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/*****************************************************************
* gmerlin-encoders - encoder plugins for gmerlin
*
* Copyright (c) 2001 - 2012 Members of the Gmerlin project
* gmerlin-general@lists.sourceforge.net
* http://gmerlin.sourceforge.net
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* *****************************************************************/
#include <string.h>
#include <stdlib.h>
#include <config.h>
#include <gmerlin/translation.h>
#include <gmerlin/plugin.h>
#include <gmerlin/pluginfuncs.h>
#include <gmerlin/utils.h>
#include <gmerlin/subprocess.h>
#include <gmerlin/log.h>
#define LOG_DOMAIN "e_mpegaudio"
#include <gmerlin_encoders.h>
#include "mpa_common.h"
typedef struct
{
char * filename;
bg_mpa_common_t com;
bg_encoder_callbacks_t * cb;
const gavl_compression_info_t * ci;
} e_mpa_t;
static void * create_mpa()
{
e_mpa_t * ret;
ret = calloc(1, sizeof(*ret));
return ret;
}
static void destroy_mpa(void * priv)
{
e_mpa_t * mpa;
mpa = priv;
free(mpa);
}
static void set_callbacks_mpa(void * data, bg_encoder_callbacks_t * cb)
{
e_mpa_t * mpa = data;
mpa->cb = cb;
}
static void set_parameter_mpa(void * data, const char * name,
const gavl_value_t * v)
{
e_mpa_t * mpa;
mpa = data;
if(!name)
{
return;
}
bg_mpa_set_parameter(&mpa->com, name, v);
}
static int open_mpa(void * data, const char * filename,
const gavl_dictionary_t * metadata,
const gavl_chapter_list_t * chapter_list)
{
e_mpa_t * mpa;
mpa = data;
mpa->filename =
bg_filename_ensure_extension(filename,
bg_mpa_get_extension(&mpa->com));
if(!bg_encoder_cb_create_output_file(mpa->cb, mpa->filename))
return 0;
return 1;
}
static int add_audio_stream_mpa(void * data,
const gavl_dictionary_t * m,
const gavl_audio_format_t * format)
{
e_mpa_t * mpa;
mpa = data;
bg_mpa_set_format(&mpa->com, format);
return 0;
}
static int add_audio_stream_compressed_mpa(void * data,
const gavl_dictionary_t * m,
const gavl_audio_format_t * format,
const gavl_compression_info_t * ci)
{
e_mpa_t * mpa;
mpa = data;
bg_mpa_set_ci(&mpa->com, ci);
return 0;
}
static int start_mpa(void * data)
{
int result;
e_mpa_t * e = data;
result = bg_mpa_start(&e->com, e->filename);
if(!result)
gavl_log(GAVL_LOG_ERROR, LOG_DOMAIN, "Cannot find mp2enc executable");
return result;
}
static int writes_compressed_audio_mpa(void * priv,
const gavl_audio_format_t * format,
const gavl_compression_info_t * info)
{
switch(info->id)
{
case GAVL_CODEC_ID_MP2:
return 1;
default:
break;
}
return 0;
}
static gavl_audio_sink_t * get_audio_sink_mpa(void * data, int stream)
{
e_mpa_t * mpa;
mpa = data;
return mpa->com.sink;
}
static gavl_packet_sink_t * get_audio_packet_sink_mpa(void * data, int stream)
{
e_mpa_t * mpa;
mpa = data;
return mpa->com.psink;
}
static int close_mpa(void * data, int do_delete)
{
int ret = 1;
e_mpa_t * mpa;
mpa = data;
if(!bg_mpa_close(&mpa->com))
ret = 0;
if(do_delete)
{
gavl_log(GAVL_LOG_INFO, LOG_DOMAIN, "Removing %s", mpa->filename);
remove(mpa->filename);
}
if(mpa->filename)
free(mpa->filename);
return ret;
}
static const bg_parameter_info_t * get_parameters_mpa(void * data)
{
return bg_mpa_get_parameters();
}
const bg_encoder_plugin_t the_plugin =
{
.common =
{
BG_LOCALE,
.name = "e_mpegaudio", /* Unique short name */
.long_name = TRS("MPEG-1 layer 1/2 audio encoder"),
.description = TRS("Encoder for elementary MPEG-1 layer 1/2 audio streams.\
Based on mjpegtools (http://mjpeg.sourceforge.net)."),
.type = BG_PLUGIN_ENCODER_AUDIO,
.flags = BG_PLUGIN_FILE,
.priority = 5,
.create = create_mpa,
.destroy = destroy_mpa,
.get_parameters = get_parameters_mpa,
.set_parameter = set_parameter_mpa,
},
.max_audio_streams = 1,
.max_video_streams = 0,
.writes_compressed_audio = writes_compressed_audio_mpa,
.set_callbacks = set_callbacks_mpa,
.open = open_mpa,
.add_audio_stream = add_audio_stream_mpa,
.add_audio_stream_compressed = add_audio_stream_compressed_mpa,
.get_audio_sink = get_audio_sink_mpa,
.get_audio_packet_sink = get_audio_packet_sink_mpa,
.start = start_mpa,
.close = close_mpa
};
/* Include this into all plugin modules exactly once
to let the plugin loader obtain the API version */
BG_GET_PLUGIN_API_VERSION;
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