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Version 0.1.2 from FTP
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@198 65c4cc65-6c06-0410-ace0-fbb531ad65f3
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102
frame.c
102
frame.c
@@ -13,7 +13,9 @@
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#include <asterisk/frame.h>
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#include <asterisk/logger.h>
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#include <asterisk/options.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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/*
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@@ -74,16 +76,106 @@ struct ast_frame *ast_frisolate(struct ast_frame *fr)
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} else
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out->src = fr->src;
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if (!(fr->mallocd & AST_MALLOCD_DATA)) {
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out->data = malloc(fr->datalen + fr->offset);
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out->data += fr->offset;
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out->offset = fr->offset;
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out->datalen = fr->datalen;
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memcpy(out->data, fr->data, fr->datalen);
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out->data = malloc(fr->datalen + AST_FRIENDLY_OFFSET);
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if (!out->data) {
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free(out);
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ast_log(LOG_WARNING, "Out of memory\n");
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return NULL;
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}
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out->data += AST_FRIENDLY_OFFSET;
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out->offset = AST_FRIENDLY_OFFSET;
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out->datalen = fr->datalen;
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memcpy(out->data, fr->data, fr->datalen);
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}
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out->mallocd = AST_MALLOCD_HDR | AST_MALLOCD_SRC | AST_MALLOCD_DATA;
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return out;
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}
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struct ast_frame *ast_frdup(struct ast_frame *f)
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{
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struct ast_frame *ret;
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int p;
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p = f->mallocd;
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f->mallocd = 0;
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/* Make frisolate think this is a 100% static frame, and make a duplicate */
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ret = ast_frisolate(f);
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/* Restore its true malloc status */
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f->mallocd = p;
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return ret;
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}
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struct ast_frame *ast_fr_fdread(int fd)
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{
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char buf[4096];
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int res;
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struct ast_frame *f = (struct ast_frame *)buf;
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/* Read a frame directly from there. They're always in the
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right format. */
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if (read(fd, buf, sizeof(struct ast_frame))
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== sizeof(struct ast_frame)) {
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/* read the frame header */
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f->mallocd = 0;
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/* Re-write data position */
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f->data = buf + sizeof(struct ast_frame);
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f->offset = 0;
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/* Forget about being mallocd */
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f->mallocd = 0;
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/* Re-write the source */
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f->src = __FUNCTION__;
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if (f->datalen > sizeof(buf) - sizeof(struct ast_frame)) {
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/* Really bad read */
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ast_log(LOG_WARNING, "Strange read (%d bytes)\n", f->datalen);
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return NULL;
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}
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if (f->datalen) {
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if ((res = read(fd, f->data, f->datalen)) != f->datalen) {
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/* Bad read */
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ast_log(LOG_WARNING, "How very strange, expected %d, got %d\n", f->datalen, res);
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return NULL;
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}
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}
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return ast_frisolate(f);
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} else if (option_debug)
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ast_log(LOG_DEBUG, "NULL or invalid header\n");
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/* Null if there was an error */
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return NULL;
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}
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/* Some convenient routines for sending frames to/from stream or datagram
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sockets, pipes, etc (maybe even files) */
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int ast_fr_fdwrite(int fd, struct ast_frame *frame)
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{
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/* Write the frame exactly */
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if (write(fd, frame, sizeof(struct ast_frame)) != sizeof(struct ast_frame)) {
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ast_log(LOG_WARNING, "Write error\n");
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return -1;
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}
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if (write(fd, frame->data, frame->datalen) != frame->datalen) {
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ast_log(LOG_WARNING, "Write error\n");
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return -1;
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}
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return 0;
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}
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int ast_getformatbyname(char *name)
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{
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if (!strcasecmp(name, "g723.1"))
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return AST_FORMAT_G723_1;
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else if (!strcasecmp(name, "gsm"))
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return AST_FORMAT_GSM;
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else if (!strcasecmp(name, "ulaw"))
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return AST_FORMAT_ULAW;
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else if (!strcasecmp(name, "alaw"))
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return AST_FORMAT_ALAW;
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else if (!strcasecmp(name, "mp3"))
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return AST_FORMAT_MP3;
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else if (!strcasecmp(name, "slinear"))
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return AST_FORMAT_SLINEAR;
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else if (!strcasecmp(name, "lpc10"))
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return AST_FORMAT_LPC10;
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else if (!strcasecmp(name, "all"))
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return 0x7FFFFFFF;
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return 0;
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}
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