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Diffstat (limited to 'src/libxineadec/xine_speex_decoder.c')
-rw-r--r--src/libxineadec/xine_speex_decoder.c422
1 files changed, 0 insertions, 422 deletions
diff --git a/src/libxineadec/xine_speex_decoder.c b/src/libxineadec/xine_speex_decoder.c
deleted file mode 100644
index 9ae2e9718..000000000
--- a/src/libxineadec/xine_speex_decoder.c
+++ /dev/null
@@ -1,422 +0,0 @@
-/*
- * Copyright (C) 2000-2003 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * (ogg/)speex audio decoder plugin (libspeex wrapper) for xine
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-
-#define LOG_MODULE "speex_decoder"
-#define LOG_VERBOSE
-/*
-#define LOG
-*/
-#define LOG_BUFFERS 0
-
-#include "xine_internal.h"
-#include "audio_out.h"
-#include "buffer.h"
-
-#include <ogg/ogg.h>
-
-#include <speex/speex.h>
-#include <speex/speex_header.h>
-#include <speex/speex_callbacks.h>
-#include <speex/speex_stereo.h>
-
-#define MAX_FRAME_SIZE 2000
-
-typedef struct {
- audio_decoder_class_t decoder_class;
-} speex_class_t;
-
-typedef struct speex_decoder_s {
- audio_decoder_t audio_decoder;
-
- int64_t pts;
-
- int output_sampling_rate;
- int output_open;
- int output_mode;
-
- /* speex stuff */
- void *st;
- int frame_size;
- int rate;
- int nframes;
- int channels;
- SpeexBits bits;
- SpeexStereoState stereo;
- int expect_metadata;
-
- int header_count;
-
- xine_stream_t *stream;
-
-} speex_decoder_t;
-
-
-static void speex_reset (audio_decoder_t *this_gen) {
-
- speex_decoder_t *this = (speex_decoder_t *) this_gen;
-
- speex_bits_init (&this->bits);
-}
-
-static void speex_discontinuity (audio_decoder_t *this_gen) {
-
- speex_decoder_t *this = (speex_decoder_t *) this_gen;
-
- this->pts=0;
-}
-
-/* Known speex comment keys from ogg123 sources*/
-static struct {
- char *key; /* includes the '=' for programming convenience */
- int xine_metainfo_index;
-} speex_comment_keys[] = {
- {"ARTIST=", XINE_META_INFO_ARTIST},
- {"ALBUM=", XINE_META_INFO_ALBUM},
- {"TITLE=", XINE_META_INFO_TITLE},
- {"GENRE=", XINE_META_INFO_GENRE},
- {"DESCRIPTION=", XINE_META_INFO_COMMENT},
- {"DATE=", XINE_META_INFO_YEAR},
- {NULL, 0}
-};
-
-#define readint(buf, base) (((buf[base+3]<<24)&0xff000000)| \
- ((buf[base+2]<<16)&0xff0000)| \
- ((buf[base+1]<<8)&0xff00)| \
- (buf[base]&0xff))
-
-static
-void read_metadata (speex_decoder_t *this, char * comments, int length)
-{
- char * c = comments;
- int len, i, nb_fields;
- char * end;
-
- _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "speex");
-
- if (length < 8) {
- xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "libspeex: invalid/corrupted comments\n");
- return;
- }
-
- end = c+length;
- len = readint (c, 0);
- c += 4;
-
- if (c+len > end) {
- xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "libspeex: invalid/corrupted comments\n");
- return;
- }
-
-#ifdef LOG
- /* Encoder */
- printf ("libspeex: ");
- fwrite (c, 1, len, stdout);
- printf ("\n");
-#endif
-
- c += len;
-
- if (c+4 > end) {
- xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "libspeex: invalid/corrupted comments\n");
- return;
- }
-
- nb_fields = readint (c, 0);
- c += 4;
-
- for (i = 0; i < nb_fields; i++) {
- if (c+4 > end) {
- xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "libspeex: invalid/corrupted comments\n");
- return;
- }
-
- len = readint (c, 0);
- c += 4;
- if (c+len > end) {
- xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "libspeex: invalid/corrupted comments\n");
- return;
- }
-
-#ifdef LOG
- printf ("libspeex: ");
- fwrite (c, 1, len, stdout);
- printf ("\n");
-#endif
-
- for (i = 0; speex_comment_keys[i].key != NULL; i++) {
- size_t keylen = strlen(speex_comment_keys[i].key);
-
- if ( !strncasecmp (speex_comment_keys[i].key, c,
- keylen) ) {
- char meta_info[(len - keylen) + 1];
-
- lprintf ("known metadata %d %d\n",
- i, speex_comment_keys[i].xine_metainfo_index);
-
- strncpy(meta_info, &c[keylen], len-keylen);
- _x_meta_info_set_utf8(this->stream, speex_comment_keys[i].xine_metainfo_index, meta_info);
- }
- }
-
- c += len;
- }
-}
-
-static void speex_decode_data (audio_decoder_t *this_gen, buf_element_t *buf) {
-
- speex_decoder_t *this = (speex_decoder_t *) this_gen;
-
- llprintf (LOG_BUFFERS, "decode buf=%8p content=%8p flags=%08x\n",
- buf, buf->content, buf->decoder_flags);
-
- if ( (buf->decoder_flags & BUF_FLAG_HEADER) &&
- !(buf->decoder_flags & BUF_FLAG_STDHEADER) ) {
- lprintf ("preview buffer, %d headers to go\n", this->header_count);
-
- if (this->header_count) {
-
- if (!this->st) {
- SpeexMode * spx_mode;
- SpeexHeader * spx_header;
- unsigned int modeID;
- int bitrate;
-
- speex_bits_init (&this->bits);
-
- spx_header = speex_packet_to_header (buf->content, buf->size);
-
- if (!spx_header) {
- xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "libspeex: could not read Speex header\n");
- return;
- }
-
- modeID = (unsigned int)spx_header->mode;
- if (modeID >= SPEEX_NB_MODES) {
- xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG, LOG_MODULE ": invalid mode ID %u\n", modeID);
- return;
- }
-
- spx_mode = (SpeexMode *) speex_mode_list[modeID];
-
- if (spx_mode->bitstream_version != spx_header->mode_bitstream_version) {
- xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "libspeex: incompatible Speex mode bitstream version\n");
- return;
- }
-
- this->st = speex_decoder_init (spx_mode);
- if (!this->st) {
- xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "libspeex: decoder initialization failed\n");
- return;
- }
-
- this->rate = spx_header->rate;
- speex_decoder_ctl (this->st, SPEEX_SET_SAMPLING_RATE, &this->rate);
- _x_stream_info_set(this->stream, XINE_STREAM_INFO_AUDIO_SAMPLERATE,
- this->rate);
-
- this->channels = spx_header->nb_channels;
- if (this->channels == 2) {
- SpeexCallback callback;
-
- callback.callback_id = SPEEX_INBAND_STEREO;
- callback.func = speex_std_stereo_request_handler;
- callback.data = &this->stereo;
- speex_decoder_ctl (this->st, SPEEX_SET_HANDLER, &callback);
- }
-
- this->nframes = spx_header->frames_per_packet;
- if (!this->nframes) this->nframes = 1;
-
- speex_decoder_ctl (this->st, SPEEX_GET_FRAME_SIZE, &this->frame_size);
-
- speex_decoder_ctl (this->st, SPEEX_GET_BITRATE, &bitrate);
- if (bitrate <= 1) bitrate = 16000; /* assume 16 kbit */
- _x_stream_info_set(this->stream, XINE_STREAM_INFO_AUDIO_BITRATE, bitrate);
-
- this->header_count += spx_header->extra_headers;
- this->expect_metadata = 1;
-
- free (spx_header);
- } else if (this->expect_metadata) {
- read_metadata (this, buf->content, buf->size);
- }
-
- this->header_count--;
-
- if (!this->header_count) {
- int mode = _x_ao_channels2mode(this->channels);
-
- if (!this->output_open) {
- this->output_open =
- (this->stream->audio_out->open) (this->stream->audio_out,
- this->stream,
- 16,
- this->rate,
- mode);
- lprintf ("this->output_open after attempt is %d\n", this->output_open);
- }
- }
- }
-
- } else if (this->output_open) {
- int j;
-
- audio_buffer_t *audio_buffer;
-
- audio_buffer =
- this->stream->audio_out->get_buffer (this->stream->audio_out);
-
- speex_bits_read_from (&this->bits, buf->content, buf->size);
-
- for (j = 0; j < this->nframes; j++) {
- int ret;
- int bitrate;
-
- ret = speex_decode_int (this->st, &this->bits, audio_buffer->mem);
-
- if (ret==-1)
- break;
- if (ret==-2) {
- xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "libspeex: Decoding error, corrupted stream?\n");
- break;
- }
- if (speex_bits_remaining(&this->bits)<0) {
- xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "libspeex: Decoding overflow, corrupted stream?\n");
- break;
- }
-
- if (this->channels == 2) {
- speex_decode_stereo_int (audio_buffer->mem, this->frame_size, &this->stereo);
- }
-
- speex_decoder_ctl (this->st, SPEEX_GET_BITRATE, &bitrate);
- if (bitrate <= 1) bitrate = 16000; /* assume 16 kbit */
- _x_stream_info_set(this->stream, XINE_STREAM_INFO_AUDIO_BITRATE, bitrate);
-
- audio_buffer->vpts = this->pts;
- this->pts=0;
- audio_buffer->num_frames = this->frame_size;
-
- this->stream->audio_out->put_buffer (this->stream->audio_out, audio_buffer, this->stream);
-
- buf->pts=0;
-
- }
- }
- else {
- llprintf (LOG_BUFFERS, "output not open\n");
- }
-}
-
-static void speex_dispose (audio_decoder_t *this_gen) {
-
- speex_decoder_t *this = (speex_decoder_t *) this_gen;
-
- if (this->st) {
- speex_decoder_destroy (this->st);
- }
- speex_bits_destroy (&this->bits);
-
- if (this->output_open)
- this->stream->audio_out->close (this->stream->audio_out, this->stream);
-
- free (this_gen);
-}
-
-static audio_decoder_t *open_plugin (audio_decoder_class_t *class_gen,
- xine_stream_t *stream) {
-
- speex_decoder_t *this ;
- static SpeexStereoState init_stereo = SPEEX_STEREO_STATE_INIT;
-
- this = (speex_decoder_t *) calloc(1, sizeof(speex_decoder_t));
-
- this->audio_decoder.decode_data = speex_decode_data;
- this->audio_decoder.reset = speex_reset;
- this->audio_decoder.discontinuity = speex_discontinuity;
- this->audio_decoder.dispose = speex_dispose;
- this->stream = stream;
-
- this->output_open = 0;
- this->header_count = 1;
- this->expect_metadata = 0;
-
- this->st = NULL;
-
- this->channels = 1;
-
- memcpy (&this->stereo, &init_stereo, sizeof (SpeexStereoState));
-
- return (audio_decoder_t *) this;
-}
-
-/*
- * speex plugin class
- */
-
-static char *get_identifier (audio_decoder_class_t *this) {
- return "speex";
-}
-
-static char *get_description (audio_decoder_class_t *this) {
- return "Speex audio decoder plugin";
-}
-
-static void dispose_class (audio_decoder_class_t *this) {
- free (this);
-}
-
-static void *init_plugin (xine_t *xine, void *data) {
-
- speex_class_t *this;
-
- this = (speex_class_t *) calloc(1, sizeof(speex_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_SPEEX, 0
- };
-
-static const decoder_info_t dec_info_audio = {
- audio_types, /* supported types */
- 5 /* priority */
-};
-
-const plugin_info_t xine_plugin_info[] EXPORTED = {
- /* type, API, "name", version, special_info, init_function */
- { PLUGIN_AUDIO_DECODER, 15, "speex", 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 14:10:50 +0000