Save to raw, headerless h263 data. More...
#include "asterisk.h"
#include "asterisk/mod_format.h"
#include "asterisk/module.h"
#include "asterisk/endian.h"
Go to the source code of this file.
Data Structures | |
struct | h263_desc |
Defines | |
#define | BUF_SIZE 32768 |
Functions | |
static void | __reg_module (void) |
static void | __unreg_module (void) |
static int | h263_open (struct ast_filestream *s) |
static struct ast_frame * | h263_read (struct ast_filestream *s, int *whennext) |
static int | h263_seek (struct ast_filestream *fs, off_t sample_offset, int whence) |
static off_t | h263_tell (struct ast_filestream *fs) |
static int | h263_trunc (struct ast_filestream *fs) |
static int | h263_write (struct ast_filestream *fs, struct ast_frame *f) |
static int | load_module (void) |
static int | unload_module (void) |
Variables | |
static struct ast_module_info __MODULE_INFO_SECTION | __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "Raw H.263 data" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .load_pri = 10, } |
static struct ast_module_info * | ast_module_info = &__mod_info |
static struct ast_format | h263_f |
#define BUF_SIZE 32768 |
Definition at line 45 of file format_h263.c.
Referenced by h263_read().
static void __reg_module | ( | void | ) | [static] |
Definition at line 190 of file format_h263.c.
static void __unreg_module | ( | void | ) | [static] |
Definition at line 190 of file format_h263.c.
static int h263_open | ( | struct ast_filestream * | s | ) | [static] |
Definition at line 52 of file format_h263.c.
References ast_log(), ast_filestream::f, and LOG_WARNING.
{ unsigned int ts; int res; if ((res = fread(&ts, 1, sizeof(ts), s->f)) < sizeof(ts)) { ast_log(LOG_WARNING, "Empty file!\n"); return -1; } return 0; }
static struct ast_frame* h263_read | ( | struct ast_filestream * | s, |
int * | whennext | ||
) | [static, read] |
Definition at line 64 of file format_h263.c.
References ast_filestream::_private, AST_FORMAT_H263, AST_FRAME_SET_BUFFER, AST_FRAME_VIDEO, AST_FRIENDLY_OFFSET, ast_log(), ast_filestream::buf, BUF_SIZE, ast_frame::data, ast_frame::datalen, ast_frame::delivery, errno, ast_filestream::f, ast_filestream::fr, ast_frame::frametype, h263_desc::lastts, len(), LOG_WARNING, ast_frame::mallocd, ast_frame::ptr, ast_frame::samples, ast_frame::subclass, and ast_frame::ts.
{ int res; int mark; unsigned short len; unsigned int ts; struct h263_desc *fs = (struct h263_desc *)s->_private; /* Send a frame from the file to the appropriate channel */ if ((res = fread(&len, 1, sizeof(len), s->f)) < 1) return NULL; len = ntohs(len); mark = (len & 0x8000) ? 1 : 0; len &= 0x7fff; if (len > BUF_SIZE) { ast_log(LOG_WARNING, "Length %d is too long\n", len); return NULL; } s->fr.frametype = AST_FRAME_VIDEO; s->fr.subclass = AST_FORMAT_H263; s->fr.mallocd = 0; AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, len); if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) { if (res) ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno)); return NULL; } s->fr.samples = fs->lastts; /* XXX what ? */ s->fr.datalen = len; s->fr.subclass |= mark; s->fr.delivery.tv_sec = 0; s->fr.delivery.tv_usec = 0; if ((res = fread(&ts, 1, sizeof(ts), s->f)) == sizeof(ts)) { fs->lastts = ntohl(ts); *whennext = fs->lastts * 4/45; } else *whennext = 0; return &s->fr; }
static int h263_seek | ( | struct ast_filestream * | fs, |
off_t | sample_offset, | ||
int | whence | ||
) | [static] |
Definition at line 140 of file format_h263.c.
{ /* No way Jose */ return -1; }
static off_t h263_tell | ( | struct ast_filestream * | fs | ) | [static] |
Definition at line 154 of file format_h263.c.
References ast_filestream::f.
{ off_t offset = ftello(fs->f); return offset; /* XXX totally bogus, needs fixing */ }
static int h263_trunc | ( | struct ast_filestream * | fs | ) | [static] |
Definition at line 146 of file format_h263.c.
References ast_filestream::f.
static int h263_write | ( | struct ast_filestream * | fs, |
struct ast_frame * | f | ||
) | [static] |
Definition at line 104 of file format_h263.c.
References AST_FORMAT_H263, AST_FRAME_VIDEO, ast_log(), ast_frame::data, ast_frame::datalen, errno, ast_filestream::f, ast_frame::frametype, fwrite, len(), LOG_WARNING, ast_frame::ptr, ast_frame::samples, and ast_frame::subclass.
{ int res; unsigned int ts; unsigned short len; int subclass; int mark=0; if (f->frametype != AST_FRAME_VIDEO) { ast_log(LOG_WARNING, "Asked to write non-video frame!\n"); return -1; } subclass = f->subclass; if (subclass & 0x1) mark=0x8000; subclass &= ~0x1; if (subclass != AST_FORMAT_H263) { ast_log(LOG_WARNING, "Asked to write non-h263 frame (%d)!\n", f->subclass); return -1; } ts = htonl(f->samples); if ((res = fwrite(&ts, 1, sizeof(ts), fs->f)) != sizeof(ts)) { ast_log(LOG_WARNING, "Bad write (%d/4): %s\n", res, strerror(errno)); return -1; } len = htons(f->datalen | mark); if ((res = fwrite(&len, 1, sizeof(len), fs->f)) != sizeof(len)) { ast_log(LOG_WARNING, "Bad write (%d/2): %s\n", res, strerror(errno)); return -1; } if ((res = fwrite(f->data.ptr, 1, f->datalen, fs->f)) != f->datalen) { ast_log(LOG_WARNING, "Bad write (%d/%d): %s\n", res, f->datalen, strerror(errno)); return -1; } return 0; }
static int load_module | ( | void | ) | [static] |
Definition at line 174 of file format_h263.c.
References ast_format_register, AST_MODULE_LOAD_FAILURE, and AST_MODULE_LOAD_SUCCESS.
{ if (ast_format_register(&h263_f)) return AST_MODULE_LOAD_FAILURE; return AST_MODULE_LOAD_SUCCESS; }
static int unload_module | ( | void | ) | [static] |
Definition at line 181 of file format_h263.c.
References ast_format_unregister(), and ast_format::name.
{ return ast_format_unregister(h263_f.name); }
struct ast_module_info __MODULE_INFO_SECTION __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "Raw H.263 data" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .load_pri = 10, } [static] |
Definition at line 190 of file format_h263.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 190 of file format_h263.c.
struct ast_format h263_f [static] |
Definition at line 160 of file format_h263.c.