#include "asterisk.h"
#include <unistd.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdlib.h>
#include <sys/time.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include "asterisk/lock.h"
#include "asterisk/channel.h"
#include "asterisk/file.h"
#include "asterisk/logger.h"
#include "asterisk/sched.h"
#include "asterisk/module.h"
#include "asterisk/endian.h"
Include dependency graph for format_h264.c:
Go to the source code of this file.
Data Structures | |
struct | h264_desc |
Defines | |
#define | BUF_SIZE 4096 |
Functions | |
AST_MODULE_INFO_STANDARD (ASTERISK_GPL_KEY,"Raw H.264 data") | |
static int | h264_open (struct ast_filestream *s) |
static struct ast_frame * | h264_read (struct ast_filestream *s, int *whennext) |
static int | h264_seek (struct ast_filestream *fs, off_t sample_offset, int whence) |
static off_t | h264_tell (struct ast_filestream *fs) |
static int | h264_trunc (struct ast_filestream *fs) |
static int | h264_write (struct ast_filestream *s, struct ast_frame *f) |
static int | load_module (void) |
static int | unload_module (void) |
Variables | |
static struct ast_format | h264_f |
Definition in file format_h264.c.
#define BUF_SIZE 4096 |
Definition at line 53 of file format_h264.c.
AST_MODULE_INFO_STANDARD | ( | ASTERISK_GPL_KEY | , | |
"Raw H.264 data" | ||||
) |
static int h264_open | ( | struct ast_filestream * | s | ) | [static] |
Definition at line 58 of file format_h264.c.
References ast_log(), LOG_WARNING, and s.
00059 { 00060 unsigned int ts; 00061 int res; 00062 if ((res = fread(&ts, 1, sizeof(ts), s->f)) < sizeof(ts)) { 00063 ast_log(LOG_WARNING, "Empty file!\n"); 00064 return -1; 00065 } 00066 return 0; 00067 }
static struct ast_frame* h264_read | ( | struct ast_filestream * | s, | |
int * | whennext | |||
) | [static] |
Definition at line 69 of file format_h264.c.
References AST_FORMAT_H264, AST_FRAME_SET_BUFFER, AST_FRAME_VIDEO, AST_FRIENDLY_OFFSET, ast_log(), BUF_SIZE, errno, h264_desc::lastts, len, LOG_WARNING, s, and ast_frame::ts.
00070 { 00071 int res; 00072 int mark=0; 00073 unsigned short len; 00074 unsigned int ts; 00075 struct h264_desc *fs = (struct h264_desc *)s->_private; 00076 00077 /* Send a frame from the file to the appropriate channel */ 00078 if ((res = fread(&len, 1, sizeof(len), s->f)) < 1) 00079 return NULL; 00080 len = ntohs(len); 00081 mark = (len & 0x8000) ? 1 : 0; 00082 len &= 0x7fff; 00083 if (len > BUF_SIZE) { 00084 ast_log(LOG_WARNING, "Length %d is too long\n", len); 00085 len = BUF_SIZE; /* XXX truncate */ 00086 } 00087 s->fr.frametype = AST_FRAME_VIDEO; 00088 s->fr.subclass = AST_FORMAT_H264; 00089 s->fr.mallocd = 0; 00090 AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, len); 00091 if ((res = fread(s->fr.data, 1, s->fr.datalen, s->f)) != s->fr.datalen) { 00092 if (res) 00093 ast_log(LOG_WARNING, "Short read (%d of %d) (%s)!\n", res, len, strerror(errno)); 00094 return NULL; 00095 } 00096 s->fr.samples = fs->lastts; 00097 s->fr.datalen = len; 00098 s->fr.subclass |= mark; 00099 s->fr.delivery.tv_sec = 0; 00100 s->fr.delivery.tv_usec = 0; 00101 if ((res = fread(&ts, 1, sizeof(ts), s->f)) == sizeof(ts)) { 00102 fs->lastts = ntohl(ts); 00103 *whennext = fs->lastts * 4/45; 00104 } else 00105 *whennext = 0; 00106 return &s->fr; 00107 }
static int h264_seek | ( | struct ast_filestream * | fs, | |
off_t | sample_offset, | |||
int | whence | |||
) | [static] |
static off_t h264_tell | ( | struct ast_filestream * | fs | ) | [static] |
Definition at line 156 of file format_h264.c.
References ast_filestream::f, and offset.
00157 { 00158 off_t offset = ftell(fs->f); 00159 return offset; /* XXX totally bogus, needs fixing */ 00160 }
static int h264_trunc | ( | struct ast_filestream * | fs | ) | [static] |
Definition at line 148 of file format_h264.c.
References ast_filestream::f.
00149 { 00150 /* Truncate file to current length */ 00151 if (ftruncate(fileno(fs->f), ftell(fs->f)) < 0) 00152 return -1; 00153 return 0; 00154 }
static int h264_write | ( | struct ast_filestream * | s, | |
struct ast_frame * | f | |||
) | [static] |
Definition at line 109 of file format_h264.c.
References AST_FORMAT_H264, AST_FRAME_VIDEO, ast_log(), errno, f, len, LOG_WARNING, and s.
00110 { 00111 int res; 00112 unsigned int ts; 00113 unsigned short len; 00114 int mark; 00115 00116 if (f->frametype != AST_FRAME_VIDEO) { 00117 ast_log(LOG_WARNING, "Asked to write non-video frame!\n"); 00118 return -1; 00119 } 00120 mark = (f->subclass & 0x1) ? 0x8000 : 0; 00121 if ((f->subclass & ~0x1) != AST_FORMAT_H264) { 00122 ast_log(LOG_WARNING, "Asked to write non-h264 frame (%d)!\n", f->subclass); 00123 return -1; 00124 } 00125 ts = htonl(f->samples); 00126 if ((res = fwrite(&ts, 1, sizeof(ts), s->f)) != sizeof(ts)) { 00127 ast_log(LOG_WARNING, "Bad write (%d/4): %s\n", res, strerror(errno)); 00128 return -1; 00129 } 00130 len = htons(f->datalen | mark); 00131 if ((res = fwrite(&len, 1, sizeof(len), s->f)) != sizeof(len)) { 00132 ast_log(LOG_WARNING, "Bad write (%d/2): %s\n", res, strerror(errno)); 00133 return -1; 00134 } 00135 if ((res = fwrite(f->data, 1, f->datalen, s->f)) != f->datalen) { 00136 ast_log(LOG_WARNING, "Bad write (%d/%d): %s\n", res, f->datalen, strerror(errno)); 00137 return -1; 00138 } 00139 return 0; 00140 }
static int load_module | ( | void | ) | [static] |
Definition at line 176 of file format_h264.c.
References ast_format_register, and h264_f.
00177 { 00178 return ast_format_register(&h264_f); 00179 }
static int unload_module | ( | void | ) | [static] |
Definition at line 181 of file format_h264.c.
References ast_format_unregister(), h264_f, and ast_format::name.
00182 { 00183 return ast_format_unregister(h264_f.name); 00184 }
struct ast_format h264_f [static] |