mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-02-17 03:35:21 +00:00
Code Issues 1 Projects Releases Wiki Activity

omx: add gstomxmp3enc

Browse source 
Initial support and only tested with the software based
encoder OMX.Aratelia.audio_encoder.mp3 from Tizonia which
internally uses libmp3lame.

https://bugzilla.gnome.org/show_bug.cgi?id=782988
This commit is contained in:
Julien Isorce 2017-05-23 10:32:06 +01:00
parent 0aa4c9db4e
commit 02d493e859
4 changed files with 347 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
omx/Makefile.am
View file

@ -32,6 +32,7 @@ libgstomx_la_SOURCES = \
gstomxh263enc.c \
gstomxaacdec.c \
gstomxmp3dec.c \
gstomxmp3enc.c \
gstomxaacenc.c \
gstomxamrdec.c \
gstomxaudiosink.c \
@ -60,6 +61,7 @@ noinst_HEADERS = \
gstomxh263enc.h \
gstomxaacdec.h \
gstomxmp3dec.h \
gstomxmp3enc.h \
gstomxaacenc.h \
gstomxamrdec.h \
gstomxaudiosink.h \

2
omx/gstomx.c
View file

@ -41,6 +41,7 @@
#include "gstomxh263enc.h"
#include "gstomxaacdec.h"
#include "gstomxmp3dec.h"
#include "gstomxmp3enc.h"
#include "gstomxaacenc.h"
#include "gstomxamrdec.h"
#include "gstomxanalogaudiosink.h"
@ -2290,6 +2291,7 @@ static const GGetTypeFunction types[] = {
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_enc_get_type,
gst_omx_amr_dec_get_type
#ifdef HAVE_VP8
, gst_omx_vp8_dec_get_type

278
omx/gstomxmp3enc.c Normal file
View file

@ -0,0 +1,278 @@
/*
* Copyright (C) 2017
* Author: Julien Isorce <julien.isorce@gmail.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 "gstomxmp3enc.h"
GST_DEBUG_CATEGORY_STATIC (gst_omx_mp3_enc_debug_category);
#define GST_CAT_DEFAULT gst_omx_mp3_enc_debug_category
/* prototypes */
static void gst_omx_mp3_enc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_omx_mp3_enc_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_omx_mp3_enc_set_format (GstOMXAudioEnc * enc,
GstOMXPort * port, GstAudioInfo * info);
static GstCaps *gst_omx_mp3_enc_get_caps (GstOMXAudioEnc * enc,
GstOMXPort * port, GstAudioInfo * info);
static guint gst_omx_mp3_enc_get_num_samples (GstOMXAudioEnc * enc,
GstOMXPort * port, GstAudioInfo * info, GstOMXBuffer * buf);
enum
{
PROP_0,
PROP_BITRATE
};
#define DEFAULT_BITRATE (128)
/* class initialization */
#define DEBUG_INIT \
GST_DEBUG_CATEGORY_INIT (gst_omx_mp3_enc_debug_category, "omxmp3enc", 0, \
"debug category for gst-omx audio encoder base class");
G_DEFINE_TYPE_WITH_CODE (GstOMXMP3Enc, gst_omx_mp3_enc,
GST_TYPE_OMX_AUDIO_ENC, DEBUG_INIT);
static void
gst_omx_mp3_enc_class_init (GstOMXMP3EncClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstOMXAudioEncClass *audioenc_class = GST_OMX_AUDIO_ENC_CLASS (klass);
gobject_class->set_property = gst_omx_mp3_enc_set_property;
gobject_class->get_property = gst_omx_mp3_enc_get_property;
g_object_class_install_property (gobject_class, PROP_BITRATE,
g_param_spec_uint ("bitrate", "Bitrate (kb/s)",
"Bitrate in kbit/sec",
0, G_MAXUINT, DEFAULT_BITRATE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
GST_PARAM_MUTABLE_READY));
audioenc_class->set_format = GST_DEBUG_FUNCPTR (gst_omx_mp3_enc_set_format);
audioenc_class->get_caps = GST_DEBUG_FUNCPTR (gst_omx_mp3_enc_get_caps);
audioenc_class->get_num_samples =
GST_DEBUG_FUNCPTR (gst_omx_mp3_enc_get_num_samples);
audioenc_class->cdata.default_src_template_caps = "audio/mpeg, "
"mpegversion=(int)1, "
"layer=(int)3, "
"mpegaudioversion=(int)[1,3], "
"rate=(int)[8000,48000], " "channels=(int)[1,2]";
gst_element_class_set_static_metadata (element_class,
"OpenMAX MP3 Audio Encoder",
"Codec/Encoder/Audio",
"Encode AAC audio streams", "Julien Isorce <julien.isorce@gmail.com>");
gst_omx_set_default_role (&audioenc_class->cdata, "audio_encoder.mp3");
}
static void
gst_omx_mp3_enc_init (GstOMXMP3Enc * self)
{
self->mpegaudioversion = 1;
self->bitrate = DEFAULT_BITRATE;
}
static void
gst_omx_mp3_enc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstOMXMP3Enc *self = GST_OMX_MP3_ENC (object);
switch (prop_id) {
case PROP_BITRATE:
self->bitrate = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_omx_mp3_enc_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstOMXMP3Enc *self = GST_OMX_MP3_ENC (object);
switch (prop_id) {
case PROP_BITRATE:
g_value_set_uint (value, self->bitrate);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_omx_mp3_enc_set_format (GstOMXAudioEnc * enc, GstOMXPort * port,
GstAudioInfo * info)
{
GstOMXMP3Enc *self = GST_OMX_MP3_ENC (enc);
OMX_AUDIO_PARAM_MP3TYPE mp3_param;
GstCaps *peercaps;
OMX_ERRORTYPE err;
GST_OMX_INIT_STRUCT (&mp3_param);
mp3_param.nPortIndex = enc->enc_out_port->index;
err =
gst_omx_component_get_parameter (enc->enc, OMX_IndexParamAudioMp3,
&mp3_param);
if (err != OMX_ErrorNone) {
GST_ERROR_OBJECT (self,
"Failed to get MP# parameters from component: %s (0x%08x)",
gst_omx_error_to_string (err), err);
return FALSE;
}
peercaps = gst_pad_peer_query_caps (GST_AUDIO_ENCODER_SRC_PAD (self),
gst_pad_get_pad_template_caps (GST_AUDIO_ENCODER_SRC_PAD (self)));
if (peercaps) {
GstStructure *s;
gint mpegaudioversion = 0;
if (gst_caps_is_empty (peercaps)) {
gst_caps_unref (peercaps);
GST_ERROR_OBJECT (self, "Empty caps");
return FALSE;
}
s = gst_caps_get_structure (peercaps, 0);
if (gst_structure_get_int (s, "mpegaudioversion", &mpegaudioversion)) {
switch (mpegaudioversion) {
case 1:
mp3_param.eFormat = OMX_AUDIO_MP3StreamFormatMP1Layer3;
break;
case 2:
mp3_param.eFormat = OMX_AUDIO_MP3StreamFormatMP2Layer3;
break;
case 3:
mp3_param.eFormat = OMX_AUDIO_MP3StreamFormatMP2_5Layer3;
break;
default:
GST_ERROR_OBJECT (self, "Unsupported mpegaudioversion '%d'",
mpegaudioversion);
gst_caps_unref (peercaps);
return FALSE;
}
self->mpegaudioversion = mpegaudioversion;
}
gst_caps_unref (peercaps);
mp3_param.nSampleRate = info->rate;
mp3_param.nChannels = info->channels;
mp3_param.eChannelMode =
info->channels ==
1 ? OMX_AUDIO_ChannelModeMono : OMX_AUDIO_ChannelModeStereo;
}
mp3_param.nBitRate = self->bitrate;
err =
gst_omx_component_set_parameter (enc->enc, OMX_IndexParamAudioMp3,
&mp3_param);
if (err != OMX_ErrorNone) {
GST_ERROR_OBJECT (self, "Error setting MP3 parameters: %s (0x%08x)",
gst_omx_error_to_string (err), err);
return FALSE;
}
return TRUE;
}
static GstCaps *
gst_omx_mp3_enc_get_caps (GstOMXAudioEnc * enc, GstOMXPort * port,
GstAudioInfo * info)
{
GstCaps *caps;
OMX_ERRORTYPE err;
OMX_AUDIO_PARAM_MP3TYPE mp3_param;
gint mpegaudioversion = 0;
GST_OMX_INIT_STRUCT (&mp3_param);
mp3_param.nPortIndex = enc->enc_out_port->index;
err =
gst_omx_component_get_parameter (enc->enc, OMX_IndexParamAudioMp3,
&mp3_param);
if (err != OMX_ErrorNone) {
GST_ERROR_OBJECT (enc,
"Failed to get MP3 parameters from component: %s (0x%08x)",
gst_omx_error_to_string (err), err);
return NULL;
}
switch (mp3_param.eFormat) {
case OMX_AUDIO_MP3StreamFormatMP1Layer3:
mpegaudioversion = 1;
break;
case OMX_AUDIO_MP3StreamFormatMP2Layer3:
mpegaudioversion = 2;
break;
case OMX_AUDIO_MP3StreamFormatMP2_5Layer3:
mpegaudioversion = 3;
break;
default:
GST_ERROR_OBJECT (enc, "Unsupported mpegaudioversion %d",
mp3_param.eFormat);
break;
}
caps =
gst_caps_new_simple ("audio/mpeg", "mpegversion", G_TYPE_INT, 1, "layer",
G_TYPE_INT, 3, NULL);
if (mpegaudioversion != 0)
gst_caps_set_simple (caps, "mpegaudioversion", G_TYPE_INT, mpegaudioversion,
NULL);
if (mp3_param.nChannels != 0)
gst_caps_set_simple (caps, "channels", G_TYPE_INT, mp3_param.nChannels,
NULL);
if (mp3_param.nSampleRate != 0)
gst_caps_set_simple (caps, "rate", G_TYPE_INT, mp3_param.nSampleRate, NULL);
return caps;
}
static guint
gst_omx_mp3_enc_get_num_samples (GstOMXAudioEnc * enc, GstOMXPort * port,
GstAudioInfo * info, GstOMXBuffer * buf)
{
GstOMXMP3Enc *self = GST_OMX_MP3_ENC (enc);
return (self->mpegaudioversion == 1) ? 1152 : 576;
}

65
omx/gstomxmp3enc.h Normal file
View file

@ -0,0 +1,65 @@
/*
* Copyright (C) 2017
* Author: Julien Isorce <julien.isorce@gmail.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_MP3_ENC_H__
#define __GST_OMX_MP3_ENC_H__
#include <gst/gst.h>
#include "gstomxaudioenc.h"
G_BEGIN_DECLS
#define GST_TYPE_OMX_MP3_ENC \
(gst_omx_mp3_enc_get_type())
#define GST_OMX_MP3_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OMX_MP3_ENC,GstOMXMP3Enc))
#define GST_OMX_MP3_ENC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OMX_MP3_ENC,GstOMXMP3EncClass))
#define GST_OMX_MP3_ENC_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_OMX_MP3_ENC,GstOMXMP3EncClass))
#define GST_IS_OMX_MP3_ENC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OMX_MP3_ENC))
#define GST_IS_OMX_MP3_ENC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OMX_MP3_ENC))
typedef struct _GstOMXMP3Enc GstOMXMP3Enc;
typedef struct _GstOMXMP3EncClass GstOMXMP3EncClass;
struct _GstOMXMP3Enc
{
GstOMXAudioEnc parent;
guint mpegaudioversion;
/* properties */
guint bitrate;
};
struct _GstOMXMP3EncClass
{
GstOMXAudioEncClass parent_class;
};
GType gst_omx_mp3_enc_get_type (void);
G_END_DECLS
#endif /* __GST_OMX_MP3_ENC_H__ */