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/* GStreamer
* Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
* Boston, MA 02110-1335, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/audio/gstaudiodecoder.h>
#include "gstomxaacdec.h"
GST_DEBUG_CATEGORY_STATIC (gst_omx_aac_dec_debug_category);
#define GST_CAT_DEFAULT gst_omx_aac_dec_debug_category
/* prototypes */
static gboolean gst_omx_aac_dec_set_format (GstOMXAudioDec * decoder,
GstOMXPort * port, GstCaps * caps);
/* class initialization */
G_DEFINE_TYPE_WITH_CODE (GstOMXAACDec, gst_omx_aac_dec, GST_TYPE_OMX_AUDIO_DEC,
GST_DEBUG_CATEGORY_INIT (gst_omx_aac_dec_debug_category, "omxaacdec", 0,
"debug category for omxaacdec element"));
static void
gst_omx_aac_dec_class_init (GstOMXAACDecClass * klass)
{
GstOMXAudioDecClass *omxdec_class = GST_OMX_AUDIO_DEC_CLASS (klass);
omxdec_class->set_format = GST_DEBUG_FUNCPTR (gst_omx_aac_dec_set_format);
omxdec_class->cdata.default_sink_template_caps = "audio/mpeg, "
"mpegversion = (int) {2,4}, "
"stream-format = (string) {raw, adts, adif}";
gst_element_class_set_static_metadata (GST_ELEMENT_CLASS (klass),
"OpenMax AAC decoder", "Codec/Decoder/Audio", "Decodes AAC audio streams",
"Jitendra Kumar <jitendrak@nvidia.com>");
gst_omx_set_default_role (&omxdec_class->cdata, "audio_decoder.eaacplus");
}
static void
gst_omx_aac_dec_init (GstOMXAACDec * omxaacdec)
{
}
static gboolean
gst_omx_aac_dec_set_format (GstOMXAudioDec * decoder, GstOMXPort * port,
GstCaps * caps)
{
GstOMXAACDec *self = GST_OMX_AAC_DEC (decoder);
OMX_AUDIO_PARAM_AACPROFILETYPE aac_profile;
OMX_PARAM_PORTDEFINITIONTYPE port_def;
OMX_ERRORTYPE err;
gst_omx_port_get_port_definition (port, &port_def);
port_def.format.audio.eEncoding = OMX_AUDIO_CodingAAC;
err = gst_omx_port_update_port_definition (port, &port_def);
if (err != OMX_ErrorNone) {
GST_ERROR_OBJECT (self,
"Failed to update port definition of component: %s (0x%08x)",
gst_omx_error_to_string (err), err);
return FALSE;
}
GST_OMX_INIT_STRUCT (&aac_profile);
aac_profile.nPortIndex = port->index;
err = gst_omx_component_get_parameter (decoder->dec, OMX_IndexParamAudioAac,
&aac_profile);
if (err != OMX_ErrorNone) {
GST_ERROR_OBJECT (self,
"Failed to get AAC parameters from component: %s (0x%08x)",
gst_omx_error_to_string (err), err);
return FALSE;
}
if (caps) {
GstStructure *s;
gint mpegversion = 0;
const gchar *profile_string, *stream_format_string;
if (gst_caps_is_empty (caps)) {
GST_ERROR_OBJECT (self, "Empty caps");
return FALSE;
}
s = gst_caps_get_structure (caps, 0);
if (gst_structure_get_int (s, "mpegversion", &mpegversion)) {
profile_string =
gst_structure_get_string (s,
((mpegversion == 2) ? "profile" : "base-profile"));
if (profile_string) {
if (g_str_equal (profile_string, "main")) {
aac_profile.eAACProfile = OMX_AUDIO_AACObjectMain;
} else if (g_str_equal (profile_string, "lc")) {
aac_profile.eAACProfile = OMX_AUDIO_AACObjectLC;
} else if (g_str_equal (profile_string, "ssr")) {
aac_profile.eAACProfile = OMX_AUDIO_AACObjectSSR;
} else if (g_str_equal (profile_string, "ltp")) {
aac_profile.eAACProfile = OMX_AUDIO_AACObjectLTP;
} else {
GST_ERROR_OBJECT (self, "Unsupported profile '%s'", profile_string);
return FALSE;
}
}
}
stream_format_string = gst_structure_get_string (s, "stream-format");
if (stream_format_string) {
if (g_str_equal (stream_format_string, "raw")) {
aac_profile.eAACStreamFormat = OMX_AUDIO_AACStreamFormatRAW;
} else if (g_str_equal (stream_format_string, "adts")) {
if (mpegversion == 2) {
aac_profile.eAACStreamFormat = OMX_AUDIO_AACStreamFormatMP2ADTS;
} else {
aac_profile.eAACStreamFormat = OMX_AUDIO_AACStreamFormatMP4ADTS;
}
} else if (g_str_equal (stream_format_string, "loas")) {
aac_profile.eAACStreamFormat = OMX_AUDIO_AACStreamFormatMP4LOAS;
} else if (g_str_equal (stream_format_string, "latm")) {
aac_profile.eAACStreamFormat = OMX_AUDIO_AACStreamFormatMP4LATM;
} else if (g_str_equal (stream_format_string, "adif")) {
aac_profile.eAACStreamFormat = OMX_AUDIO_AACStreamFormatADIF;
} else {
GST_ERROR_OBJECT (self, "Unsupported stream-format '%s'",
stream_format_string);
return FALSE;
}
}
}
err = gst_omx_component_set_parameter (decoder->dec, OMX_IndexParamAudioAac,
&aac_profile);
if (err != OMX_ErrorNone) {
GST_ERROR_OBJECT (self, "Error setting AAC parameters: %s (0x%08x)",
gst_omx_error_to_string (err), err);
return FALSE;
}
return TRUE;
}
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