omx: Add omxamrdec

https://bugzilla.gnome.org/show_bug.cgi?id=739333

omx/Makefile.am

@@ -32,6 +32,7 @@ libgstomx_la_SOURCES = \
 	gstomxaacdec.c \
 	gstomxmp3dec.c \
 	gstomxaacenc.c \
+	gstomxamrdec.c \
 	gstomxaudiosink.c \
 	gstomxanalogaudiosink.c \
 	gstomxhdmiaudiosink.c	
@@ -58,6 +59,7 @@ noinst_HEADERS = \
 	gstomxaacdec.h \
 	gstomxmp3dec.h \
 	gstomxaacenc.h \
+	gstomxamrdec.h \
 	gstomxaudiosink.h \
 	gstomxanalogaudiosink.h \
 	gstomxhdmiaudiosink.h 	

omx/gstomx.c

@@ -42,6 +42,7 @@
 #include "gstomxaacdec.h"
 #include "gstomxmp3dec.h"
 #include "gstomxaacenc.h"
+#include "gstomxamrdec.h"
 #include "gstomxanalogaudiosink.h"
 #include "gstomxhdmiaudiosink.h"
 
@@ -2247,7 +2248,8 @@ static const GGetTypeFunction types[] = {
   gst_omx_wmv_dec_get_type, gst_omx_mpeg4_video_enc_get_type,
   gst_omx_h264_enc_get_type, gst_omx_h263_enc_get_type,
   gst_omx_aac_enc_get_type, gst_omx_mjpeg_dec_get_type,
-  gst_omx_aac_dec_get_type, gst_omx_mp3_dec_get_type
+  gst_omx_aac_dec_get_type, gst_omx_mp3_dec_get_type,
+  gst_omx_amr_dec_get_type
 #ifdef HAVE_VP8
       , gst_omx_vp8_dec_get_type
 #endif

omx/gstomxamrdec.c

@@ -0,0 +1,220 @@
+/*
+ * Copyright (C) 2014, Sebastian Dröge <sebastian@centricular.com>
+ * Copyright (C) 2014, LG Electronics, Inc. <jun.ji@lge.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/gst.h>
+
+#include "gstomxamrdec.h"
+
+GST_DEBUG_CATEGORY_STATIC (gst_omx_amr_dec_debug_category);
+#define GST_CAT_DEFAULT gst_omx_amr_dec_debug_category
+
+/* prototypes */
+static gboolean gst_omx_amr_dec_set_format (GstOMXAudioDec * dec,
+    GstOMXPort * port, GstCaps * caps);
+static gboolean gst_omx_amr_dec_is_format_change (GstOMXAudioDec * dec,
+    GstOMXPort * port, GstCaps * caps);
+static gint gst_omx_amr_dec_get_samples_per_frame (GstOMXAudioDec * dec,
+    GstOMXPort * port);
+static gboolean gst_omx_amr_dec_get_channel_positions (GstOMXAudioDec * dec,
+    GstOMXPort * port, GstAudioChannelPosition position[OMX_AUDIO_MAXCHANNELS]);
+
+/* class initialization */
+
+#define DEBUG_INIT \
+  GST_DEBUG_CATEGORY_INIT (gst_omx_amr_dec_debug_category, "omxamrdec", 0, \
+      "debug category for gst-omx amr audio decoder");
+
+G_DEFINE_TYPE_WITH_CODE (GstOMXAMRDec, gst_omx_amr_dec,
+    GST_TYPE_OMX_AUDIO_DEC, DEBUG_INIT);
+
+static void
+gst_omx_amr_dec_class_init (GstOMXAMRDecClass * klass)
+{
+  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+  GstOMXAudioDecClass *audiodec_class = GST_OMX_AUDIO_DEC_CLASS (klass);
+
+  audiodec_class->set_format = GST_DEBUG_FUNCPTR (gst_omx_amr_dec_set_format);
+  audiodec_class->is_format_change =
+      GST_DEBUG_FUNCPTR (gst_omx_amr_dec_is_format_change);
+  audiodec_class->get_samples_per_frame =
+      GST_DEBUG_FUNCPTR (gst_omx_amr_dec_get_samples_per_frame);
+  audiodec_class->get_channel_positions =
+      GST_DEBUG_FUNCPTR (gst_omx_amr_dec_get_channel_positions);
+
+  audiodec_class->cdata.default_sink_template_caps =
+      "audio/AMR, rate=(int)8000, channels=(int)1; "
+      "audio/AMR-WB, rate=(int)16000, channels=(int)1";
+
+  gst_element_class_set_static_metadata (element_class,
+      "OpenMAX AMR Audio Decoder",
+      "Codec/Decoder/Audio",
+      "Decode AMR audio streams",
+      "Sebastian Dröge <sebastian@centricular.com>");
+
+  gst_omx_set_default_role (&audiodec_class->cdata, "audio_decoder.amrnb");
+}
+
+static void
+gst_omx_amr_dec_init (GstOMXAMRDec * self)
+{
+  self->spf = -1;
+}
+
+static gboolean
+gst_omx_amr_dec_set_format (GstOMXAudioDec * dec, GstOMXPort * port,
+    GstCaps * caps)
+{
+  GstOMXAMRDec *self = GST_OMX_AMR_DEC (dec);
+  OMX_PARAM_PORTDEFINITIONTYPE port_def;
+  OMX_AUDIO_PARAM_AMRTYPE amr_param;
+  OMX_ERRORTYPE err;
+  GstStructure *s;
+  gint rate, channels;
+
+  gst_omx_port_get_port_definition (port, &port_def);
+  port_def.format.audio.eEncoding = OMX_AUDIO_CodingAMR;        /* not tested for AMRWB */
+  err = gst_omx_port_update_port_definition (port, &port_def);
+  if (err != OMX_ErrorNone) {
+    GST_ERROR_OBJECT (self,
+        "Failed to set AMR format on component: %s (0x%08x)",
+        gst_omx_error_to_string (err), err);
+    return FALSE;
+  }
+
+  GST_OMX_INIT_STRUCT (&amr_param);
+  amr_param.nPortIndex = port->index;
+
+  err =
+      gst_omx_component_get_parameter (dec->dec, OMX_IndexParamAudioAmr,
+      &amr_param);
+  if (err != OMX_ErrorNone) {
+    GST_ERROR_OBJECT (self,
+        "Failed to get AMR parameters from component: %s (0x%08x)",
+        gst_omx_error_to_string (err), err);
+    return FALSE;
+  }
+
+  s = gst_caps_get_structure (caps, 0);
+
+  if (!gst_structure_get_int (s, "rate", &rate) ||
+      !gst_structure_get_int (s, "channels", &channels)) {
+    GST_ERROR_OBJECT (self, "Incomplete caps");
+    return FALSE;
+  }
+
+  self->rate = rate;
+
+  if (rate == 8000)
+    self->spf = 160;            /* (8000/50) */
+  else if (rate == 16000)
+    self->spf = 320;            /* (16000/50) */
+
+  amr_param.nChannels = channels;
+  amr_param.eAMRBandMode = 0;   /*FIXME: It may require a specific value */
+  amr_param.eAMRDTXMode = 0;
+  amr_param.eAMRFrameFormat = 0;
+
+  err =
+      gst_omx_component_set_parameter (dec->dec, OMX_IndexParamAudioAmr,
+      &amr_param);
+  if (err != OMX_ErrorNone) {
+    GST_ERROR_OBJECT (self, "Error setting AMR parameters: %s (0x%08x)",
+        gst_omx_error_to_string (err), err);
+    return FALSE;
+  }
+
+  return TRUE;
+}
+
+static gboolean
+gst_omx_amr_dec_is_format_change (GstOMXAudioDec * dec, GstOMXPort * port,
+    GstCaps * caps)
+{
+  GstOMXAMRDec *self = GST_OMX_AMR_DEC (dec);
+  OMX_AUDIO_PARAM_AMRTYPE amr_param;
+  OMX_ERRORTYPE err;
+  GstStructure *s;
+  gint rate, channels;
+
+  GST_OMX_INIT_STRUCT (&amr_param);
+  amr_param.nPortIndex = port->index;
+
+  err =
+      gst_omx_component_get_parameter (dec->dec, OMX_IndexParamAudioAmr,
+      &amr_param);
+  if (err != OMX_ErrorNone) {
+    GST_ERROR_OBJECT (self,
+        "Failed to get AMR parameters from component: %s (0x%08x)",
+        gst_omx_error_to_string (err), err);
+    return FALSE;
+  }
+
+  s = gst_caps_get_structure (caps, 0);
+
+  if (!gst_structure_get_int (s, "rate", &rate) ||
+      !gst_structure_get_int (s, "channels", &channels)) {
+    GST_ERROR_OBJECT (self, "Incomplete caps");
+    return FALSE;
+  }
+
+  if (self->rate != rate)
+    return TRUE;
+
+  if (amr_param.nChannels != channels)
+    return TRUE;
+
+  return FALSE;
+}
+
+static gint
+gst_omx_amr_dec_get_samples_per_frame (GstOMXAudioDec * dec, GstOMXPort * port)
+{
+  return GST_OMX_AMR_DEC (dec)->spf;
+}
+
+static gboolean
+gst_omx_amr_dec_get_channel_positions (GstOMXAudioDec * dec,
+    GstOMXPort * port, GstAudioChannelPosition position[OMX_AUDIO_MAXCHANNELS])
+{
+  OMX_AUDIO_PARAM_PCMMODETYPE pcm_param;
+  OMX_ERRORTYPE err;
+
+  GST_OMX_INIT_STRUCT (&pcm_param);
+  pcm_param.nPortIndex = port->index;
+  err =
+      gst_omx_component_get_parameter (dec->dec, OMX_IndexParamAudioPcm,
+      &pcm_param);
+  if (err != OMX_ErrorNone) {
+    GST_ERROR_OBJECT (dec, "Failed to get PCM parameters: %s (0x%08x)",
+        gst_omx_error_to_string (err), err);
+    return FALSE;
+  }
+
+
+  g_return_val_if_fail (pcm_param.nChannels == 1, FALSE);       /* AMR supports only mono */
+
+  position[0] = GST_AUDIO_CHANNEL_POSITION_MONO;
+
+  return TRUE;
+}

omx/gstomxamrdec.h

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2014, Sebastian Dröge <sebastian@centricular.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ *
+ */
+
+#ifndef __GST_OMX_AMR_DEC_H__
+#define __GST_OMX_AMR_DEC_H__
+
+#include <gst/gst.h>
+#include "gstomxaudiodec.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_OMX_AMR_DEC \
+  (gst_omx_amr_dec_get_type())
+#define GST_OMX_AMR_DEC(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OMX_AMR_DEC,GstOMXAMRDec))
+#define GST_OMX_AMR_DEC_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OMX_AMR_DEC,GstOMXAMRDecClass))
+#define GST_OMX_AMR_DEC_GET_CLASS(obj) \
+  (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_OMX_AMR_DEC,GstOMXAMRDecClass))
+#define GST_IS_OMX_AMR_DEC(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OMX_AMR_DEC))
+#define GST_IS_OMX_AMR_DEC_CLASS(obj) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OMX_AMR_DEC))
+
+typedef struct _GstOMXAMRDec GstOMXAMRDec;
+typedef struct _GstOMXAMRDecClass GstOMXAMRDecClass;
+
+struct _GstOMXAMRDec
+{
+  GstOMXAudioDec parent;
+  gint spf;
+  gint rate;
+};
+
+struct _GstOMXAMRDecClass
+{
+  GstOMXAudioDecClass parent_class;
+};
+
+GType gst_omx_amr_dec_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_OMX_AMR_DEC_H__ */
+