#include <stdlib.h>
#include <unistd.h>
#include <string.h>
Include dependency graph for slinfactory.h:
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Go to the source code of this file.
Data Structures | |
struct | ast_slinfactory |
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.h.
unsigned int ast_slinfactory_available | ( | const struct ast_slinfactory * | sf | ) |
Definition at line 153 of file slinfactory.c.
References ast_slinfactory::size.
Referenced by audio_audiohook_write_list(), audiohook_read_frame_both(), and audiohook_read_frame_single().
00154 { 00155 return sf->size; 00156 }
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_audiohook_destroy().
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_frfree, 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_audiohook_write_frame().
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 00068 if (!sf->trans) { 00069 if ((sf->trans = ast_translator_build_path(AST_FORMAT_SLINEAR, f->subclass)) == NULL) { 00070 ast_log(LOG_WARNING, "Cannot build a path from %s to slin\n", ast_getformatname(f->subclass)); 00071 return 0; 00072 } else { 00073 sf->format = f->subclass; 00074 } 00075 } 00076 00077 if (!(begin_frame = ast_translate(sf->trans, f, 0))) 00078 return 0; 00079 00080 duped_frame = ast_frdup(begin_frame); 00081 00082 ast_frfree(begin_frame); 00083 00084 if (!duped_frame) 00085 return 0; 00086 } else { 00087 if (!(duped_frame = ast_frdup(f))) 00088 return 0; 00089 } 00090 00091 x = 0; 00092 AST_LIST_TRAVERSE(&sf->queue, frame_ptr, frame_list) 00093 x++; 00094 00095 AST_LIST_INSERT_TAIL(&sf->queue, duped_frame, frame_list); 00096 00097 sf->size += duped_frame->samples; 00098 00099 return x; 00100 }
void ast_slinfactory_init | ( | struct ast_slinfactory * | sf | ) |
int ast_slinfactory_read | ( | struct ast_slinfactory * | sf, | |
short * | buf, | |||
size_t | samples | |||
) |
Definition at line 102 of file slinfactory.c.
References ast_frfree, AST_LIST_REMOVE_HEAD, ast_frame::data, ast_slinfactory::hold, ast_slinfactory::holdlen, ast_slinfactory::offset, offset, ast_frame::samples, and ast_slinfactory::size.
Referenced by audio_audiohook_write_list(), audiohook_read_frame_both(), and audiohook_read_frame_single().
00103 { 00104 struct ast_frame *frame_ptr; 00105 unsigned int sofar = 0, ineed, remain; 00106 short *frame_data, *offset = buf; 00107 00108 while (sofar < samples) { 00109 ineed = samples - sofar; 00110 00111 if (sf->holdlen) { 00112 if (sf->holdlen <= ineed) { 00113 memcpy(offset, sf->hold, sf->holdlen * sizeof(*offset)); 00114 sofar += sf->holdlen; 00115 offset += sf->holdlen; 00116 sf->holdlen = 0; 00117 sf->offset = sf->hold; 00118 } else { 00119 remain = sf->holdlen - ineed; 00120 memcpy(offset, sf->offset, ineed * sizeof(*offset)); 00121 sofar += ineed; 00122 sf->offset += ineed; 00123 sf->holdlen = remain; 00124 } 00125 continue; 00126 } 00127 00128 if ((frame_ptr = AST_LIST_REMOVE_HEAD(&sf->queue, frame_list))) { 00129 frame_data = frame_ptr->data; 00130 00131 if (frame_ptr->samples <= ineed) { 00132 memcpy(offset, frame_data, frame_ptr->samples * sizeof(*offset)); 00133 sofar += frame_ptr->samples; 00134 offset += frame_ptr->samples; 00135 } else { 00136 remain = frame_ptr->samples - ineed; 00137 memcpy(offset, frame_data, ineed * sizeof(*offset)); 00138 sofar += ineed; 00139 frame_data += ineed; 00140 memcpy(sf->hold, frame_data, remain * sizeof(*offset)); 00141 sf->holdlen = remain; 00142 } 00143 ast_frfree(frame_ptr); 00144 } else { 00145 break; 00146 } 00147 } 00148 00149 sf->size -= sofar; 00150 return sofar; 00151 }