass)
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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parent_class = g_type_class_peek_parent (klass);
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gobject_class->dispose = gst_au_parse_dispose;
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gstelement_class->change_state =
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@ -111,23 +124,16 @@ gst_au_parse_class_init (GstAuParseClass * klass)
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static void
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gst_au_parse_init (GstAuParse * auparse, GstAuParseClass * klass)
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{
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auparse->sinkpad =
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gst_pad_new_from_static_template (&gst_au_parse_sink_template, "sink");
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gst_pad_set_chain_function (auparse->sinkpad, gst_au_parse_chain);
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auparse->sinkpad = gst_pad_new_from_static_template (&sink_template, "sink");
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gst_pad_set_chain_function (auparse->sinkpad,
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GST_DEBUG_FUNCPTR (gst_au_parse_chain));
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gst_pad_set_event_function (auparse->sinkpad,
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GST_DEBUG_FUNCPTR (gst_au_parse_sink_event));
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gst_element_add_pad (GST_ELEMENT (auparse), auparse->sinkpad);
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auparse->srcpad =
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gst_pad_new_from_static_template (&gst_au_parse_src_template, "src");
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gst_pad_use_fixed_caps (auparse->srcpad);
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gst_element_add_pad (GST_ELEMENT (auparse), auparse->srcpad);
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auparse->offset = 0;
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auparse->buffer_offset = 0;
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auparse->srcpad = NULL;
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auparse->adapter = gst_adapter_new ();
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auparse->size = 0;
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auparse->encoding = 0;
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auparse->frequency = 0;
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auparse->channels = 0;
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gst_au_parse_reset (auparse);
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}
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static void
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@ -142,87 +148,143 @@ gst_au_parse_dispose (GObject * object)
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static GstFlowReturn
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gst_au_parse_chain (GstPad * pad, GstBuffer * buf)
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static void
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gst_au_parse_reset (GstAuParse * auparse)
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{
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GstFlowReturn ret;
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GstAuParse *auparse;
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guchar *data;
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glong size;
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GstCaps *tempcaps;
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gint law = 0, depth = 0, ieee = 0;
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gchar layout[7];
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GstBuffer *databuf;
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gst_au_parse_remove_srcpad (auparse);
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layout[0] = 0;
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auparse->offset = 0;
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auparse->buffer_offset = 0;
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auparse->encoding = 0;
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auparse->samplerate = 0;
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auparse->channels = 0;
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auparse->float_swap = 0;
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auparse = GST_AU_PARSE (gst_pad_get_parent (pad));
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gst_adapter_clear (auparse->adapter);
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data = GST_BUFFER_DATA (buf);
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size = GST_BUFFER_SIZE (buf);
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GST_DEBUG_OBJECT (auparse, "got buffer of size %ld", size);
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/* if we haven't seen any data yet... */
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if (auparse->size == 0) {
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guint32 *head = (guint32 *) data;
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/* FIXME, check if we have enough data (with adapter?) instead of
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* crashing. */
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/* normal format is big endian (au is a Sparc format) */
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if (GST_READ_UINT32_BE (head) == 0x2e736e64) { /* ".snd" */
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head++;
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auparse->le = 0;
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auparse->offset = GST_READ_UINT32_BE (head);
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head++;
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/* Do not trust size, could be set to -1 : unknown */
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auparse->size = GST_READ_UINT32_BE (head);
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head++;
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auparse->encoding = GST_READ_UINT32_BE (head);
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head++;
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auparse->frequency = GST_READ_UINT32_BE (head);
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head++;
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auparse->channels = GST_READ_UINT32_BE (head);
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head++;
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/* and of course, someone had to invent a little endian
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* version. Used by DEC systems. */
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} else if (GST_READ_UINT32_LE (head) == 0x0064732E) { /* other source say it is "dns." */
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head++;
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auparse->le = 1;
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auparse->offset = GST_READ_UINT32_LE (head);
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head++;
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/* Do not trust size, could be set to -1 : unknown */
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auparse->size = GST_READ_UINT32_LE (head);
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head++;
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auparse->encoding = GST_READ_UINT32_LE (head);
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head++;
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auparse->frequency = GST_READ_UINT32_LE (head);
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head++;
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auparse->channels = GST_READ_UINT32_LE (head);
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head++;
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} else {
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goto unknown_header;
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/* gst_segment_init (&auparse->segment, GST_FORMAT_TIME); */
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}
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GST_DEBUG
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("offset %ld, size %ld, encoding %ld, frequency %ld, channels %ld\n",
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auparse->offset, auparse->size, auparse->encoding, auparse->frequency,
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auparse->channels);
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static gboolean
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gst_au_parse_add_srcpad (GstAuParse * auparse, GstCaps * new_caps)
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{
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GstPad *srcpad = NULL;
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/*
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Docs :
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http://www.opengroup.org/public/pubs/external/auformat.html
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http://astronomy.swin.edu.au/~pbourke/dataformats/au/
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Solaris headers : /usr/include/audio/au.h
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libsndfile : src/au.c
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Samples :
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http://www.tsp.ece.mcgill.ca/MMSP/Documents/AudioFormats/AU/Samples.html
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if (auparse->src_caps && gst_caps_is_equal (new_caps, auparse->src_caps)) {
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GST_LOG_OBJECT (auparse, "same caps, nothing to do");
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return TRUE;
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}
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gst_caps_replace (&auparse->src_caps, new_caps);
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if (auparse->srcpad != NULL) {
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GST_DEBUG_OBJECT (auparse, "Changing src pad caps to %" GST_PTR_FORMAT,
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auparse->src_caps);
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gst_pad_set_caps (auparse->srcpad, auparse->src_caps);
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}
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if (auparse->srcpad == NULL) {
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srcpad = auparse->srcpad =
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gst_pad_new_from_static_template (&src_template, "src");
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g_return_val_if_fail (auparse->srcpad != NULL, FALSE);
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#if 0
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gst_pad_set_query_type_function (auparse->srcpad,
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GST_DEBUG_FUNCPTR (gst_au_parse_src_get_query_types));
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#endif
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gst_pad_set_query_function (auparse->srcpad,
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GST_DEBUG_FUNCPTR (gst_au_parse_src_query));
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gst_pad_set_event_function (auparse->srcpad,
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GST_DEBUG_FUNCPTR (gst_au_parse_src_event));
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gst_pad_use_fixed_caps (auparse->srcpad);
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if (auparse->src_caps)
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gst_pad_set_caps (auparse->srcpad, auparse->src_caps);
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GST_DEBUG_OBJECT (auparse, "Adding src pad with caps %" GST_PTR_FORMAT,
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auparse->src_caps);
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gst_object_ref (auparse->srcpad);
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if (!gst_element_add_pad (GST_ELEMENT (auparse), auparse->srcpad))
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return FALSE;
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gst_element_no_more_pads (GST_ELEMENT (auparse));
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}
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return TRUE;
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}
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static gboolean
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gst_au_parse_remove_srcpad (GstAuParse * auparse)
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{
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gboolean res = TRUE;
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if (auparse->srcpad != NULL) {
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GST_DEBUG_OBJECT (auparse, "Removing src pad");
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res = gst_element_remove_pad (GST_ELEMENT (auparse), auparse->srcpad);
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g_return_val_if_fail (res != FALSE, FALSE);
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gst_object_unref (auparse->srcpad);
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auparse->srcpad = NULL;
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}
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return res;
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}
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static GstFlowReturn
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gst_au_parse_parse_header (GstAuParse * auparse)
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{
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GstCaps *tempcaps;
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guint32 size;
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guint8 *head;
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gchar layout[7] = { 0, };
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gint law = 0, depth = 0, ieee = 0;
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head = (guint8 *) gst_adapter_peek (auparse->adapter, 24);
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g_assert (head != NULL);
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GST_DEBUG_OBJECT (auparse, "[%c%c%c%c]", head[0], head[1], head[2], head[3]);
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switch (GST_READ_UINT32_BE (head)) {
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/* normal format is big endian (au is a Sparc format) */
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case 0x2e736e64:{ /* ".snd" */
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auparse->endianness = G_BIG_ENDIAN;
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break;
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}
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/* and of course, someone had to invent a little endian
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* version. Used by DEC systems. */
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case 0x646e732e: /* dns. */
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case 0x0064732e:{ /* other source say it is "dns." */
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auparse->endianness = G_LITTLE_ENDIAN;
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break;
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}
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default:{
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goto unknown_header;
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}
|
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}
|
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|
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auparse->offset = GST_READ_UINT32_BE (head + 4);
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/* Do not trust size, could be set to -1 : unknown */
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size = GST_READ_UINT32_BE (head + 8);
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auparse->encoding = GST_READ_UINT32_BE (head + 12);
|
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auparse->samplerate = GST_READ_UINT32_BE (head + 16);
|
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auparse->channels = GST_READ_UINT32_BE (head + 20);
|
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GST_DEBUG_OBJECT (auparse, "offset %ld, size %u, encoding %u, "
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"frequency %u, channels %u", auparse->offset, size,
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auparse->encoding, auparse->samplerate, auparse->channels);
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/* Docs:
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* http://www.opengroup.org/public/pubs/external/auformat.html
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* http://astronomy.swin.edu.au/~pbourke/dataformats/au/
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* Solaris headers : /usr/include/audio/au.h
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* libsndfile : src/au.c
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*
|
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* Samples :
|
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* http://www.tsp.ece.mcgill.ca/MMSP/Documents/AudioFormats/AU/Samples.html
|
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*/
|
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|
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switch (auparse->encoding) {
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auparse->float_swap = 0;
|
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|
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switch (auparse->encoding) {
|
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case 1: /* 8-bit ISDN mu-law G.711 */
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law = 1;
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depth = 8;
|
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|
|
@ -293,109 +355,357 @@ Samples :
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if (law) {
|
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tempcaps =
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gst_caps_new_simple ((law == 1) ? "audio/x-mulaw" : "audio/x-alaw",
|
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"rate", G_TYPE_INT, auparse->frequency,
|
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"rate", G_TYPE_INT, auparse->samplerate,
|
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"channels", G_TYPE_INT, auparse->channels, NULL);
|
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auparse->sample_size = auparse->channels;
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} else if (ieee) {
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tempcaps = gst_caps_new_simple ("audio/x-raw-float",
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"rate", G_TYPE_INT, auparse->frequency,
|
||||
"rate", G_TYPE_INT, auparse->samplerate,
|
||||
"channels", G_TYPE_INT, auparse->channels,
|
||||
"endianness", G_TYPE_INT,
|
||||
auparse->le ? G_LITTLE_ENDIAN : G_BIG_ENDIAN,
|
||||
"endianness", G_TYPE_INT, G_BYTE_ORDER,
|
||||
"width", G_TYPE_INT, depth, NULL);
|
||||
auparse->sample_size = auparse->channels * depth / 8;
|
||||
if (auparse->endianness != G_BYTE_ORDER) {
|
||||
GST_DEBUG_OBJECT (auparse, "need to swap float byte order ourselves!");
|
||||
auparse->float_swap = depth;
|
||||
}
|
||||
} else if (layout[0]) {
|
||||
tempcaps = gst_caps_new_simple ("audio/x-adpcm",
|
||||
"layout", G_TYPE_STRING, layout, NULL);
|
||||
auparse->sample_size = 0;
|
||||
} else {
|
||||
tempcaps = gst_caps_new_simple ("audio/x-raw-int",
|
||||
"rate", G_TYPE_INT, auparse->frequency,
|
||||
"rate", G_TYPE_INT, auparse->samplerate,
|
||||
"channels", G_TYPE_INT, auparse->channels,
|
||||
"endianness", G_TYPE_INT,
|
||||
auparse->le ? G_LITTLE_ENDIAN : G_BIG_ENDIAN, "depth", G_TYPE_INT,
|
||||
depth, "width", G_TYPE_INT, depth, "signed", G_TYPE_BOOLEAN, TRUE,
|
||||
NULL);
|
||||
"endianness", G_TYPE_INT, auparse->endianness,
|
||||
"depth", G_TYPE_INT, depth, "width", G_TYPE_INT, depth,
|
||||
/* FIXME: signed TRUE even for 8-bit PCM? */
|
||||
"signed", G_TYPE_BOOLEAN, TRUE, NULL);
|
||||
auparse->sample_size = auparse->channels * depth / 8;
|
||||
}
|
||||
|
||||
gst_pad_set_caps (auparse->srcpad, tempcaps);
|
||||
GST_DEBUG_OBJECT (auparse, "sample_size=%d", auparse->sample_size);
|
||||
|
||||
#if 0
|
||||
{
|
||||
GstEvent *event;
|
||||
if (!gst_au_parse_add_srcpad (auparse, tempcaps))
|
||||
goto add_pad_failed;
|
||||
|
||||
event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_DEFAULT,
|
||||
0, GST_CLOCK_TIME_NONE, 0);
|
||||
GST_DEBUG_OBJECT (auparse, "offset=%ld", auparse->offset);
|
||||
gst_adapter_flush (auparse->adapter, auparse->offset);
|
||||
|
||||
gst_pad_push_event (auparse->srcpad, event);
|
||||
}
|
||||
#endif
|
||||
|
||||
databuf = gst_buffer_create_sub (buf, auparse->offset,
|
||||
size - auparse->offset);
|
||||
|
||||
gst_buffer_unref (buf);
|
||||
buf = NULL;
|
||||
} else {
|
||||
databuf = buf;
|
||||
buf = NULL;
|
||||
}
|
||||
|
||||
if (auparse->sample_size) {
|
||||
int avail;
|
||||
|
||||
gst_adapter_push (auparse->adapter, databuf);
|
||||
|
||||
/* Ensure we push a buffer that's a multiple of the frame size downstream */
|
||||
avail = gst_adapter_available (auparse->adapter);
|
||||
avail -= avail % auparse->sample_size;
|
||||
|
||||
if (avail > 0) {
|
||||
const guint8 *data = gst_adapter_peek (auparse->adapter, avail);
|
||||
GstBuffer *newbuf;
|
||||
|
||||
if ((ret =
|
||||
gst_pad_alloc_buffer_and_set_caps (auparse->srcpad,
|
||||
auparse->buffer_offset, avail, GST_PAD_CAPS (auparse->srcpad),
|
||||
&newbuf)) == GST_FLOW_OK) {
|
||||
|
||||
memcpy (GST_BUFFER_DATA (newbuf), data, avail);
|
||||
gst_adapter_flush (auparse->adapter, avail);
|
||||
|
||||
auparse->buffer_offset += avail;
|
||||
|
||||
ret = gst_pad_push (auparse->srcpad, newbuf);
|
||||
}
|
||||
} else {
|
||||
ret = GST_FLOW_OK;
|
||||
}
|
||||
} else {
|
||||
/* It's something non-trivial (such as ADPCM), we don't understand it, so
|
||||
* just push downstream and assume this will know what to do with it */
|
||||
gst_buffer_set_caps (databuf, GST_PAD_CAPS (auparse->srcpad));
|
||||
ret = gst_pad_push (auparse->srcpad, databuf);
|
||||
}
|
||||
|
||||
gst_object_unref (auparse);
|
||||
|
||||
return ret;
|
||||
gst_caps_unref (tempcaps);
|
||||
return GST_FLOW_OK;
|
||||
|
||||
/* ERRORS */
|
||||
unknown_header:
|
||||
{
|
||||
GST_ELEMENT_ERROR (auparse, STREAM, WRONG_TYPE, (NULL), (NULL));
|
||||
gst_buffer_unref (buf);
|
||||
gst_object_unref (auparse);
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
unknown_format:
|
||||
{
|
||||
GST_ELEMENT_ERROR (auparse, STREAM, FORMAT, (NULL), (NULL));
|
||||
gst_buffer_unref (buf);
|
||||
gst_object_unref (auparse);
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
add_pad_failed:
|
||||
{
|
||||
GST_ELEMENT_ERROR (auparse, STREAM, FAILED, (NULL),
|
||||
("Failed to add srcpad"));
|
||||
gst_caps_unref (tempcaps);
|
||||
return GST_FLOW_ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
#define AU_HEADER_SIZE 24
|
||||
|
||||
static GstFlowReturn
|
||||
gst_au_parse_chain (GstPad * pad, GstBuffer * buf)
|
||||
{
|
||||
GstFlowReturn ret = GST_FLOW_OK;
|
||||
GstAuParse *auparse;
|
||||
gint avail, sendnow = 0;
|
||||
|
||||
auparse = GST_AU_PARSE (gst_pad_get_parent (pad));
|
||||
|
||||
GST_LOG_OBJECT (auparse, "got buffer of size %u", GST_BUFFER_SIZE (buf));
|
||||
|
||||
gst_adapter_push (auparse->adapter, buf);
|
||||
buf = NULL;
|
||||
|
||||
/* if we haven't seen any data yet... */
|
||||
if (auparse->srcpad == NULL) {
|
||||
if (gst_adapter_available (auparse->adapter) < AU_HEADER_SIZE) {
|
||||
GST_DEBUG_OBJECT (auparse, "need more data to parse header");
|
||||
ret = GST_FLOW_OK;
|
||||
goto out;
|
||||
}
|
||||
|
||||
ret = gst_au_parse_parse_header (auparse);
|
||||
if (ret != GST_FLOW_OK)
|
||||
goto out;
|
||||
|
||||
gst_pad_push_event (auparse->srcpad,
|
||||
gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_DEFAULT,
|
||||
0, GST_CLOCK_TIME_NONE, 0));
|
||||
}
|
||||
|
||||
avail = gst_adapter_available (auparse->adapter);
|
||||
|
||||
if (auparse->sample_size > 0) {
|
||||
/* Ensure we push a buffer that's a multiple of the frame size downstream */
|
||||
sendnow = avail - (avail % auparse->sample_size);
|
||||
} else {
|
||||
/* It's something non-trivial (such as ADPCM), we don't understand it, so
|
||||
* just push downstream and assume it will know what to do with it */
|
||||
sendnow = avail;
|
||||
}
|
||||
|
||||
if (sendnow > 0) {
|
||||
GstBuffer *outbuf;
|
||||
const guint8 *data;
|
||||
|
||||
ret = gst_pad_alloc_buffer_and_set_caps (auparse->srcpad,
|
||||
auparse->buffer_offset, sendnow, GST_PAD_CAPS (auparse->srcpad),
|
||||
&outbuf);
|
||||
|
||||
if (ret != GST_FLOW_OK) {
|
||||
GST_DEBUG_OBJECT (auparse, "pad alloc flow: %s", gst_flow_get_name (ret));
|
||||
goto out;
|
||||
}
|
||||
|
||||
data = gst_adapter_peek (auparse->adapter, sendnow);
|
||||
|
||||
/* audioconvert only handles floats in native endianness ... */
|
||||
switch (auparse->float_swap) {
|
||||
case 32:{
|
||||
guint32 *indata = (guint32 *) data;
|
||||
guint32 *outdata = (guint32 *) GST_BUFFER_DATA (outbuf);
|
||||
gint i;
|
||||
|
||||
for (i = 0; i < (sendnow / sizeof (guint32)); ++i) {
|
||||
outdata[i] = GUINT32_SWAP_LE_BE (indata[i]);
|
||||
}
|
||||
break;
|
||||
}
|
||||
case 64:{
|
||||
guint64 *indata = (guint64 *) data;
|
||||
guint64 *outdata = (guint64 *) GST_BUFFER_DATA (outbuf);
|
||||
gint i;
|
||||
|
||||
for (i = 0; i < (sendnow / sizeof (guint64)); ++i) {
|
||||
outdata[i] = GUINT64_SWAP_LE_BE (indata[i]);
|
||||
}
|
||||
break;
|
||||
}
|
||||
default:{
|
||||
memcpy (GST_BUFFER_DATA (outbuf), data, sendnow);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
gst_adapter_flush (auparse->adapter, sendnow);
|
||||
|
||||
auparse->buffer_offset += sendnow;
|
||||
|
||||
ret = gst_pad_push (auparse->srcpad, outbuf);
|
||||
}
|
||||
|
||||
out:
|
||||
|
||||
gst_object_unref (auparse);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_au_parse_src_convert (GstAuParse * auparse, GstFormat src_format,
|
||||
gint64 srcval, GstFormat dest_format, gint64 * destval)
|
||||
{
|
||||
gboolean ret = TRUE;
|
||||
gint64 offset;
|
||||
guint samplesize, rate;
|
||||
|
||||
if (dest_format == src_format) {
|
||||
*destval = srcval;
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
GST_OBJECT_LOCK (auparse);
|
||||
samplesize = auparse->sample_size;
|
||||
offset = auparse->offset;
|
||||
rate = auparse->samplerate;
|
||||
GST_OBJECT_UNLOCK (auparse);
|
||||
|
||||
if (samplesize == 0 || rate == 0) {
|
||||
GST_LOG_OBJECT (auparse, "cannot convert, sample_size or rate unknown");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
switch (src_format) {
|
||||
case GST_FORMAT_BYTES:
|
||||
srcval /= samplesize;
|
||||
/* fallthrough */
|
||||
case GST_FORMAT_DEFAULT:{
|
||||
switch (dest_format) {
|
||||
case GST_FORMAT_BYTES:
|
||||
*destval = srcval * samplesize;
|
||||
break;
|
||||
case GST_FORMAT_TIME:
|
||||
*destval = gst_util_uint64_scale_int (srcval, GST_SECOND, rate);
|
||||
break;
|
||||
default:
|
||||
ret = FALSE;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
}
|
||||
case GST_FORMAT_TIME:{
|
||||
switch (dest_format) {
|
||||
case GST_FORMAT_BYTES:
|
||||
*destval =
|
||||
gst_util_uint64_scale_int (srcval, rate * samplesize, GST_SECOND);
|
||||
break;
|
||||
case GST_FORMAT_DEFAULT:
|
||||
*destval = gst_util_uint64_scale_int (srcval, rate, GST_SECOND);
|
||||
break;
|
||||
default:
|
||||
ret = FALSE;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
}
|
||||
default:{
|
||||
ret = FALSE;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (!ret) {
|
||||
GST_DEBUG_OBJECT (auparse, "could not convert from %s to %s format",
|
||||
gst_format_get_name (src_format), gst_format_get_name (dest_format));
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_au_parse_src_query (GstPad * pad, GstQuery * query)
|
||||
{
|
||||
GstAuParse *auparse;
|
||||
gboolean ret = FALSE;
|
||||
|
||||
auparse = GST_AU_PARSE (gst_pad_get_parent (pad));
|
||||
|
||||
switch (GST_QUERY_TYPE (query)) {
|
||||
case GST_QUERY_DURATION:{
|
||||
GstFormat bformat = GST_FORMAT_BYTES;
|
||||
GstFormat format;
|
||||
gint64 len, val;
|
||||
|
||||
gst_query_parse_duration (query, &format, NULL);
|
||||
if (!gst_pad_query_peer_duration (auparse->sinkpad, &bformat, &len)) {
|
||||
GST_DEBUG_OBJECT (auparse, "failed to query upstream length");
|
||||
break;
|
||||
}
|
||||
GST_OBJECT_LOCK (auparse);
|
||||
len -= auparse->offset;
|
||||
GST_OBJECT_UNLOCK (auparse);
|
||||
|
||||
ret = gst_au_parse_src_convert (auparse, GST_FORMAT_BYTES, len,
|
||||
format, &val);
|
||||
|
||||
if (ret) {
|
||||
gst_query_set_duration (query, format, val);
|
||||
}
|
||||
break;
|
||||
}
|
||||
case GST_QUERY_POSITION:{
|
||||
GstFormat bformat = GST_FORMAT_BYTES;
|
||||
GstFormat format;
|
||||
gint64 pos, val;
|
||||
|
||||
gst_query_parse_position (query, &format, NULL);
|
||||
if (!gst_pad_query_peer_position (auparse->sinkpad, &bformat, &pos)) {
|
||||
GST_DEBUG_OBJECT (auparse, "failed to query upstream position");
|
||||
break;
|
||||
}
|
||||
GST_OBJECT_LOCK (auparse);
|
||||
pos -= auparse->offset;
|
||||
GST_OBJECT_UNLOCK (auparse);
|
||||
|
||||
ret = gst_au_parse_src_convert (auparse, GST_FORMAT_BYTES, pos,
|
||||
format, &val);
|
||||
|
||||
if (ret) {
|
||||
gst_query_set_position (query, format, val);
|
||||
}
|
||||
break;
|
||||
}
|
||||
default:
|
||||
ret = gst_pad_query_default (pad, query);
|
||||
break;
|
||||
}
|
||||
|
||||
gst_object_unref (auparse);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_au_parse_handle_seek (GstAuParse * auparse, GstEvent * event)
|
||||
{
|
||||
GstSeekType start_type, stop_type;
|
||||
GstSeekFlags flags;
|
||||
GstFormat format;
|
||||
gdouble rate;
|
||||
gint64 start, stop;
|
||||
|
||||
gst_event_parse_seek (event, &rate, &format, &flags, &start_type, &start,
|
||||
&stop_type, &stop);
|
||||
|
||||
if (format != GST_FORMAT_TIME) {
|
||||
GST_DEBUG_OBJECT (auparse, "only support seeks in TIME format");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/* FIXME: implement seeking */
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_au_parse_sink_event (GstPad * pad, GstEvent * event)
|
||||
{
|
||||
GstAuParse *auparse;
|
||||
gboolean ret;
|
||||
|
||||
auparse = GST_AU_PARSE (gst_pad_get_parent (pad));
|
||||
|
||||
switch (GST_EVENT_TYPE (event)) {
|
||||
default:
|
||||
ret = gst_pad_event_default (pad, event);
|
||||
break;
|
||||
}
|
||||
|
||||
gst_object_unref (auparse);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_au_parse_src_event (GstPad * pad, GstEvent * event)
|
||||
{
|
||||
GstAuParse *auparse;
|
||||
gboolean ret;
|
||||
|
||||
auparse = GST_AU_PARSE (gst_pad_get_parent (pad));
|
||||
|
||||
switch (GST_EVENT_TYPE (event)) {
|
||||
case GST_EVENT_SEEK:
|
||||
ret = gst_au_parse_handle_seek (auparse, event);
|
||||
break;
|
||||
default:
|
||||
ret = gst_pad_event_default (pad, event);
|
||||
break;
|
||||
}
|
||||
|
||||
gst_object_unref (auparse);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static GstStateChangeReturn
|
||||
|
|
@ -409,14 +719,8 @@ gst_au_parse_change_state (GstElement * element, GstStateChange transition)
|
|||
return ret;
|
||||
|
||||
switch (transition) {
|
||||
case GST_STATE_CHANGE_READY_TO_NULL:
|
||||
gst_adapter_clear (auparse->adapter);
|
||||
auparse->buffer_offset = 0;
|
||||
auparse->offset = 0;
|
||||
auparse->size = 0;
|
||||
auparse->encoding = 0;
|
||||
auparse->frequency = 0;
|
||||
auparse->channels = 0;
|
||||
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
||||
gst_au_parse_reset (auparse);
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,5 +1,6 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
|
||||
* Copyright (C) <2006> Tim-Philipp Müller <tim centricular net>
|
||||
*
|
||||
* This library is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
|
|
@ -18,8 +19,8 @@
|
|||
*/
|
||||
|
||||
|
||||
#ifndef __GST_AUPARSE_H__
|
||||
#define __GST_AUPARSE_H__
|
||||
#ifndef __GST_AU_PARSE_H__
|
||||
#define __GST_AU_PARSE_H__
|
||||
|
||||
|
||||
#include <gst/gst.h>
|
||||
|
|
@ -33,10 +34,10 @@ G_BEGIN_DECLS
|
|||
#define GST_AU_PARSE(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AU_PARSE,GstAuParse))
|
||||
#define GST_AU_PARSE_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AU_PARSE,GstAuParse))
|
||||
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AU_PARSE,GstAuParseClass))
|
||||
#define GST_IS_AU_PARSE(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AU_PARSE))
|
||||
#define GST_IS_AU_PARSE_CLASS(obj) \
|
||||
#define GST_IS_AU_PARSE_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AU_PARSE))
|
||||
|
||||
typedef struct _GstAuParse GstAuParse;
|
||||
|
|
@ -45,19 +46,26 @@ typedef struct _GstAuParseClass GstAuParseClass;
|
|||
struct _GstAuParse {
|
||||
GstElement element;
|
||||
|
||||
GstPad *sinkpad,*srcpad;
|
||||
GstPad *sinkpad;
|
||||
GstPad *srcpad;
|
||||
|
||||
guchar le;
|
||||
glong offset;
|
||||
glong buffer_offset;
|
||||
gint sample_size;
|
||||
glong size;
|
||||
glong encoding;
|
||||
glong frequency;
|
||||
glong channels;
|
||||
GstCaps *src_caps;
|
||||
|
||||
GstAdapter *adapter;
|
||||
|
||||
/* GstSegment segment; */
|
||||
|
||||
gint64 offset; /* where sample data starts */
|
||||
gint64 buffer_offset;
|
||||
guint sample_size;
|
||||
guint encoding;
|
||||
guint samplerate;
|
||||
guint endianness;
|
||||
guint channels;
|
||||
|
||||
/* audioconvert only handles float in native endianness,
|
||||
* so we need to swap endianness here ourselves for now */
|
||||
guint float_swap; /* 0, 32 or 64 */
|
||||
};
|
||||
|
||||
struct _GstAuParseClass {
|
||||
|
|
@ -68,4 +76,4 @@ GType gst_au_parse_get_type (void);
|
|||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_AUPARSE_H__ */
|
||||
#endif /* __GST_AU_PARSE_H__ */
|
||||
|
|
|
|||
Loading…
Reference in a new issue