#include "asterisk.h"
#include <string.h>
#include "asterisk/frame.h"
#include "asterisk/slinfactory.h"
#include "asterisk/logger.h"
#include "asterisk/translate.h"
Include dependency graph for slinfactory.c:
Go to the source code of this file.
Functions | |
unsigned int | ast_slinfactory_available (const struct ast_slinfactory *sf) |
void | ast_slinfactory_destroy (struct ast_slinfactory *sf) |
int | ast_slinfactory_feed (struct ast_slinfactory *sf, struct ast_frame *f) |
void | ast_slinfactory_init (struct ast_slinfactory *sf) |
int | ast_slinfactory_read (struct ast_slinfactory *sf, short *buf, size_t samples) |
Definition in file slinfactory.c.
unsigned int ast_slinfactory_available | ( | const struct ast_slinfactory * | sf | ) |
Definition at line 144 of file slinfactory.c.
References ast_slinfactory::size.
Referenced by ast_write().
00145 { 00146 return sf->size; 00147 }
void ast_slinfactory_destroy | ( | struct ast_slinfactory * | sf | ) |
Definition at line 44 of file slinfactory.c.
References ast_frfree(), AST_LIST_REMOVE_HEAD, ast_translator_free_path(), f, and ast_slinfactory::trans.
Referenced by ast_channel_whisper_stop().
00045 { 00046 struct ast_frame *f; 00047 00048 if (sf->trans) { 00049 ast_translator_free_path(sf->trans); 00050 sf->trans = NULL; 00051 } 00052 00053 while ((f = AST_LIST_REMOVE_HEAD(&sf->queue, frame_list))) 00054 ast_frfree(f); 00055 }
int ast_slinfactory_feed | ( | struct ast_slinfactory * | sf, | |
struct ast_frame * | f | |||
) |
Definition at line 57 of file slinfactory.c.
References AST_FORMAT_SLINEAR, ast_frdup(), ast_getformatname(), AST_LIST_INSERT_TAIL, AST_LIST_TRAVERSE, ast_log(), ast_translate(), ast_translator_build_path(), ast_translator_free_path(), f, ast_slinfactory::format, LOG_WARNING, ast_slinfactory::size, and ast_slinfactory::trans.
Referenced by ast_channel_whisper_feed().
00058 { 00059 struct ast_frame *begin_frame = f, *duped_frame = NULL, *frame_ptr; 00060 unsigned int x; 00061 00062 if (f->subclass != AST_FORMAT_SLINEAR) { 00063 if (sf->trans && f->subclass != sf->format) { 00064 ast_translator_free_path(sf->trans); 00065 sf->trans = NULL; 00066 } 00067 if (!sf->trans) { 00068 if ((sf->trans = ast_translator_build_path(AST_FORMAT_SLINEAR, f->subclass)) == NULL) { 00069 ast_log(LOG_WARNING, "Cannot build a path from %s to slin\n", ast_getformatname(f->subclass)); 00070 return 0; 00071 } else { 00072 sf->format = f->subclass; 00073 } 00074 } 00075 if (!(begin_frame = ast_translate(sf->trans, f, 0)) || !(duped_frame = ast_frdup(begin_frame))) 00076 return 0; 00077 } else { 00078 if (!(duped_frame = ast_frdup(f))) 00079 return 0; 00080 } 00081 00082 x = 0; 00083 AST_LIST_TRAVERSE(&sf->queue, frame_ptr, frame_list) 00084 x++; 00085 00086 AST_LIST_INSERT_TAIL(&sf->queue, duped_frame, frame_list); 00087 00088 sf->size += duped_frame->samples; 00089 00090 return x; 00091 }
void ast_slinfactory_init | ( | struct ast_slinfactory * | sf | ) |
int ast_slinfactory_read | ( | struct ast_slinfactory * | sf, | |
short * | buf, | |||
size_t | samples | |||
) |
Definition at line 93 of file slinfactory.c.
References ast_frfree(), AST_LIST_REMOVE_HEAD, ast_frame::data, ast_slinfactory::hold, ast_slinfactory::holdlen, offset, ast_slinfactory::offset, ast_frame::samples, and ast_slinfactory::size.
Referenced by ast_write().
00094 { 00095 struct ast_frame *frame_ptr; 00096 unsigned int sofar = 0, ineed, remain; 00097 short *frame_data, *offset = buf; 00098 00099 while (sofar < samples) { 00100 ineed = samples - sofar; 00101 00102 if (sf->holdlen) { 00103 if ((sofar + sf->holdlen) <= ineed) { 00104 memcpy(offset, sf->hold, sf->holdlen * sizeof(*offset)); 00105 sofar += sf->holdlen; 00106 offset += sf->holdlen; 00107 sf->holdlen = 0; 00108 sf->offset = sf->hold; 00109 } else { 00110 remain = sf->holdlen - ineed; 00111 memcpy(offset, sf->offset, ineed * sizeof(*offset)); 00112 sofar += ineed; 00113 sf->offset += ineed; 00114 sf->holdlen = remain; 00115 } 00116 continue; 00117 } 00118 00119 if ((frame_ptr = AST_LIST_REMOVE_HEAD(&sf->queue, frame_list))) { 00120 frame_data = frame_ptr->data; 00121 00122 if ((sofar + frame_ptr->samples) <= ineed) { 00123 memcpy(offset, frame_data, frame_ptr->samples * sizeof(*offset)); 00124 sofar += frame_ptr->samples; 00125 offset += frame_ptr->samples; 00126 } else { 00127 remain = frame_ptr->samples - ineed; 00128 memcpy(offset, frame_data, ineed * sizeof(*offset)); 00129 sofar += ineed; 00130 frame_data += ineed; 00131 memcpy(sf->hold, frame_data, remain * sizeof(*offset)); 00132 sf->holdlen = remain; 00133 } 00134 ast_frfree(frame_ptr); 00135 } else { 00136 break; 00137 } 00138 } 00139 00140 sf->size -= sofar; 00141 return sofar; 00142 }