diff options
Diffstat (limited to 'src/libdts/xine_decoder.c')
| -rw-r--r-- | src/libdts/xine_decoder.c | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/src/libdts/xine_decoder.c b/src/libdts/xine_decoder.c new file mode 100644 index 000000000..e0d3d0520 --- /dev/null +++ b/src/libdts/xine_decoder.c @@ -0,0 +1,139 @@ +/* + * Copyright (C) 2000-2001 the xine project + * + * This file is part of xine, a unix 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: xine_decoder.c,v 1.1 2001/09/06 15:23:14 joachim_koenig Exp $ + * + * 04-09-2001 DTS passtrough (C) Joachim Koenig + * + */ + + +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <netinet/in.h> /* ntohs */ +#include "audio_out.h" +#include "buffer.h" +#include "xine_internal.h" + + +typedef struct dts_decoder_s { + audio_decoder_t audio_decoder; + + uint32_t pts; + uint32_t rate; + uint32_t bits_per_sample; + uint32_t number_of_channels; + uint32_t audio_caps; + + ao_instance_t *audio_out; + int output_open; +} dts_decoder_t; + +int dts_can_handle (audio_decoder_t *this_gen, int buf_type) { + buf_type &= 0xFFFF0000; + + return ( buf_type == BUF_AUDIO_DTS); +} + + +void dts_init (audio_decoder_t *this_gen, ao_instance_t *audio_out) { + + dts_decoder_t *this = (dts_decoder_t *) this_gen; + + this->audio_out = audio_out; + this->output_open = 0; + this->pts = 0; + this->rate = 48000; + this->bits_per_sample=16; + this->number_of_channels=2; + this->audio_caps = audio_out->get_capabilities(audio_out); +} + + +void dts_decode_data (audio_decoder_t *this_gen, buf_element_t *buf) { + + dts_decoder_t *this = (dts_decoder_t *) this_gen; + int16_t *sample_buffer=(int16_t *)buf->content; + + if ((this->audio_caps & AO_CAP_MODE_AC5) == 0) { + return; + } + + this->pts = buf->PTS; + + + if (!this->output_open) { + this->output_open = (this->audio_out->open (this->audio_out, this->bits_per_sample, + this->rate, + AO_CAP_MODE_AC5)); + } + if (!this->output_open) { + return; + } + + this->audio_out->write (this->audio_out, + sample_buffer, + 1536, + this->pts); + + +} + +void dts_close (audio_decoder_t *this_gen) { + + dts_decoder_t *this = (dts_decoder_t *) this_gen; +printf("libdts: close \n"); + if (this->output_open) + this->audio_out->close (this->audio_out); + this->output_open = 0; +} + +static char *dts_get_id(void) { + return "dts"; +} + +audio_decoder_t *init_audio_decoder_plugin (int iface_version, config_values_t *cfg) { + + dts_decoder_t *this ; + + if (iface_version != 2) { + printf( "libdts: plugin doesn't support plugin API version %d.\n" + "libdts: this means there's a version mismatch between xine and this " + "libdts: decoder plugin.\nInstalling current plugins should help.\n", + iface_version); + return NULL; + } + + this = (dts_decoder_t *) malloc (sizeof (dts_decoder_t)); + + this->audio_decoder.interface_version = 2; + this->audio_decoder.can_handle = dts_can_handle; + this->audio_decoder.init = dts_init; + this->audio_decoder.decode_data = dts_decode_data; + this->audio_decoder.close = dts_close; + this->audio_decoder.get_identifier = dts_get_id; + this->audio_decoder.priority = 1; + + return (audio_decoder_t *) this; +} + |