summaryrefslogtreecommitdiffstats
path: root/ext
diff options
context:
space:
mode:
Diffstat (limited to 'ext')
-rw-r--r--ext/gsm/gstgsm.c14
-rw-r--r--ext/gsm/gstgsmdec.c92
-rw-r--r--ext/gsm/gstgsmdec.h10
-rw-r--r--ext/gsm/gstgsmenc.c144
-rw-r--r--ext/gsm/gstgsmenc.h7
5 files changed, 89 insertions, 178 deletions
diff --git a/ext/gsm/gstgsm.c b/ext/gsm/gstgsm.c
index c71dacb0..60140716 100644
--- a/ext/gsm/gstgsm.c
+++ b/ext/gsm/gstgsm.c
@@ -1,5 +1,7 @@
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+/*
+ * Farsight
+ * GStreamer GSM encoder/decoder (uses WAV49 compiled libgsm)
+ * Copyright (C) 2005 Philippe Khalaf <burger@speedy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@@ -29,14 +31,14 @@ plugin_init (GstPlugin * plugin)
{
if (!gst_element_register (plugin, "gsmenc", GST_RANK_NONE, GST_TYPE_GSMENC))
return FALSE;
- if (!gst_element_register (plugin, "gsmdec", GST_RANK_PRIMARY,
- GST_TYPE_GSMDEC))
+ if (!gst_element_register (plugin, "gsmdec", GST_RANK_NONE, GST_TYPE_GSMDEC))
return FALSE;
+
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"gsm",
- "GSM Elements Plugin",
- plugin_init, VERSION, "LGPL", GST_PACKAGE, GST_ORIGIN)
+ "GSM encoder/decoder",
+ plugin_init, VERSION, "LGPL", "Farsight", "http://farsight.sf.net")
diff --git a/ext/gsm/gstgsmdec.c b/ext/gsm/gstgsmdec.c
index f3ce9cf5..c2ff695d 100644
--- a/ext/gsm/gstgsmdec.c
+++ b/ext/gsm/gstgsmdec.c
@@ -1,5 +1,7 @@
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+/*
+ * Farsight
+ * GStreamer GSM decoder
+ * Copyright (C) 2005 Philippe Khalaf <burger@speedy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@@ -25,12 +27,15 @@
#include "gstgsmdec.h"
+GST_DEBUG_CATEGORY (gsmdec_debug);
+#define GST_CAT_DEFAULT (gsmdec_debug)
+
/* elementfactory information */
GstElementDetails gst_gsmdec_details = {
"GSM audio decoder",
"Codec/Decoder/Audio",
"Decodes GSM encoded audio",
- "Wim Taymans <wim.taymans@chello.be>",
+ "Philippe Khalaf <burger@speedy.org>",
};
/* GSMDec signals and args */
@@ -42,15 +47,15 @@ enum
enum
{
+ /* FILL ME */
ARG_0
- /* FILL ME */
};
static void gst_gsmdec_base_init (gpointer g_class);
static void gst_gsmdec_class_init (GstGSMDec * klass);
static void gst_gsmdec_init (GstGSMDec * gsmdec);
-static GstFlowReturn gst_gsmdec_chain (GstPad * pad, GstBuffer * buffer);
+static GstFlowReturn gst_gsmdec_chain (GstPad * pad, GstBuffer * buf);
static GstElementClass *parent_class = NULL;
@@ -118,13 +123,13 @@ gst_gsmdec_class_init (GstGSMDec * klass)
gstelement_class = (GstElementClass *) klass;
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+
+ GST_DEBUG_CATEGORY_INIT (gsmdec_debug, "gsmdec", 0, "GSM Decoder");
}
static void
gst_gsmdec_init (GstGSMDec * gsmdec)
{
- GST_DEBUG ("gst_gsmdec_init: initializing");
-
/* create the sink and src pads */
gsmdec->sinkpad =
gst_pad_new_from_template (gst_static_pad_template_get
@@ -138,72 +143,63 @@ gst_gsmdec_init (GstGSMDec * gsmdec)
gst_element_add_pad (GST_ELEMENT (gsmdec), gsmdec->srcpad);
gsmdec->state = gsm_create ();
- gsmdec->bufsize = 0;
- gsmdec->next_ts = 0;
+ // turn on WAN49 handling
+ gint use_wav49 = 0;
+
+ gsm_option (gsmdec->state, GSM_OPT_WAV49, &use_wav49);
+
gsmdec->next_of = 0;
+ gsmdec->next_ts = 0;
}
static GstFlowReturn
gst_gsmdec_chain (GstPad * pad, GstBuffer * buf)
{
GstGSMDec *gsmdec;
+ gsm_byte *data;
+
+ g_return_val_if_fail (GST_IS_PAD (pad), GST_FLOW_ERROR);
gsmdec = GST_GSMDEC (gst_pad_get_parent (pad));
+ g_return_val_if_fail (GST_IS_GSMDEC (gsmdec), GST_FLOW_ERROR);
- gsm_byte *data = (gsm_byte *) GST_BUFFER_DATA (buf);
- guint size = GST_BUFFER_SIZE (buf);
+ g_return_val_if_fail (GST_PAD_IS_LINKED (gsmdec->srcpad), GST_FLOW_ERROR);
- if (gsmdec->bufsize && (gsmdec->bufsize + size >= 33)) {
+ // do we have enough bytes to read a header
+ if (GST_BUFFER_SIZE (buf) >= 33) {
GstBuffer *outbuf;
- memcpy (gsmdec->buffer + gsmdec->bufsize, data,
- (33 - gsmdec->bufsize) * sizeof (gsm_byte));
-
outbuf = gst_buffer_new_and_alloc (160 * sizeof (gsm_signal));
- GST_BUFFER_TIMESTAMP (outbuf) = gsmdec->next_ts;
- GST_BUFFER_DURATION (outbuf) = 20 * GST_MSECOND;
- GST_BUFFER_OFFSET (outbuf) = gsmdec->next_of;
- GST_BUFFER_OFFSET_END (outbuf) = gsmdec->next_of + 160 - 1;
- gst_buffer_set_caps (outbuf, gst_pad_get_caps (gsmdec->srcpad));
+ // TODO take new segment in consideration, if not given restart
+ // timestamps at 0
+ if (GST_BUFFER_TIMESTAMP (buf) == GST_CLOCK_TIME_NONE) {
+ /* If we are not given any timestamp */
+ GST_BUFFER_TIMESTAMP (outbuf) = gsmdec->next_ts;
+ gsmdec->next_ts += 20 * GST_MSECOND;
+ }
+
+ else {
+ /* But if you insist on giving us a timestamp, you are welcome. */
+ GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
+ }
- gsmdec->next_ts += 20 * GST_MSECOND;
- gsmdec->next_of += 160;
-
- gsm_decode (gsmdec->state, gsmdec->buffer,
- (gsm_signal *) GST_BUFFER_DATA (outbuf));
-
- gst_pad_push (gsmdec->srcpad, outbuf);
-
- size -= (33 - gsmdec->bufsize);
- data += (33 - gsmdec->bufsize);
- gsmdec->bufsize = 0;
- }
-
- while (size >= 33) {
- GstBuffer *outbuf;
-
- outbuf = gst_buffer_new_and_alloc (160 * sizeof (gsm_signal));
- GST_BUFFER_TIMESTAMP (outbuf) = gsmdec->next_ts;
GST_BUFFER_DURATION (outbuf) = 20 * GST_MSECOND;
GST_BUFFER_OFFSET (outbuf) = gsmdec->next_of;
GST_BUFFER_OFFSET_END (outbuf) = gsmdec->next_of + 160 - 1;
gst_buffer_set_caps (outbuf, gst_pad_get_caps (gsmdec->srcpad));
-
- gsmdec->next_ts += 20 * GST_MSECOND;
gsmdec->next_of += 160;
+ data = (gsm_byte *) GST_BUFFER_DATA (buf);
gsm_decode (gsmdec->state, data, (gsm_signal *) GST_BUFFER_DATA (outbuf));
- gst_pad_push (gsmdec->srcpad, outbuf);
- size -= 33;
- data += 33;
+ GST_DEBUG ("Pushing buffer of size %d ts %" GST_TIME_FORMAT,
+ GST_BUFFER_SIZE (outbuf),
+ GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)));
+ //gst_util_dump_mem (GST_BUFFER_DATA(outbuf), GST_BUFFER_SIZE (outbuf));
+ gst_pad_push (gsmdec->srcpad, outbuf);
}
- if (size) {
- memcpy (gsmdec->buffer + gsmdec->bufsize, data, size * sizeof (gsm_byte));
- gsmdec->bufsize += size;
- }
+ gst_buffer_unref (buf);
return GST_FLOW_OK;
-
}
diff --git a/ext/gsm/gstgsmdec.h b/ext/gsm/gstgsmdec.h
index 4de6d9b6..b8767c74 100644
--- a/ext/gsm/gstgsmdec.h
+++ b/ext/gsm/gstgsmdec.h
@@ -1,5 +1,7 @@
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+/*
+ * Farsight
+ * GStreamer GSM decoder (uses WAV49 compiled libgsm)
+ * Copyright (C) 2005 Philippe Khalaf <burger@speedy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@@ -52,10 +54,8 @@ struct _GstGSMDec
GstPad *sinkpad, *srcpad;
gsm state;
- gsm_byte buffer[33];
- gint bufsize;
- GstClockTime next_ts;
gint64 next_of;
+ GstClockTime next_ts;
};
struct _GstGSMDecClass
diff --git a/ext/gsm/gstgsmenc.c b/ext/gsm/gstgsmenc.c
index 43d7f2db..c4a39e46 100644
--- a/ext/gsm/gstgsmenc.c
+++ b/ext/gsm/gstgsmenc.c
@@ -1,5 +1,7 @@
-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+/*
+ * Farsight
+ * GStreamer GSM encoder
+ * Copyright (C) 2005 Philippe Khalaf <burger@speedy.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@@ -25,26 +27,28 @@
#include "gstgsmenc.h"
+GST_DEBUG_CATEGORY (gsmenc_debug);
+#define GST_CAT_DEFAULT (gsmenc_debug)
+
/* elementfactory information */
GstElementDetails gst_gsmenc_details = {
"GSM audio encoder",
"Codec/Encoder/Audio",
- "Encodes audio using GSM",
- "Wim Taymans <wim.taymans@chello.be>",
+ "Encodes GSM audio",
+ "Philippe Khalaf <burger@speedy.org>",
};
/* GSMEnc signals and args */
enum
{
- FRAME_ENCODED,
/* FILL ME */
LAST_SIGNAL
};
enum
{
+ /* FILL ME */
ARG_0
- /* FILL ME */
};
static void gst_gsmenc_base_init (gpointer g_class);
@@ -54,10 +58,6 @@ static void gst_gsmenc_init (GstGSMEnc * gsmenc);
static GstFlowReturn gst_gsmenc_chain (GstPad * pad, GstBuffer * buf);
static GstElementClass *parent_class = NULL;
-static guint gst_gsmenc_signals[LAST_SIGNAL] = { 0 };
-
-static gboolean gst_gsmenc_sink_event (GstPad * pad, GstEvent * event);
-
GType
gst_gsmenc_get_type (void)
@@ -124,13 +124,9 @@ gst_gsmenc_class_init (GstGSMEnc * klass)
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
- gst_gsmenc_signals[FRAME_ENCODED] =
- g_signal_new ("frame-encoded", G_TYPE_FROM_CLASS (klass),
- G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GstGSMEncClass, frame_encoded), NULL,
- NULL, g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);
+ GST_DEBUG_CATEGORY_INIT (gsmenc_debug, "gsmenc", 0, "GSM Encoder");
}
-
static void
gst_gsmenc_init (GstGSMEnc * gsmenc)
{
@@ -140,7 +136,6 @@ gst_gsmenc_init (GstGSMEnc * gsmenc)
(&gsmenc_sink_template), "sink");
gst_element_add_pad (GST_ELEMENT (gsmenc), gsmenc->sinkpad);
gst_pad_set_chain_function (gsmenc->sinkpad, gst_gsmenc_chain);
- gst_pad_set_event_function (gsmenc->sinkpad, gst_gsmenc_sink_event);
gsmenc->srcpad =
gst_pad_new_from_template (gst_static_pad_template_get
@@ -148,42 +143,14 @@ gst_gsmenc_init (GstGSMEnc * gsmenc)
gst_element_add_pad (GST_ELEMENT (gsmenc), gsmenc->srcpad);
gsmenc->state = gsm_create ();
- gsmenc->bufsize = 0;
- gsmenc->next_ts = 0;
- gsmenc->firstBuf = TRUE;
-}
-
-static gboolean
-gst_gsmenc_sink_event (GstPad * pad, GstEvent * event)
-{
+ // turn on WAN49 handling
+ gint use_wav49 = 0;
- GstGSMEnc *gsmenc;
+ gsm_option (gsmenc->state, GSM_OPT_WAV49, &use_wav49);
- gsmenc = GST_GSMENC (GST_OBJECT_PARENT (pad));
- gboolean ret = TRUE;
-
- switch (GST_EVENT_TYPE (event)) {
- case GST_EVENT_EOS:
- {
- GST_STREAM_LOCK (pad);
- ret = gst_pad_push_event (gsmenc->srcpad, event);
- GST_STREAM_UNLOCK (pad);
- break;
- }
- case GST_EVENT_NEWSEGMENT:
- {
- /* drop the discontinuity */
- gst_event_unref (event);
- break;
- }
- default:
- {
- gst_pad_event_default (pad, event);
- break;
- }
- }
- return ret;
+ gsmenc->adapter = gst_adapter_new ();
+ gsmenc->next_ts = 0;
}
static GstFlowReturn
@@ -191,51 +158,18 @@ gst_gsmenc_chain (GstPad * pad, GstBuffer * buf)
{
GstGSMEnc *gsmenc;
gsm_signal *data;
- guint size;
- GstFlowReturn ret = GST_FLOW_OK;
- gsmenc = GST_GSMENC (gst_pad_get_parent (pad));
-
- data = (gsm_signal *) GST_BUFFER_DATA (buf);
- size = GST_BUFFER_SIZE (buf) / sizeof (gsm_signal);
-
- if (gsmenc->bufsize && (gsmenc->bufsize + size >= 160)) {
- GstBuffer *outbuf;
+ g_return_val_if_fail (GST_IS_PAD (pad), GST_FLOW_ERROR);
- memcpy (gsmenc->buffer + gsmenc->bufsize, data,
- (160 - gsmenc->bufsize) * sizeof (gsm_signal));
-
- outbuf = gst_buffer_new_and_alloc (33 * sizeof (gsm_byte));
- GST_BUFFER_TIMESTAMP (outbuf) = gsmenc->next_ts;
- GST_BUFFER_DURATION (outbuf) = 20 * GST_MSECOND;
- gsmenc->next_ts += 20 * GST_MSECOND;
-
- gsm_encode (gsmenc->state, gsmenc->buffer,
- (gsm_byte *) GST_BUFFER_DATA (outbuf));
-
- gst_buffer_set_caps (outbuf, GST_PAD_CAPS (gsmenc->srcpad));
-
- if (gsmenc->firstBuf) {
- gst_pad_push_event (gsmenc->srcpad,
- gst_event_new_newsegment (FALSE, 1.0, GST_FORMAT_DEFAULT,
- 0, GST_CLOCK_TIME_NONE, 0));
- gsmenc->firstBuf = FALSE;
- }
-
- ret = gst_pad_push (gsmenc->srcpad, outbuf);
+ gsmenc = GST_GSMENC (gst_pad_get_parent (pad));
+ g_return_val_if_fail (GST_IS_GSMENC (gsmenc), GST_FLOW_ERROR);
- if (ret != GST_FLOW_OK) {
- gst_buffer_unref (outbuf);
- goto error;
- }
+ g_return_val_if_fail (GST_PAD_IS_LINKED (gsmenc->srcpad), GST_FLOW_ERROR);
- size -= (160 - gsmenc->bufsize);
- data += (160 - gsmenc->bufsize);
- gsmenc->bufsize = 0;
+ gst_adapter_push (gsmenc->adapter, buf);
- }
+ while (gst_adapter_available (gsmenc->adapter) >= 320) {
- while (size >= 160) {
GstBuffer *outbuf;
outbuf = gst_buffer_new_and_alloc (33 * sizeof (gsm_byte));
@@ -243,34 +177,16 @@ gst_gsmenc_chain (GstPad * pad, GstBuffer * buf)
GST_BUFFER_DURATION (outbuf) = 20 * GST_MSECOND;
gsmenc->next_ts += 20 * GST_MSECOND;
+ // encode 160 16-bit samples into 33 bytes
+ data = (gsm_signal *) gst_adapter_peek (gsmenc->adapter, 320);
gsm_encode (gsmenc->state, data, (gsm_byte *) GST_BUFFER_DATA (outbuf));
+ gst_adapter_flush (gsmenc->adapter, 320);
- gst_buffer_set_caps (outbuf, GST_PAD_CAPS (gsmenc->srcpad));
- if (gsmenc->firstBuf) {
- gst_pad_push_event (gsmenc->srcpad,
- gst_event_new_newsegment (FALSE, 1.0, GST_FORMAT_DEFAULT,
- 0, GST_CLOCK_TIME_NONE, 0));
- gsmenc->firstBuf = FALSE;
- }
- ret = gst_pad_push (gsmenc->srcpad, outbuf);
-
- if (ret != GST_FLOW_OK) {
- gst_buffer_unref (outbuf);
- goto error;
- }
-
- size -= 160;
- data += 160;
+ gst_buffer_set_caps (outbuf, gst_pad_get_caps (gsmenc->srcpad));
+ GST_DEBUG ("Pushing buffer of size %d", GST_BUFFER_SIZE (outbuf));
+ //gst_util_dump_mem (GST_BUFFER_DATA(outbuf), GST_BUFFER_SIZE (outbuf));
+ gst_pad_push (gsmenc->srcpad, outbuf);
}
- if (size) {
- memcpy (gsmenc->buffer + gsmenc->bufsize, data, size * sizeof (gsm_signal));
- gsmenc->bufsize += size;
- }
-
-error:
-
- gst_object_unref (gsmenc);
- return ret;
-
+ return GST_FLOW_OK;
}
diff --git a/ext/gsm/gstgsmenc.h b/ext/gsm/gstgsmenc.h
index a5f1f87e..af30c80c 100644
--- a/ext/gsm/gstgsmenc.h
+++ b/ext/gsm/gstgsmenc.h
@@ -21,6 +21,7 @@
#define __GST_GSMENC_H__
#include <gst/gst.h>
+#include <gst/base/gstadapter.h>
#ifdef GSM_HEADER_IN_SUBDIR
#include <gsm/gsm.h>
@@ -50,10 +51,9 @@ struct _GstGSMEnc
/* pads */
GstPad *sinkpad, *srcpad;
+ GstAdapter *adapter;
gsm state;
- gsm_signal buffer[160];
- gint bufsize;
GstClockTime next_ts;
gboolean firstBuf;
};
@@ -61,9 +61,6 @@ struct _GstGSMEnc
struct _GstGSMEncClass
{
GstElementClass parent_class;
-
- /* signals */
- void (*frame_encoded) (GstElement * element);
};
GType gst_gsmenc_get_type (void);
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-01 06:13:39 +0000