/* 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
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
-/* Element-Checklist-Version: 5 */
-/* 2001/04/03 - Updated parseau to use caps nego
- * Zaheer Abbas Merali <zaheerabbas at merali dot org>
+/**
+ * SECTION:element-auparse
+ * @short_description: .au file parser
+ *
+ * <refsect2>
+ * <para>
+ * Parses .au files.
+ * </para>
+ * </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "gstauparse.h"
#include <gst/audio/audio.h>
-/* elementfactory information */
+GST_DEBUG_CATEGORY_STATIC (auparse_debug);
+#define GST_CAT_DEFAULT (auparse_debug)
+
static const GstElementDetails gst_au_parse_details =
GST_ELEMENT_DETAILS ("AU audio demuxer",
"Codec/Demuxer/Audio",
"Parse an .au file into raw audio",
"Erik Walthinsen <omega@cse.ogi.edu>");
-static GstStaticPadTemplate gst_au_parse_sink_template =
-GST_STATIC_PAD_TEMPLATE ("sink",
+static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-au")
"audio/x-adpcm, " \
"layout = (string) { g721, g722, g723_3, g723_5 }"
-static GstStaticPadTemplate gst_au_parse_src_template =
- GST_STATIC_PAD_TEMPLATE ("src",
+static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_SOMETIMES,
GST_STATIC_CAPS (GST_AUDIO_INT_PAD_TEMPLATE_CAPS "; "
static GstFlowReturn gst_au_parse_chain (GstPad * pad, GstBuffer * buf);
static GstStateChangeReturn gst_au_parse_change_state (GstElement * element,
GstStateChange transition);
+static void gst_au_parse_reset (GstAuParse * auparse);
+static gboolean gst_au_parse_remove_srcpad (GstAuParse * auparse);
+static gboolean gst_au_parse_add_srcpad (GstAuParse * auparse, GstCaps * caps);
+static gboolean gst_au_parse_src_query (GstPad * pad, GstQuery * query);
+static gboolean gst_au_parse_src_event (GstPad * pad, GstEvent * event);
+static gboolean gst_au_parse_sink_event (GstPad * pad, GstEvent * event);
-GST_BOILERPLATE (GstAuParse, gst_au_parse, GstElement, GST_TYPE_ELEMENT)
+GST_BOILERPLATE (GstAuParse, gst_au_parse, GstElement, GST_TYPE_ELEMENT);
- static void gst_au_parse_base_init (gpointer g_class)
+static void
+gst_au_parse_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_au_parse_sink_template));
+ gst_static_pad_template_get (&sink_template));
gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_au_parse_src_template));
+ gst_static_pad_template_get (&src_template));
gst_element_class_set_details (element_class, &gst_au_parse_details);
+ GST_DEBUG_CATEGORY_INIT (auparse_debug, "auparse", 0, ".au parser");
}
static void
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
- parent_class = g_type_class_peek_parent (klass);
-
gobject_class->dispose = gst_au_parse_dispose;
gstelement_class->change_state =
static void
gst_au_parse_init (GstAuParse * auparse, GstAuParseClass * klass)
{
- auparse->sinkpad =
- gst_pad_new_from_static_template (&gst_au_parse_sink_template, "sink");
- gst_pad_set_chain_function (auparse->sinkpad, gst_au_parse_chain);
+ auparse->sinkpad = gst_pad_new_from_static_template (&sink_template, "sink");
+ gst_pad_set_chain_function (auparse->sinkpad,
+ GST_DEBUG_FUNCPTR (gst_au_parse_chain));
+ gst_pad_set_event_function (auparse->sinkpad,
+ GST_DEBUG_FUNCPTR (gst_au_parse_sink_event));
gst_element_add_pad (GST_ELEMENT (auparse), auparse->sinkpad);
- auparse->srcpad =
- gst_pad_new_from_static_template (&gst_au_parse_src_template, "src");
- gst_pad_use_fixed_caps (auparse->srcpad);
- gst_element_add_pad (GST_ELEMENT (auparse), auparse->srcpad);
-
- auparse->offset = 0;
- auparse->buffer_offset = 0;
+ auparse->srcpad = NULL;
auparse->adapter = gst_adapter_new ();
- auparse->size = 0;
- auparse->encoding = 0;
- auparse->frequency = 0;
- auparse->channels = 0;
+ gst_au_parse_reset (auparse);
}
static void
G_OBJECT_CLASS (parent_class)->dispose (object);
}
+static void
+gst_au_parse_reset (GstAuParse * auparse)
+{
+ gst_au_parse_remove_srcpad (auparse);
+
+ auparse->offset = 0;
+ auparse->buffer_offset = 0;
+ auparse->encoding = 0;
+ auparse->samplerate = 0;
+ auparse->channels = 0;
+ auparse->float_swap = 0;
+
+ gst_adapter_clear (auparse->adapter);
+
+ /* gst_segment_init (&auparse->segment, GST_FORMAT_TIME); */
+}
+
+static gboolean
+gst_au_parse_add_srcpad (GstAuParse * auparse, GstCaps * new_caps)
+{
+ GstPad *srcpad = NULL;
+
+ if (auparse->src_caps && gst_caps_is_equal (new_caps, auparse->src_caps)) {
+ GST_LOG_OBJECT (auparse, "same caps, nothing to do");
+ return TRUE;
+ }
+
+ gst_caps_replace (&auparse->src_caps, new_caps);
+ if (auparse->srcpad != NULL) {
+ GST_DEBUG_OBJECT (auparse, "Changing src pad caps to %" GST_PTR_FORMAT,
+ auparse->src_caps);
+ gst_pad_set_caps (auparse->srcpad, auparse->src_caps);
+ }
+
+ if (auparse->srcpad == NULL) {
+ srcpad = auparse->srcpad =
+ gst_pad_new_from_static_template (&src_template, "src");
+ g_return_val_if_fail (auparse->srcpad != NULL, FALSE);
+
+#if 0
+ gst_pad_set_query_type_function (auparse->srcpad,
+ GST_DEBUG_FUNCPTR (gst_au_parse_src_get_query_types));
+#endif
+ gst_pad_set_query_function (auparse->srcpad,
+ GST_DEBUG_FUNCPTR (gst_au_parse_src_query));
+ gst_pad_set_event_function (auparse->srcpad,
+ GST_DEBUG_FUNCPTR (gst_au_parse_src_event));
+
+ gst_pad_use_fixed_caps (auparse->srcpad);
+
+ if (auparse->src_caps)
+ gst_pad_set_caps (auparse->srcpad, auparse->src_caps);
+
+ GST_DEBUG_OBJECT (auparse, "Adding src pad with caps %" GST_PTR_FORMAT,
+ auparse->src_caps);
+
+ gst_object_ref (auparse->srcpad);
+ if (!gst_element_add_pad (GST_ELEMENT (auparse), auparse->srcpad))
+ return FALSE;
+ gst_element_no_more_pads (GST_ELEMENT (auparse));
+ }
+
+ return TRUE;
+}
+
+static gboolean
+gst_au_parse_remove_srcpad (GstAuParse * auparse)
+{
+ gboolean res = TRUE;
+
+ if (auparse->srcpad != NULL) {
+ GST_DEBUG_OBJECT (auparse, "Removing src pad");
+ res = gst_element_remove_pad (GST_ELEMENT (auparse), auparse->srcpad);
+ g_return_val_if_fail (res != FALSE, FALSE);
+ gst_object_unref (auparse->srcpad);
+ auparse->srcpad = NULL;
+ }
+
+ return res;
+}
+
static GstFlowReturn
-gst_au_parse_chain (GstPad * pad, GstBuffer * buf)
+gst_au_parse_parse_header (GstAuParse * auparse)
{
- GstFlowReturn ret;
- GstAuParse *auparse;
- guchar *data;
- glong size;
GstCaps *tempcaps;
+ guint32 size;
+ guint8 *head;
+ gchar layout[7] = { 0, };
gint law = 0, depth = 0, ieee = 0;
- gchar layout[7];
- GstBuffer *databuf;
- layout[0] = 0;
+ head = (guint8 *) gst_adapter_peek (auparse->adapter, 24);
+ g_assert (head != NULL);
+
+ GST_DEBUG_OBJECT (auparse, "[%c%c%c%c]", head[0], head[1], head[2], head[3]);
+
+ switch (GST_READ_UINT32_BE (head)) {
+ /* normal format is big endian (au is a Sparc format) */
+ case 0x2e736e64:{ /* ".snd" */
+ auparse->endianness = G_BIG_ENDIAN;
+ break;
+ }
+ /* and of course, someone had to invent a little endian
+ * version. Used by DEC systems. */
+ case 0x646e732e: /* dns. */
+ case 0x0064732e:{ /* other source say it is "dns." */
+ auparse->endianness = G_LITTLE_ENDIAN;
+ break;
+ }
+ default:{
+ goto unknown_header;
+ }
+ }
+
+ auparse->offset = GST_READ_UINT32_BE (head + 4);
+ /* Do not trust size, could be set to -1 : unknown */
+ size = GST_READ_UINT32_BE (head + 8);
+ auparse->encoding = GST_READ_UINT32_BE (head + 12);
+ auparse->samplerate = GST_READ_UINT32_BE (head + 16);
+ auparse->channels = GST_READ_UINT32_BE (head + 20);
+
+ GST_DEBUG_OBJECT (auparse, "offset %ld, size %u, encoding %u, "
+ "frequency %u, channels %u", auparse->offset, size,
+ auparse->encoding, auparse->samplerate, auparse->channels);
+
+ /* Docs:
+ * http://www.opengroup.org/public/pubs/external/auformat.html
+ * http://astronomy.swin.edu.au/~pbourke/dataformats/au/
+ * Solaris headers : /usr/include/audio/au.h
+ * libsndfile : src/au.c
+ *
+ * Samples :
+ * http://www.tsp.ece.mcgill.ca/MMSP/Documents/AudioFormats/AU/Samples.html
+ */
+
+ auparse->float_swap = 0;
+
+ switch (auparse->encoding) {
+ case 1: /* 8-bit ISDN mu-law G.711 */
+ law = 1;
+ depth = 8;
+ break;
+ case 27: /* 8-bit ISDN A-law G.711 */
+ law = 2;
+ depth = 8;
+ break;
+
+ case 2: /* 8-bit linear PCM */
+ depth = 8;
+ break;
+ case 3: /* 16-bit linear PCM */
+ depth = 16;
+ break;
+ case 4: /* 24-bit linear PCM */
+ depth = 24;
+ break;
+ case 5: /* 32-bit linear PCM */
+ depth = 32;
+ break;
+
+ case 6: /* 32-bit IEEE floating point */
+ ieee = 1;
+ depth = 32;
+ break;
+ case 7: /* 64-bit IEEE floating point */
+ ieee = 1;
+ depth = 64;
+ break;
+
+ case 23: /* 4-bit CCITT G.721 ADPCM 32kbps -> modplug/libsndfile (compressed 8-bit mu-law) */
+ strcpy (layout, "g721");
+ break;
+ case 24: /* 8-bit CCITT G.722 ADPCM -> rtp */
+ strcpy (layout, "g722");
+ break;
+ case 25: /* 3-bit CCITT G.723.3 ADPCM 24kbps -> rtp/xine/modplug/libsndfile */
+ strcpy (layout, "g723_3");
+ break;
+ case 26: /* 5-bit CCITT G.723.5 ADPCM 40kbps -> rtp/xine/modplug/libsndfile */
+ strcpy (layout, "g723_5");
+ break;
+
+ case 8: /* Fragmented sample data */
+ case 9: /* AU_ENCODING_NESTED */
+
+ case 10: /* DSP program */
+ case 11: /* DSP 8-bit fixed point */
+ case 12: /* DSP 16-bit fixed point */
+ case 13: /* DSP 24-bit fixed point */
+ case 14: /* DSP 32-bit fixed point */
+
+ case 16: /* AU_ENCODING_DISPLAY : non-audio display data */
+ case 17: /* AU_ENCODING_MULAW_SQUELCH */
+
+ case 18: /* 16-bit linear with emphasis */
+ case 19: /* 16-bit linear compressed (NeXT) */
+ case 20: /* 16-bit linear with emphasis and compression */
+
+ case 21: /* Music kit DSP commands */
+ case 22: /* Music kit DSP commands samples */
+
+ default:
+ goto unknown_format;
+ }
+
+ if (law) {
+ tempcaps =
+ gst_caps_new_simple ((law == 1) ? "audio/x-mulaw" : "audio/x-alaw",
+ "rate", G_TYPE_INT, auparse->samplerate,
+ "channels", G_TYPE_INT, auparse->channels, NULL);
+ auparse->sample_size = auparse->channels;
+ } else if (ieee) {
+ tempcaps = gst_caps_new_simple ("audio/x-raw-float",
+ "rate", G_TYPE_INT, auparse->samplerate,
+ "channels", G_TYPE_INT, auparse->channels,
+ "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->samplerate,
+ "channels", G_TYPE_INT, auparse->channels,
+ "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_DEBUG_OBJECT (auparse, "sample_size=%d", auparse->sample_size);
+
+ if (!gst_au_parse_add_srcpad (auparse, tempcaps))
+ goto add_pad_failed;
+
+ GST_DEBUG_OBJECT (auparse, "offset=%ld", auparse->offset);
+ gst_adapter_flush (auparse->adapter, auparse->offset);
+
+ gst_caps_unref (tempcaps);
+ return GST_FLOW_OK;
+
+ /* ERRORS */
+unknown_header:
+ {
+ GST_ELEMENT_ERROR (auparse, STREAM, WRONG_TYPE, (NULL), (NULL));
+ return GST_FLOW_ERROR;
+ }
+unknown_format:
+ {
+ GST_ELEMENT_ERROR (auparse, STREAM, FORMAT, (NULL), (NULL));
+ 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));
- data = GST_BUFFER_DATA (buf);
- size = GST_BUFFER_SIZE (buf);
+ GST_LOG_OBJECT (auparse, "got buffer of size %u", GST_BUFFER_SIZE (buf));
- GST_DEBUG_OBJECT (auparse, "got buffer of size %ld", size);
+ gst_adapter_push (auparse->adapter, buf);
+ buf = NULL;
/* if we haven't seen any data yet... */
- if (auparse->size == 0) {
- guint32 *head = (guint32 *) data;
-
- /* FIXME, check if we have enough data (with adapter?) instead of
- * crashing. */
- /* normal format is big endian (au is a Sparc format) */
- if (GST_READ_UINT32_BE (head) == 0x2e736e64) { /* ".snd" */
- head++;
- auparse->le = 0;
- auparse->offset = GST_READ_UINT32_BE (head);
- head++;
- /* Do not trust size, could be set to -1 : unknown */
- auparse->size = GST_READ_UINT32_BE (head);
- head++;
- auparse->encoding = GST_READ_UINT32_BE (head);
- head++;
- auparse->frequency = GST_READ_UINT32_BE (head);
- head++;
- auparse->channels = GST_READ_UINT32_BE (head);
- head++;
+ 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;
+ }
- /* and of course, someone had to invent a little endian
- * version. Used by DEC systems. */
- } else if (GST_READ_UINT32_LE (head) == 0x0064732E) { /* other source say it is "dns." */
- head++;
- auparse->le = 1;
- auparse->offset = GST_READ_UINT32_LE (head);
- head++;
- /* Do not trust size, could be set to -1 : unknown */
- auparse->size = GST_READ_UINT32_LE (head);
- head++;
- auparse->encoding = GST_READ_UINT32_LE (head);
- head++;
- auparse->frequency = GST_READ_UINT32_LE (head);
- head++;
- auparse->channels = GST_READ_UINT32_LE (head);
- head++;
-
- } else {
- goto unknown_header;
+ 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;
}
- GST_DEBUG
- ("offset %ld, size %ld, encoding %ld, frequency %ld, channels %ld\n",
- auparse->offset, auparse->size, auparse->encoding, auparse->frequency,
- auparse->channels);
-
-/*
-Docs :
- http://www.opengroup.org/public/pubs/external/auformat.html
- http://astronomy.swin.edu.au/~pbourke/dataformats/au/
- Solaris headers : /usr/include/audio/au.h
- libsndfile : src/au.c
-Samples :
- http://www.tsp.ece.mcgill.ca/MMSP/Documents/AudioFormats/AU/Samples.html
-*/
-
- switch (auparse->encoding) {
-
- case 1: /* 8-bit ISDN mu-law G.711 */
- law = 1;
- depth = 8;
- break;
- case 27: /* 8-bit ISDN A-law G.711 */
- law = 2;
- depth = 8;
- break;
+ data = gst_adapter_peek (auparse->adapter, sendnow);
- case 2: /* 8-bit linear PCM */
- depth = 8;
- break;
- case 3: /* 16-bit linear PCM */
- depth = 16;
+ /* 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 4: /* 24-bit linear PCM */
- depth = 24;
+ }
+ 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;
- case 5: /* 32-bit linear PCM */
- depth = 32;
+ }
+ default:{
+ memcpy (GST_BUFFER_DATA (outbuf), data, sendnow);
break;
+ }
+ }
- case 6: /* 32-bit IEEE floating point */
- ieee = 1;
- depth = 32;
- break;
- case 7: /* 64-bit IEEE floating point */
- ieee = 1;
- depth = 64;
- break;
+ gst_adapter_flush (auparse->adapter, sendnow);
- case 23: /* 4-bit CCITT G.721 ADPCM 32kbps -> modplug/libsndfile (compressed 8-bit mu-law) */
- strcpy (layout, "g721");
- break;
- case 24: /* 8-bit CCITT G.722 ADPCM -> rtp */
- strcpy (layout, "g722");
- break;
- case 25: /* 3-bit CCITT G.723.3 ADPCM 24kbps -> rtp/xine/modplug/libsndfile */
- strcpy (layout, "g723_3");
- break;
- case 26: /* 5-bit CCITT G.723.5 ADPCM 40kbps -> rtp/xine/modplug/libsndfile */
- strcpy (layout, "g723_5");
- break;
+ auparse->buffer_offset += sendnow;
- case 8: /* Fragmented sample data */
- case 9: /* AU_ENCODING_NESTED */
+ ret = gst_pad_push (auparse->srcpad, outbuf);
+ }
- case 10: /* DSP program */
- case 11: /* DSP 8-bit fixed point */
- case 12: /* DSP 16-bit fixed point */
- case 13: /* DSP 24-bit fixed point */
- case 14: /* DSP 32-bit fixed point */
+out:
- case 16: /* AU_ENCODING_DISPLAY : non-audio display data */
- case 17: /* AU_ENCODING_MULAW_SQUELCH */
+ gst_object_unref (auparse);
+ return ret;
+}
- case 18: /* 16-bit linear with emphasis */
- case 19: /* 16-bit linear compressed (NeXT) */
- case 20: /* 16-bit linear with emphasis and compression */
+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;
- case 21: /* Music kit DSP commands */
- case 22: /* Music kit DSP commands samples */
+ if (dest_format == src_format) {
+ *destval = srcval;
+ return TRUE;
+ }
- default:
- goto unknown_format;
- }
+ 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;
+ }
- if (law) {
- tempcaps =
- gst_caps_new_simple ((law == 1) ? "audio/x-mulaw" : "audio/x-alaw",
- "rate", G_TYPE_INT, auparse->frequency,
- "channels", G_TYPE_INT, auparse->channels, NULL);
- auparse->sample_size = auparse->channels;
- } else if (ieee) {
- tempcaps = gst_caps_new_simple ("audio/x-raw-float",
- "rate", G_TYPE_INT, auparse->frequency,
- "channels", G_TYPE_INT, auparse->channels,
- "endianness", G_TYPE_INT,
- auparse->le ? G_LITTLE_ENDIAN : G_BIG_ENDIAN,
- "width", G_TYPE_INT, depth, NULL);
- auparse->sample_size = auparse->channels * depth / 8;
- } 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,
- "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);
- auparse->sample_size = auparse->channels * depth / 8;
+ 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;
}
+ }
- gst_pad_set_caps (auparse->srcpad, tempcaps);
+ 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));
+ }
-#if 0
- {
- GstEvent *event;
+ 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);
- event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_DEFAULT,
- 0, GST_CLOCK_TIME_NONE, 0);
+ ret = gst_au_parse_src_convert (auparse, GST_FORMAT_BYTES, len,
+ format, &val);
- gst_pad_push_event (auparse->srcpad, event);
+ if (ret) {
+ gst_query_set_duration (query, format, val);
+ }
+ break;
}
-#endif
+ 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);
- databuf = gst_buffer_create_sub (buf, auparse->offset,
- size - auparse->offset);
+ ret = gst_au_parse_src_convert (auparse, GST_FORMAT_BYTES, pos,
+ format, &val);
- gst_buffer_unref (buf);
- buf = NULL;
- } else {
- databuf = buf;
- buf = NULL;
+ if (ret) {
+ gst_query_set_position (query, format, val);
+ }
+ break;
+ }
+ default:
+ ret = gst_pad_query_default (pad, query);
+ break;
}
- if (auparse->sample_size) {
- int avail;
+ gst_object_unref (auparse);
+ return ret;
+}
- gst_adapter_push (auparse->adapter, databuf);
+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;
- /* 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;
+ gst_event_parse_seek (event, &rate, &format, &flags, &start_type, &start,
+ &stop_type, &stop);
- if (avail > 0) {
- const guint8 *data = gst_adapter_peek (auparse->adapter, avail);
- GstBuffer *newbuf;
+ if (format != GST_FORMAT_TIME) {
+ GST_DEBUG_OBJECT (auparse, "only support seeks in TIME format");
+ return FALSE;
+ }
- if ((ret =
- gst_pad_alloc_buffer_and_set_caps (auparse->srcpad,
- auparse->buffer_offset, avail, GST_PAD_CAPS (auparse->srcpad),
- &newbuf)) == GST_FLOW_OK) {
+ /* FIXME: implement seeking */
+ return FALSE;
+}
- memcpy (GST_BUFFER_DATA (newbuf), data, avail);
- gst_adapter_flush (auparse->adapter, avail);
+static gboolean
+gst_au_parse_sink_event (GstPad * pad, GstEvent * event)
+{
+ GstAuParse *auparse;
+ gboolean ret;
- auparse->buffer_offset += avail;
+ auparse = GST_AU_PARSE (gst_pad_get_parent (pad));
- 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);
+ switch (GST_EVENT_TYPE (event)) {
+ default:
+ ret = gst_pad_event_default (pad, event);
+ break;
}
gst_object_unref (auparse);
-
return ret;
+}
- /* 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;
+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
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;
}
projects / platform / upstream / gst-plugins-good.git / commitdiff