diff options
Diffstat (limited to 'xine_post_audiochannel.c')
| -rw-r--r-- | xine_post_audiochannel.c | 323 |
1 files changed, 0 insertions, 323 deletions
diff --git a/xine_post_audiochannel.c b/xine_post_audiochannel.c deleted file mode 100644 index 9326162b..00000000 --- a/xine_post_audiochannel.c +++ /dev/null @@ -1,323 +0,0 @@ -/* - * xine_post_audiochannel.c: xine post plugin - * - * See the main source file 'xineliboutput.c' for copyright information and - * how to reach the author. - * - * $Id: xine_post_audiochannel.c,v 1.6 2008-05-22 09:56:02 phintuka Exp $ - * - */ - -/* - * Copyright (C) 2006 the xine project - * - * This file is part of xine, a free video player. - * - * xine 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. - * - * xine 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, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA - * - * $Id: - * - * audio channel selection post plugin by Petri Hintukainen 01/09/2006 - * based on upmix.c - * - * Removes left or right channel from stereo audio track - * and fills both channels with same data. - * This is useful with some bi-lingual DVB transmissions where - * two different languages are sent on same (stereo) audio track. - * - */ - -#include <xine/xine_internal.h> -#include <xine/post.h> - - -typedef struct audioch_parameters_s { - int channel; -} audioch_parameters_t; - -START_PARAM_DESCR(audioch_parameters_t) -PARAM_ITEM(POST_PARAM_TYPE_BOOL, channel, NULL, 0, 1, 0, - "select channel (0=left, 1=right)") -END_PARAM_DESCR(audioch_param_descr) - - -typedef struct audioch_post_plugin_s -{ - post_plugin_t post_plugin; - xine_post_in_t parameter_input; - - /* Config */ - int channel; /* 0 - left, 1 - right */ - - /* Data */ - int channels; - -} audioch_post_plugin_t; - - -/* - * Port functions - */ -#if XINE_VERSION_CODE < 10200 -static int audioch_port_open(xine_audio_port_t *port_gen, xine_stream_t *stream, - uint32_t bits, uint32_t rate, int mode) -#else -static int audioch_port_open(xine_audio_port_t *port_gen, xine_stream_t *stream, - ao_format_t format) -#endif -{ - post_audio_port_t *port = (post_audio_port_t *)port_gen; - audioch_post_plugin_t *this = (audioch_post_plugin_t *)port->post; - - _x_post_rewire(&this->post_plugin); - _x_post_inc_usage(port); - - port->stream = stream; -#if XINE_VERSION_CODE < 10200 - port->bits = bits; - port->rate = rate; - port->mode = mode; - - this->channels = _x_ao_mode2channels(mode); - - return port->original_port->open(port->original_port, stream, bits, rate, mode ); -#else - port->format = format; - - this->num_channels = _x_ao_mode2channels(format.mode); - - return port->original_port->open(port->original_port, stream, format); -#endif - - -} - -static void audioch_port_put_buffer (xine_audio_port_t *port_gen, - audio_buffer_t *buf, xine_stream_t *stream) -{ - post_audio_port_t *port = (post_audio_port_t *)port_gen; - audioch_post_plugin_t *this = (audioch_post_plugin_t *)port->post; - int i; - - if(this->channels == 2) { -#if XINE_VERSION_CODE < 10200 - int step = buf->format.bits / 8; -#else - int step = sample_bytes_table[buf->format.sample_format]; -#endif - audio_buffer_t *newbuf = port->original_port->get_buffer(port->original_port); - newbuf->num_frames = buf->num_frames; - newbuf->vpts = buf->vpts; - newbuf->frame_header_count = buf->frame_header_count; - newbuf->first_access_unit = buf->first_access_unit; -#if XINE_VERSION_CODE < 10200 - newbuf->format.bits = buf->format.bits; - newbuf->format.rate = buf->format.rate; - newbuf->format.mode = buf->format.mode; -#else - newbuf->format = buf->format; -#endif - _x_extra_info_merge( newbuf->extra_info, buf->extra_info); - - switch(step) { - case 1: - for(i=0; i<buf->num_frames; i++) - newbuf->mem[i*2+1] = newbuf->mem[i*2] = buf->mem[i*2+this->channel]; - break; - case 2: - for(i=0; i<buf->num_frames; i++) - ((uint16_t*)newbuf->mem)[i*2+1] = - ((uint16_t*)newbuf->mem)[i*2] = ((uint16_t*)buf->mem)[i*2+this->channel]; - break; - case 3: - for(i=0; i<buf->num_frames*3; i+=3) { - newbuf->mem[i*2+0] = newbuf->mem[i*2+3] = buf->mem[i*2+0+3*this->channel]; - newbuf->mem[i*2+1] = newbuf->mem[i*2+4] = buf->mem[i*2+1+3*this->channel]; - newbuf->mem[i*2+2] = newbuf->mem[i*2+5] = buf->mem[i*2+2+3*this->channel]; - } - break; - case 4: - for(i=0; i<buf->num_frames; i++) - ((uint32_t*)newbuf->mem)[i*2+1] = - ((uint32_t*)newbuf->mem)[i*2] = ((uint32_t*)buf->mem)[i*2+this->channel]; - break; - default: /* ??? */ - memcpy(newbuf->mem, buf->mem, buf->num_frames*2*buf->format.bits); - break; - } - - /* pass data to original port */ - port->original_port->put_buffer(port->original_port, newbuf, stream ); - - /* free data from origial buffer */ - buf->num_frames=0; /* UNDOCUMENTED, but hey, it works! Force old audio_out buffer free. */ - } - - port->original_port->put_buffer(port->original_port, buf, stream ); -} - -/* - * Parameter functions - */ - -static xine_post_api_descr_t *audioch_get_param_descr(void) -{ - return &audioch_param_descr; -} - -static int audioch_set_parameters(xine_post_t *this_gen, void *param_gen) -{ - audioch_post_plugin_t *this = (audioch_post_plugin_t *)this_gen; - audioch_parameters_t *param = (audioch_parameters_t *)param_gen; - - this->channel = param->channel; - return 1; -} - -static int audioch_get_parameters(xine_post_t *this_gen, void *param_gen) -{ - audioch_post_plugin_t *this = (audioch_post_plugin_t *)this_gen; - audioch_parameters_t *param = (audioch_parameters_t *)param_gen; - - param->channel = this->channel; - return 1; -} - -static char *audioch_get_help(void) { - return _("The audiochannel plugin is meant to take stereo audio and \n" - "remove left or right channel by replacing both channels \n" - "with the same data. \n" - "\n" - "Parameters \n" - " channel: Select channel (left=0, right=1) \n" - "\n" - ); -} - - -/* - * Open / Close - */ - -static void audioch_dispose(post_plugin_t *this_gen) -{ - if (_x_post_dispose(this_gen)) - free(this_gen); -} - -static post_plugin_t *audioch_open_plugin(post_class_t *class_gen, - int inputs, - xine_audio_port_t **audio_target, - xine_video_port_t **video_target) -{ - audioch_post_plugin_t *this = calloc(1, sizeof(audioch_post_plugin_t)); - post_in_t *input; - post_out_t *output; - post_audio_port_t *port; - xine_post_in_t *input_param; - - static xine_post_api_t post_api = - { audioch_set_parameters, audioch_get_parameters, - audioch_get_param_descr, audioch_get_help }; - - if (!this || !audio_target || !audio_target[0] ) { - free(this); - return NULL; - } - - _x_post_init(&this->post_plugin, 1, 0); - - port = _x_post_intercept_audio_port(&this->post_plugin, - audio_target[ 0 ], - &input, &output); - - port->new_port.open = audioch_port_open; - port->new_port.put_buffer = audioch_port_put_buffer; - - input->xine_in.name = "audio in"; - output->xine_out.name = "audio out"; - - this->post_plugin.xine_post.audio_input[ 0 ] = &port->new_port; - this->post_plugin.dispose = audioch_dispose; - - input_param = &this->parameter_input; - input_param->name = "parameters"; - input_param->type = XINE_POST_DATA_PARAMETERS; - input_param->data = &post_api; -#if XINE_VERSION_CODE >= 10102 - xine_list_push_back(this->post_plugin.input, input_param); -#else - xine_list_append_content(this->post_plugin.input, input_param); -#endif - - this->channel = 0; - - this->channels = 0; - - return &this->post_plugin; -} - -/* - * Plugin class - */ - -#if POST_PLUGIN_IFACE_VERSION < 10 -static char *audioch_get_identifier(post_class_t *class_gen) -{ - return "audiochannel"; -} - -static char *audioch_get_description(post_class_t *class_gen) -{ - return "Select audio channel"; -} - -static void audioch_class_dispose(post_class_t *class_gen) -{ - free(class_gen); -} -#endif - -static void *audioch_init_plugin(xine_t *xine, void *data) -{ - post_class_t *class = calloc(1, sizeof(post_class_t)); - - if(!class) - return NULL; - - class->open_plugin = audioch_open_plugin; -#if POST_PLUGIN_IFACE_VERSION < 10 - class->get_identifier = audioch_get_identifier; - class->get_description = audioch_get_description; - class->dispose = audioch_class_dispose; -#else - class->identifier = "audiochannel"; - class->description = N_("Select audio channel"); - class->dispose = default_post_class_dispose; -#endif - - return class; -} - -static post_info_t audioch_info = { XINE_POST_TYPE_AUDIO_FILTER }; - -#ifndef NO_INFO_EXPORT -plugin_info_t xine_plugin_info[] __attribute__((visibility("default"))) = -{ - /* type, API, "name", version, special_info, init_function */ - { PLUGIN_POST, POST_PLUGIN_IFACE_VERSION, "audiochannel", XINE_VERSION_CODE, &audioch_info, &audioch_init_plugin }, - { PLUGIN_NONE, 0, "", 0, NULL, NULL } -}; -#endif |