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Diffstat (limited to 'src/libdts/xine_dts_decoder.c')
-rw-r--r--src/libdts/xine_dts_decoder.c614
1 files changed, 614 insertions, 0 deletions
diff --git a/src/libdts/xine_dts_decoder.c b/src/libdts/xine_dts_decoder.c
new file mode 100644
index 000000000..902d8c5b6
--- /dev/null
+++ b/src/libdts/xine_dts_decoder.c
@@ -0,0 +1,614 @@
+/*
+ * Copyright (C) 2000-2005 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 1.67 2007/02/20 00:34:57 dgp85 Exp $
+ *
+ * 04-09-2001 DTS passtrough (C) Joachim Koenig
+ * 09-12-2001 DTS passthrough inprovements (C) James Courtier-Dutton
+ *
+ */
+
+#ifndef __sun
+/* required for swab() */
+#define _XOPEN_SOURCE 500
+#endif
+/* avoid compiler warnings */
+#define _BSD_SOURCE 1
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <assert.h>
+
+#define LOG_MODULE "libdts"
+#define LOG_VERBOSE
+/*
+#define LOG
+*/
+
+#include "xine_internal.h"
+#include "xineutils.h"
+#include "audio_out.h"
+#include "buffer.h"
+#include "dts.h"
+
+#define MAX_AC5_FRAME 4096
+
+typedef struct {
+ audio_decoder_class_t decoder_class;
+} dts_class_t;
+
+typedef struct {
+ audio_decoder_t audio_decoder;
+
+ xine_stream_t *stream;
+ audio_decoder_class_t *class;
+
+ dts_state_t *dts_state;
+ int64_t pts;
+
+ int audio_caps;
+ int sync_state;
+ int ac5_length, ac5_pcm_length, frame_todo;
+ uint32_t syncdword;
+ uint8_t frame_buffer[MAX_AC5_FRAME];
+ uint8_t *frame_ptr;
+
+ int output_open;
+
+ int bypass_mode;
+ int dts_flags;
+ int dts_sample_rate;
+ int dts_bit_rate;
+ int dts_flags_map[11]; /* Convert from stream dts_flags to the dts_flags we want from the dts downmixer */
+ int ao_flags_map[11]; /* Convert from the xine AO_CAP's to dts_flags. */
+ int have_lfe;
+
+
+} dts_decoder_t;
+
+static void dts_reset (audio_decoder_t *this_gen);
+static void dts_discontinuity (audio_decoder_t *this_gen);
+
+static void dts_reset (audio_decoder_t *this_gen) {
+
+ /* dts_decoder_t *this = (dts_decoder_t *) this_gen; */
+
+}
+
+static void dts_discontinuity (audio_decoder_t *this_gen) {
+}
+
+#if 0
+static inline int16_t blah (int32_t i) {
+
+ if (i > 0x43c07fff)
+ return 32767;
+ else if (i < 0x43bf8000)
+ return -32768;
+ else
+ return i - 0x43c00000;
+}
+static inline void float_to_int (float * _f, int16_t * s16, int num_channels) {
+ int i;
+ int32_t * f = (int32_t *) _f; /* XXX assumes IEEE float format */
+
+ for (i = 0; i < 256; i++) {
+ s16[num_channels*i] = blah (f[i]);
+ }
+}
+#endif
+
+static inline void float_to_int (float * _f, int16_t * s16, int num_channels) {
+ int i;
+ float f;
+ for (i = 0; i < 256; i++) {
+ f = _f[i] * 32767;
+ if (f > INT16_MAX) f = INT16_MAX;
+ if (f < INT16_MIN) f = INT16_MIN;
+ s16[num_channels*i] = f;
+ /* printf("samples[%d] = %f, %d\n", i, _f[i], s16[num_channels*i]); */
+ }
+}
+
+static inline void mute_channel (int16_t * s16, int num_channels) {
+ int i;
+
+ for (i = 0; i < 256; i++) {
+ s16[num_channels*i] = 0;
+ }
+}
+
+static void dts_decode_frame (dts_decoder_t *this, int64_t pts, int preview_mode) {
+
+ audio_buffer_t *audio_buffer;
+ uint32_t ac5_spdif_type=0;
+ int output_mode = AO_CAP_MODE_STEREO;
+ uint8_t *data_out;
+ uint8_t *data_in = this->frame_buffer;
+
+ lprintf("decode_frame\n");
+ audio_buffer = this->stream->audio_out->get_buffer (this->stream->audio_out);
+ audio_buffer->vpts = pts;
+
+ if(this->bypass_mode) {
+ /* SPDIF digital output */
+ if (!this->output_open) {
+ this->output_open = (this->stream->audio_out->open (this->stream->audio_out, this->stream,
+ 16, this->dts_sample_rate,
+ AO_CAP_MODE_AC5));
+ }
+
+ if (!this->output_open)
+ return;
+
+ data_out=(uint8_t *) audio_buffer->mem;
+ if (this->ac5_length > 8191) {
+ xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG, "libdts: ac5_length too long\n");
+ this->ac5_pcm_length = 0;
+ }
+
+ switch (this->ac5_pcm_length) {
+ case 512:
+ ac5_spdif_type = 0x0b; /* DTS-1 (512-sample bursts) */
+ break;
+ case 1024:
+ ac5_spdif_type = 0x0c; /* DTS-1 (1024-sample bursts) */
+ break;
+ case 2048:
+ ac5_spdif_type = 0x0d; /* DTS-1 (2048-sample bursts) */
+ break;
+ default:
+ xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG,
+ "libdts: DTS %i-sample bursts not supported\n", this->ac5_pcm_length);
+ return;
+ }
+
+#ifdef LOG_DEBUG
+ {
+ int i;
+ printf("libdts: DTS frame type=%d\n",data_in[4] >> 7);
+ printf("libdts: DTS deficit frame count=%d\n",(data_in[4] & 0x7f) >> 2);
+ printf("libdts: DTS AC5 PCM samples=%d\n",ac5_pcm_samples);
+ printf("libdts: DTS AC5 length=%d\n",this->ac5_length);
+ printf("libdts: DTS AC5 bitrate=%d\n",((data_in[8] & 0x03) << 4) | (data_in[8] >> 4));
+ printf("libdts: DTS AC5 spdif type=%d\n", ac5_spdif_type);
+
+ printf("libdts: ");
+ for(i=2000;i<2048;i++) {
+ printf("%02x ",data_in[i]);
+ }
+ printf("\n");
+ }
+#endif
+
+ lprintf("length=%d pts=%"PRId64"\n",this->ac5_pcm_length,audio_buffer->vpts);
+
+ audio_buffer->num_frames = this->ac5_pcm_length;
+
+ data_out[0] = 0x72; data_out[1] = 0xf8; /* spdif syncword */
+ data_out[2] = 0x1f; data_out[3] = 0x4e; /* .............. */
+ data_out[4] = ac5_spdif_type; /* DTS data */
+ data_out[5] = 0; /* Unknown */
+ data_out[6] = (this->ac5_length << 3) & 0xff; /* ac5_length * 8 */
+ data_out[7] = ((this->ac5_length ) >> 5) & 0xff;
+
+ if( this->ac5_pcm_length ) {
+ if( this->ac5_pcm_length % 2) {
+ swab(data_in, &data_out[8], this->ac5_length );
+ } else {
+ swab(data_in, &data_out[8], this->ac5_length + 1);
+ }
+ }
+ } else {
+ /* Software decode */
+ int i, dts_output_flags;
+ int16_t *int_samples = audio_buffer->mem;
+ int number_of_dts_blocks;
+
+ level_t level = 1.0;
+ sample_t *samples;
+
+ dts_output_flags = this->dts_flags_map[this->dts_flags & DTS_CHANNEL_MASK];
+
+ if(dts_frame(this->dts_state, data_in, &dts_output_flags, &level, 0)) {
+ xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "libdts: dts_frame error\n");
+ return;
+ }
+
+ this->have_lfe = dts_output_flags & DTS_LFE;
+ if (this->have_lfe)
+ if (this->audio_caps & AO_CAP_MODE_5_1CHANNEL) {
+ output_mode = AO_CAP_MODE_5_1CHANNEL;
+ } else if (this->audio_caps & AO_CAP_MODE_4_1CHANNEL) {
+ output_mode = AO_CAP_MODE_4_1CHANNEL;
+ } else {
+ xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG, "libdts: WHAT DO I DO!!!\n");
+ output_mode = this->ao_flags_map[dts_output_flags & DTS_CHANNEL_MASK];
+ }
+ else
+ output_mode = this->ao_flags_map[dts_output_flags & DTS_CHANNEL_MASK];
+
+ if (!this->output_open) {
+ this->output_open = this->stream->audio_out->open (this->stream->audio_out, this->stream,
+ 16, this->dts_sample_rate,
+ output_mode);
+ }
+
+ if (!this->output_open)
+ return;
+ number_of_dts_blocks = dts_blocks_num (this->dts_state);
+ audio_buffer->num_frames = 256*number_of_dts_blocks;
+ for(i = 0; i < number_of_dts_blocks; i++) {
+ if(dts_block(this->dts_state)) {
+ xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG,
+ "libdts: dts_block error on audio channel %d\n", i);
+ audio_buffer->num_frames = 0;
+ break;
+ }
+
+ samples = dts_samples(this->dts_state);
+ switch (output_mode) {
+ case AO_CAP_MODE_MONO:
+ float_to_int (&samples[0], int_samples+(i*256), 1);
+ break;
+ case AO_CAP_MODE_STEREO:
+ /* Tested, working. */
+ float_to_int (&samples[0*256], int_samples+(i*256*2), 2); /* L */
+ float_to_int (&samples[1*256], int_samples+(i*256*2)+1, 2); /* R */
+ break;
+ case AO_CAP_MODE_4CHANNEL:
+ /* Tested, working */
+ float_to_int (&samples[0*256], int_samples+(i*256*4), 4); /* L */
+ float_to_int (&samples[1*256], int_samples+(i*256*4)+1, 4); /* R */
+ float_to_int (&samples[2*256], int_samples+(i*256*4)+2, 4); /* RL */
+ float_to_int (&samples[3*256], int_samples+(i*256*4)+3, 4); /* RR */
+ break;
+ case AO_CAP_MODE_4_1CHANNEL:
+ /* Tested, working */
+ float_to_int (&samples[0*256], int_samples+(i*256*6)+0, 6); /* L */
+ float_to_int (&samples[1*256], int_samples+(i*256*6)+1, 6); /* R */
+ float_to_int (&samples[2*256], int_samples+(i*256*6)+2, 6); /* RL */
+ float_to_int (&samples[3*256], int_samples+(i*256*6)+3, 6); /* RR */
+ float_to_int (&samples[4*256], int_samples+(i*256*6)+5, 6); /* LFE */
+ mute_channel ( int_samples+(i*256*6)+4, 6); /* C */
+ break;
+ case AO_CAP_MODE_5CHANNEL:
+ /* Tested, working */
+ float_to_int (&samples[0*256], int_samples+(i*256*6)+4, 6); /* C */
+ float_to_int (&samples[1*256], int_samples+(i*256*6)+0, 6); /* L */
+ float_to_int (&samples[2*256], int_samples+(i*256*6)+1, 6); /* R */
+ float_to_int (&samples[3*256], int_samples+(i*256*6)+2, 6); /* RL */
+ float_to_int (&samples[4*256], int_samples+(i*256*6)+3, 6); /* RR */
+ mute_channel ( int_samples+(i*256*6)+5, 6); /* LFE */
+ break;
+ case AO_CAP_MODE_5_1CHANNEL:
+ float_to_int (&samples[0*256], int_samples+(i*256*6)+4, 6); /* C */
+ float_to_int (&samples[1*256], int_samples+(i*256*6)+0, 6); /* L */
+ float_to_int (&samples[2*256], int_samples+(i*256*6)+1, 6); /* R */
+ float_to_int (&samples[3*256], int_samples+(i*256*6)+2, 6); /* RL */
+ float_to_int (&samples[4*256], int_samples+(i*256*6)+3, 6); /* RR */
+ float_to_int (&samples[5*256], int_samples+(i*256*6)+5, 6); /* LFE */ /* Not working yet */
+ break;
+ default:
+ xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "libdts: help - unsupported mode %08x\n", output_mode);
+ }
+ }
+ }
+
+ this->stream->audio_out->put_buffer (this->stream->audio_out, audio_buffer, this->stream);
+
+
+}
+
+static void dts_decode_data (audio_decoder_t *this_gen, buf_element_t *buf) {
+
+ dts_decoder_t *this = (dts_decoder_t *) this_gen;
+ uint8_t *current = (uint8_t *)buf->content;
+ uint8_t *sync_start=current + 1;
+ uint8_t *end = buf->content + buf->size;
+
+ lprintf("decode_data\n");
+
+ if (buf->decoder_flags & BUF_FLAG_PREVIEW)
+ return;
+ if (buf->decoder_flags & BUF_FLAG_STDHEADER)
+ return;
+
+ lprintf ("processing...state %d\n", this->sync_state);
+
+ while (current < end) {
+ switch (this->sync_state) {
+ case 0: /* Looking for sync header */
+ this->syncdword = (this->syncdword << 8) | *current++;
+/*
+ if ((this->syncdword == 0xff1f00e8) ||
+ (this->syncdword == 0x1fffe800) ||
+ (this->syncdword == 0xfe7f0180) ||
+ (this->syncdword == 0x7ffe8001) ) {
+*/
+ if ((this->syncdword == 0x7ffe8001)) {
+
+ lprintf ("sync found: syncdword=0x%x\n", this->syncdword);
+ this->frame_buffer[0] = 0x7f;
+ this->frame_buffer[1] = 0xfe;
+ this->frame_buffer[2] = 0x80;
+ this->frame_buffer[3] = 0x01;
+
+ this->sync_state = 1;
+ this->frame_ptr = this->frame_buffer+4;
+ this->pts = buf->pts;
+ break;
+ }
+ if ((this->syncdword == 0xff1f00e8)) {
+
+ lprintf ("sync found: syncdword=0x%x\n", this->syncdword);
+ this->frame_buffer[0] = 0xff;
+ this->frame_buffer[1] = 0x1f;
+ this->frame_buffer[2] = 0x00;
+ this->frame_buffer[3] = 0xe8;
+
+ this->sync_state = 1;
+ this->frame_ptr = this->frame_buffer+4;
+ this->pts = buf->pts;
+ break;
+ }
+ break;
+
+ case 1: /* Looking for enough bytes for sync_info. */
+ sync_start = current - 1;
+ *this->frame_ptr++ = *current++;
+ if ((this->frame_ptr - this->frame_buffer) > 19) {
+ int old_dts_flags = this->dts_flags;
+ int old_dts_sample_rate = this->dts_sample_rate;
+ int old_dts_bit_rate = this->dts_bit_rate;
+
+ this->ac5_length = dts_syncinfo (this->dts_state, this->frame_buffer,
+ &this->dts_flags,
+ &this->dts_sample_rate,
+ &this->dts_bit_rate, &(this->ac5_pcm_length));
+ lprintf("ac5_length=%d\n",this->ac5_length);
+ lprintf("dts_sample_rate=%d\n",this->dts_sample_rate);
+
+ if ( (this->ac5_length < 80) || (this->ac5_length > MAX_AC5_FRAME) ) { /* Invalid dts ac5_pcm_length */
+ this->syncdword = 0;
+ current = sync_start;
+ this->sync_state = 0;
+ break;
+ }
+
+ lprintf("Frame length = %d\n",this->ac5_pcm_length);
+
+ this->frame_todo = this->ac5_length - 20;
+ this->sync_state = 2;
+ if (!_x_meta_info_get(this->stream, XINE_META_INFO_AUDIOCODEC) ||
+ old_dts_flags != this->dts_flags ||
+ old_dts_sample_rate != this->dts_sample_rate ||
+ old_dts_bit_rate != this->dts_bit_rate) {
+
+ switch (this->dts_flags & DTS_CHANNEL_MASK) {
+ case DTS_3F2R:
+ if (this->dts_flags & DTS_LFE)
+ _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "DTS 5.1");
+ else
+ _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "DTS 5.0");
+ break;
+ case DTS_3F1R:
+ case DTS_2F2R:
+ if (this->dts_flags & DTS_LFE)
+ _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "DTS 4.1");
+ else
+ _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "DTS 4.0");
+ break;
+ case DTS_2F1R:
+ case DTS_3F:
+ _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "DTS 3.0");
+ break;
+ case DTS_STEREO:
+ _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "DTS 2.0 (stereo)");
+ break;
+ case DTS_MONO:
+ _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "DTS 1.0");
+ break;
+ default:
+ _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "DTS");
+ break;
+ }
+
+ _x_stream_info_set(this->stream, XINE_STREAM_INFO_AUDIO_BITRATE, this->dts_bit_rate);
+ _x_stream_info_set(this->stream, XINE_STREAM_INFO_AUDIO_SAMPLERATE, this->dts_sample_rate);
+ }
+ }
+ break;
+
+ case 2: /* Filling frame_buffer with sync_info bytes */
+ *this->frame_ptr++ = *current++;
+ this->frame_todo--;
+ if (this->frame_todo < 1) {
+ this->sync_state = 3;
+ } else break;
+
+ case 3: /* Ready for decode */
+#if 0
+ dtsdec_decode_frame (this, this->pts_list[0], buf->decoder_flags & BUF_FLAG_PREVIEW);
+#else
+ dts_decode_frame (this, this->pts, buf->decoder_flags & BUF_FLAG_PREVIEW);
+#endif
+ case 4: /* Clear up ready for next frame */
+ this->pts = 0;
+ this->syncdword = 0;
+ this->sync_state = 0;
+ break;
+ default: /* No come here */
+ break;
+ }
+ }
+}
+
+static void dts_dispose (audio_decoder_t *this_gen) {
+ dts_decoder_t *this = (dts_decoder_t *) this_gen;
+
+ if (this->output_open)
+ this->stream->audio_out->close (this->stream->audio_out, this->stream);
+ this->output_open = 0;
+
+ free (this);
+}
+
+static audio_decoder_t *open_plugin (audio_decoder_class_t *class_gen, xine_stream_t *stream) {
+ dts_decoder_t *this ;
+
+ lprintf("open_plugin\n");
+
+ this = (dts_decoder_t *) xine_xmalloc (sizeof (dts_decoder_t));
+
+ this->audio_decoder.decode_data = dts_decode_data;
+ this->audio_decoder.reset = dts_reset;
+ this->audio_decoder.discontinuity = dts_discontinuity;
+ this->audio_decoder.dispose = dts_dispose;
+
+ this->dts_state = dts_init(0);
+ this->audio_caps = stream->audio_out->get_capabilities(stream->audio_out);
+ if(this->audio_caps & AO_CAP_MODE_AC5)
+ this->bypass_mode = 1;
+ else {
+ this->bypass_mode = 0;
+ /* FIXME: Leave "DOLBY pro logic" downmix out for now. */
+
+ this->dts_flags_map[DTS_MONO] = DTS_MONO;
+ this->dts_flags_map[DTS_STEREO] = DTS_STEREO;
+ this->dts_flags_map[DTS_3F] = DTS_STEREO;
+ this->dts_flags_map[DTS_2F1R] = DTS_STEREO;
+ this->dts_flags_map[DTS_3F1R] = DTS_STEREO;
+ this->dts_flags_map[DTS_2F2R] = DTS_STEREO;
+ this->dts_flags_map[DTS_3F2R] = DTS_STEREO;
+
+ this->ao_flags_map[DTS_MONO] = AO_CAP_MODE_MONO;
+ this->ao_flags_map[DTS_STEREO] = AO_CAP_MODE_STEREO;
+ this->ao_flags_map[DTS_3F] = AO_CAP_MODE_STEREO;
+ this->ao_flags_map[DTS_2F1R] = AO_CAP_MODE_STEREO;
+ this->ao_flags_map[DTS_3F1R] = AO_CAP_MODE_STEREO;
+ this->ao_flags_map[DTS_2F2R] = AO_CAP_MODE_STEREO;
+ this->ao_flags_map[DTS_3F2R] = AO_CAP_MODE_STEREO;
+
+ /* find best mode */
+ if (this->audio_caps & AO_CAP_MODE_5_1CHANNEL) {
+
+ this->dts_flags_map[DTS_2F2R] = DTS_2F2R;
+ this->dts_flags_map[DTS_3F2R] = DTS_3F2R | DTS_LFE;
+ this->ao_flags_map[DTS_2F2R] = AO_CAP_MODE_4CHANNEL;
+ this->ao_flags_map[DTS_3F2R] = AO_CAP_MODE_5CHANNEL;
+
+ } else if (this->audio_caps & AO_CAP_MODE_5CHANNEL) {
+
+ this->dts_flags_map[DTS_2F2R] = DTS_2F2R;
+ this->dts_flags_map[DTS_3F2R] = DTS_3F2R;
+ this->ao_flags_map[DTS_2F2R] = AO_CAP_MODE_4CHANNEL;
+ this->ao_flags_map[DTS_3F2R] = AO_CAP_MODE_5CHANNEL;
+
+ } else if (this->audio_caps & AO_CAP_MODE_4_1CHANNEL) {
+
+ this->dts_flags_map[DTS_2F2R] = DTS_2F2R;
+ this->dts_flags_map[DTS_3F2R] = DTS_2F2R | DTS_LFE;
+ this->ao_flags_map[DTS_2F2R] = AO_CAP_MODE_4CHANNEL;
+ this->ao_flags_map[DTS_3F2R] = AO_CAP_MODE_4CHANNEL;
+
+ } else if (this->audio_caps & AO_CAP_MODE_4CHANNEL) {
+
+ this->dts_flags_map[DTS_2F2R] = DTS_2F2R;
+ this->dts_flags_map[DTS_3F2R] = DTS_2F2R;
+
+ this->ao_flags_map[DTS_2F2R] = AO_CAP_MODE_4CHANNEL;
+ this->ao_flags_map[DTS_3F2R] = AO_CAP_MODE_4CHANNEL;
+
+ /* else if (this->audio_caps & AO_CAP_MODE_STEREO)
+ defaults are ok */
+ } else if (!(this->audio_caps & AO_CAP_MODE_STEREO)) {
+ xprintf (this->stream->xine, XINE_VERBOSITY_LOG, _("HELP! a mono-only audio driver?!\n"));
+
+ this->dts_flags_map[DTS_MONO] = DTS_MONO;
+ this->dts_flags_map[DTS_STEREO] = DTS_MONO;
+ this->dts_flags_map[DTS_3F] = DTS_MONO;
+ this->dts_flags_map[DTS_2F1R] = DTS_MONO;
+ this->dts_flags_map[DTS_3F1R] = DTS_MONO;
+ this->dts_flags_map[DTS_2F2R] = DTS_MONO;
+ this->dts_flags_map[DTS_3F2R] = DTS_MONO;
+
+ this->ao_flags_map[DTS_MONO] = AO_CAP_MODE_MONO;
+ this->ao_flags_map[DTS_STEREO] = AO_CAP_MODE_MONO;
+ this->ao_flags_map[DTS_3F] = AO_CAP_MODE_MONO;
+ this->ao_flags_map[DTS_2F1R] = AO_CAP_MODE_MONO;
+ this->ao_flags_map[DTS_3F1R] = AO_CAP_MODE_MONO;
+ this->ao_flags_map[DTS_2F2R] = AO_CAP_MODE_MONO;
+ this->ao_flags_map[DTS_3F2R] = AO_CAP_MODE_MONO;
+ }
+ }
+ this->stream = stream;
+ this->class = class_gen;
+ this->output_open = 0;
+
+ return &this->audio_decoder;
+}
+
+static char *get_identifier (audio_decoder_class_t *this) {
+ return "DTS";
+}
+
+static char *get_description (audio_decoder_class_t *this) {
+ return "DTS passthru audio format decoder plugin";
+}
+
+static void dispose_class (audio_decoder_class_t *this) {
+ lprintf("dispose_class\n");
+
+ free (this);
+}
+
+static void *init_plugin (xine_t *xine, void *data) {
+ dts_class_t *this ;
+
+ lprintf("init_plugin\n");
+
+ this = (dts_class_t *) xine_xmalloc (sizeof (dts_class_t));
+
+ this->decoder_class.open_plugin = open_plugin;
+ this->decoder_class.get_identifier = get_identifier;
+ this->decoder_class.get_description = get_description;
+ this->decoder_class.dispose = dispose_class;
+
+ return this;
+}
+
+static uint32_t audio_types[] = {
+ BUF_AUDIO_DTS, 0
+ };
+
+static const decoder_info_t dec_info_audio = {
+ audio_types, /* supported types */
+ 1 /* priority */
+};
+
+const plugin_info_t xine_plugin_info[] EXPORTED = {
+ /* type, API, "name", version, special_info, init_function */
+ { PLUGIN_AUDIO_DECODER, 15, "dts", XINE_VERSION_CODE, &dec_info_audio, init_plugin },
+ { PLUGIN_NONE, 0, "", 0, NULL, NULL }
+};
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-25 10:54:21 +0000