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-rw-r--r--src/libxineadec/gsm610.c293
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diff --git a/src/libxineadec/gsm610.c b/src/libxineadec/gsm610.c
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--- a/src/libxineadec/gsm610.c
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@@ -1,293 +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
- *
- * GSM 6.10 Audio Decoder
- * This decoder is based on the GSM 6.10 codec library found at:
- * http://kbs.cs.tu-berlin.de/~jutta/toast.html
- * Additionally, here is an article regarding the software that appeared
- * in Dr. Dobbs Journal:
- * http://www.ddj.com/documents/s=1012/ddj9412b/9412b.htm
- *
- * This is the notice that comes with the software:
- * --------------------------------------------------------------------
- * Copyright 1992, 1993, 1994 by Jutta Degener and Carsten Bormann,
- * Technische Universitaet Berlin
- *
- * Any use of this software is permitted provided that this notice is not
- * removed and that neither the authors nor the Technische Universitaet Berlin
- * are deemed to have made any representations as to the suitability of this
- * software for any purpose nor are held responsible for any defects of
- * this software. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
- *
- * As a matter of courtesy, the authors request to be informed about uses
- * this software has found, about bugs in this software, and about any
- * improvements that may be of general interest.
- *
- * Berlin, 28.11.1994
- * Jutta Degener
- * Carsten Bormann
- * --------------------------------------------------------------------
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "xine_internal.h"
-#include "audio_out.h"
-#include "buffer.h"
-#include "xineutils.h"
-#include "bswap.h"
-
-#include "gsm610/private.h"
-#include "gsm610/gsm.h"
-
-#define AUDIOBUFSIZE 128*1024
-
-#define GSM610_SAMPLE_SIZE 16
-#define GSM610_BLOCK_SIZE 160
-
-typedef struct {
- audio_decoder_class_t decoder_class;
-} gsm610_class_t;
-
-typedef struct gsm610_decoder_s {
- audio_decoder_t audio_decoder;
-
- xine_stream_t *stream;
-
- unsigned int buf_type;
- int output_open;
- int sample_rate;
-
- unsigned char *buf;
- int bufsize;
- int size;
-
- unsigned short decode_buffer[GSM610_BLOCK_SIZE];
- gsm gsm_state;
-
-} gsm610_decoder_t;
-
-/**************************************************************************
- * xine audio plugin functions
- *************************************************************************/
-
-static void gsm610_decode_data (audio_decoder_t *this_gen, buf_element_t *buf) {
-
- gsm610_decoder_t *this = (gsm610_decoder_t *) this_gen;
- audio_buffer_t *audio_buffer;
- int in_ptr;
-
- if (buf->decoder_flags & BUF_FLAG_STDHEADER) {
- this->sample_rate = buf->decoder_info[1];
-
- this->buf = calloc(1, AUDIOBUFSIZE);
- this->bufsize = AUDIOBUFSIZE;
- this->size = 0;
-
- /* stream/meta info */
- _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "GSM 6.10");
-
- return;
- }
-
- if (!this->output_open) {
-
- this->gsm_state = gsm_create();
- this->buf_type = buf->type;
-
- this->output_open = (this->stream->audio_out->open) (this->stream->audio_out,
- this->stream, GSM610_SAMPLE_SIZE, this->sample_rate, AO_CAP_MODE_MONO);
- }
-
- /* if the audio still isn't open, bail */
- if (!this->output_open)
- return;
-
- if( this->size + buf->size > this->bufsize ) {
- this->bufsize = this->size + 2 * buf->size;
- xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG,
- "gsm610: increasing source buffer to %d to avoid overflow.\n", this->bufsize);
- this->buf = realloc( this->buf, this->bufsize );
- }
-
- xine_fast_memcpy (&this->buf[this->size], buf->content, buf->size);
- this->size += buf->size;
-
- if (buf->decoder_flags & BUF_FLAG_FRAME_END) { /* time to decode a frame */
-
- /* handle the Microsoft variant of GSM data */
- if (this->buf_type == BUF_AUDIO_MSGSM) {
-
- this->gsm_state->wav_fmt = 1;
-
- /* the data should line up on a 65-byte boundary */
- if ((buf->size % 65) != 0) {
- xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG,
- "gsm610: received MS GSM block that does not line up\n");
- this->size = 0;
- return;
- }
-
- in_ptr = 0;
- while (this->size) {
- gsm_decode(this->gsm_state, &this->buf[in_ptr], this->decode_buffer);
- if ((in_ptr % 65) == 0) {
- in_ptr += 33;
- this->size -= 33;
- } else {
- in_ptr += 32;
- this->size -= 32;
- }
-
- /* dispatch the decoded audio; assume that the audio buffer will
- * always contain at least 160 samples */
- audio_buffer = this->stream->audio_out->get_buffer (this->stream->audio_out);
-
- xine_fast_memcpy(audio_buffer->mem, this->decode_buffer,
- GSM610_BLOCK_SIZE * 2);
- audio_buffer->num_frames = GSM610_BLOCK_SIZE;
-
- audio_buffer->vpts = buf->pts;
- buf->pts = 0; /* only first buffer gets the real pts */
- this->stream->audio_out->put_buffer (this->stream->audio_out, audio_buffer, this->stream);
- }
- } else {
-
- /* handle the other variant, which consists of 33-byte blocks */
- this->gsm_state->wav_fmt = 0;
-
- /* the data should line up on a 33-byte boundary */
- if ((buf->size % 33) != 0) {
- xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "gsm610: received GSM block that does not line up\n");
- this->size = 0;
- return;
- }
-
- in_ptr = 0;
- while (this->size) {
- gsm_decode(this->gsm_state, &this->buf[in_ptr], this->decode_buffer);
- in_ptr += 33;
- this->size -= 33;
-
- /* dispatch the decoded audio; assume that the audio buffer will
- * always contain at least 160 samples */
- audio_buffer = this->stream->audio_out->get_buffer (this->stream->audio_out);
-
- xine_fast_memcpy(audio_buffer->mem, this->decode_buffer,
- GSM610_BLOCK_SIZE * 2);
- audio_buffer->num_frames = GSM610_BLOCK_SIZE;
-
- audio_buffer->vpts = buf->pts;
- buf->pts = 0; /* only first buffer gets the real pts */
- this->stream->audio_out->put_buffer (this->stream->audio_out, audio_buffer, this->stream);
- }
- }
- }
-}
-
-static void gsm610_reset (audio_decoder_t *this_gen) {
-}
-
-static void gsm610_discontinuity (audio_decoder_t *this_gen) {
-}
-
-static void gsm610_dispose (audio_decoder_t *this_gen) {
-
- gsm610_decoder_t *this = (gsm610_decoder_t *) this_gen;
-
- if (this->gsm_state)
- gsm_destroy(this->gsm_state);
-
- if (this->output_open)
- this->stream->audio_out->close (this->stream->audio_out, this->stream);
- this->output_open = 0;
-
- if (this->buf)
- free(this->buf);
-
- free (this_gen);
-}
-
-static audio_decoder_t *open_plugin (audio_decoder_class_t *class_gen, xine_stream_t *stream) {
-
- gsm610_decoder_t *this ;
-
- this = (gsm610_decoder_t *) calloc(1, sizeof(gsm610_decoder_t));
-
- this->audio_decoder.decode_data = gsm610_decode_data;
- this->audio_decoder.reset = gsm610_reset;
- this->audio_decoder.discontinuity = gsm610_discontinuity;
- this->audio_decoder.dispose = gsm610_dispose;
-
- this->output_open = 0;
- this->sample_rate = 0;
- this->stream = stream;
- this->buf = NULL;
- this->size = 0;
-
- return &this->audio_decoder;
-}
-
-static char *get_identifier (audio_decoder_class_t *this) {
- return "GSM 6.10";
-}
-
-static char *get_description (audio_decoder_class_t *this) {
- return "GSM 6.10 audio decoder plugin";
-}
-
-static void dispose_class (audio_decoder_class_t *this) {
- free (this);
-}
-
-static void *init_plugin (xine_t *xine, void *data) {
-
- gsm610_class_t *this ;
-
- this = (gsm610_class_t *) calloc(1, sizeof(gsm610_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_MSGSM,
- BUF_AUDIO_GSM610,
- 0
-};
-
-static const decoder_info_t dec_info_audio = {
- audio_types, /* supported types */
- 9 /* priority */
-};
-
-const plugin_info_t xine_plugin_info[] EXPORTED = {
- /* type, API, "name", version, special_info, init_function */
- { PLUGIN_AUDIO_DECODER, 15, "gsm610", 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 18:08:34 +0000