mirror of
https://github.com/asterisk/asterisk.git
synced 2025-09-03 03:20:57 +00:00
Largely simplify format handlers (for file copy etc.)
collecting common functions in a single place and removing them from the individual handlers. The full description is on mantis, http://bugs.digium.com/view.php?id=6375 and only the ogg_vorbis handler needs to be converted to the new structure. As a result of this change, format_au.c and format_pcm_alaw.c should go away (in a separate commit) as their functionality (trivial) has been merged in another file. git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@17243 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Luigi Rizzo
@@ -58,6 +58,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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/* We can only read/write chunks of FRAME_TIME ms G.726 data */
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#define FRAME_TIME 10 /* 10 ms size */
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#define BUF_SIZE (5*FRAME_TIME) /* max frame size in bytes ? */
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/* Frame sizes in bytes */
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static int frame_size[4] = {
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FRAME_TIME * 5,
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@@ -66,293 +67,79 @@ static int frame_size[4] = {
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FRAME_TIME * 2
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};
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struct ast_filestream {
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/* Do not place anything before "reserved" */
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void *reserved[AST_RESERVED_POINTERS];
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/* This is what a filestream means to us */
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FILE *f; /* Open file descriptor */
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int rate; /* RATE_* defines */
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struct ast_frame fr; /* Frame information */
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char waste[AST_FRIENDLY_OFFSET]; /* Buffer for sending frames, etc */
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char empty; /* Empty character */
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unsigned char g726[FRAME_TIME * 5]; /* G.726 encoded voice */
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struct g726_desc {
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int rate; /* RATE_* defines */
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};
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AST_MUTEX_DEFINE_STATIC(g726_lock);
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static int glistcnt = 0;
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static char *desc = "Raw G.726 (16/24/32/40kbps) data";
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static char *name40 = "g726-40";
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static char *name32 = "g726-32";
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static char *name24 = "g726-24";
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static char *name16 = "g726-16";
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static char *exts40 = "g726-40";
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static char *exts32 = "g726-32";
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static char *exts24 = "g726-24";
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static char *exts16 = "g726-16";
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/*
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* Rate dependant format functions (open, rewrite)
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*/
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static struct ast_filestream *g726_40_open(FILE *f)
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static int g726_open(struct ast_filestream *tmp, int rate)
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{
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/* We don't have any header to read or anything really, but
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if we did, it would go here. We also might want to check
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and be sure it's a valid file. */
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struct ast_filestream *tmp;
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if ((tmp = malloc(sizeof(struct ast_filestream)))) {
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memset(tmp, 0, sizeof(struct ast_filestream));
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if (ast_mutex_lock(&g726_lock)) {
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ast_log(LOG_WARNING, "Unable to lock g726 list.\n");
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free(tmp);
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return NULL;
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}
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tmp->f = f;
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tmp->rate = RATE_40;
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tmp->fr.data = tmp->g726;
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tmp->fr.frametype = AST_FRAME_VOICE;
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tmp->fr.subclass = AST_FORMAT_G726;
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/* datalen will vary for each frame */
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tmp->fr.src = name40;
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tmp->fr.mallocd = 0;
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glistcnt++;
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if (option_debug)
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ast_log(LOG_DEBUG, "Created filestream G.726-%dk.\n",
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40 - tmp->rate * 8);
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ast_mutex_unlock(&g726_lock);
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ast_update_use_count();
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}
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return tmp;
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struct g726_desc *s = (struct g726_desc *)tmp->private;
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s->rate = rate;
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if (option_debug)
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ast_log(LOG_DEBUG, "Created filestream G.726-%dk.\n",
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40 - s->rate * 8);
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return 0;
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}
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static struct ast_filestream *g726_32_open(FILE *f)
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static int g726_40_open(struct ast_filestream *s)
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{
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/* We don't have any header to read or anything really, but
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if we did, it would go here. We also might want to check
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and be sure it's a valid file. */
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struct ast_filestream *tmp;
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if ((tmp = malloc(sizeof(struct ast_filestream)))) {
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memset(tmp, 0, sizeof(struct ast_filestream));
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if (ast_mutex_lock(&g726_lock)) {
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ast_log(LOG_WARNING, "Unable to lock g726 list.\n");
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free(tmp);
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return NULL;
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}
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tmp->f = f;
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tmp->rate = RATE_32;
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tmp->fr.data = tmp->g726;
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tmp->fr.frametype = AST_FRAME_VOICE;
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tmp->fr.subclass = AST_FORMAT_G726;
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/* datalen will vary for each frame */
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tmp->fr.src = name32;
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tmp->fr.mallocd = 0;
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glistcnt++;
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if (option_debug)
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ast_log(LOG_DEBUG, "Created filestream G.726-%dk.\n",
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40 - tmp->rate * 8);
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ast_mutex_unlock(&g726_lock);
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ast_update_use_count();
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}
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return tmp;
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return g726_open(s, RATE_40);
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}
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static struct ast_filestream *g726_24_open(FILE *f)
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static int g726_32_open(struct ast_filestream *s)
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{
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/* We don't have any header to read or anything really, but
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if we did, it would go here. We also might want to check
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and be sure it's a valid file. */
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struct ast_filestream *tmp;
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if ((tmp = malloc(sizeof(struct ast_filestream)))) {
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memset(tmp, 0, sizeof(struct ast_filestream));
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if (ast_mutex_lock(&g726_lock)) {
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ast_log(LOG_WARNING, "Unable to lock g726 list.\n");
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free(tmp);
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return NULL;
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}
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tmp->f = f;
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tmp->rate = RATE_24;
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tmp->fr.data = tmp->g726;
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tmp->fr.frametype = AST_FRAME_VOICE;
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tmp->fr.subclass = AST_FORMAT_G726;
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/* datalen will vary for each frame */
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tmp->fr.src = name24;
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tmp->fr.mallocd = 0;
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glistcnt++;
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if (option_debug)
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ast_log(LOG_DEBUG, "Created filestream G.726-%dk.\n",
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40 - tmp->rate * 8);
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ast_mutex_unlock(&g726_lock);
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ast_update_use_count();
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}
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return tmp;
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return g726_open(s, RATE_32);
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}
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static struct ast_filestream *g726_16_open(FILE *f)
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static int g726_24_open(struct ast_filestream *s)
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{
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/* We don't have any header to read or anything really, but
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if we did, it would go here. We also might want to check
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and be sure it's a valid file. */
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struct ast_filestream *tmp;
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if ((tmp = malloc(sizeof(struct ast_filestream)))) {
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memset(tmp, 0, sizeof(struct ast_filestream));
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if (ast_mutex_lock(&g726_lock)) {
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ast_log(LOG_WARNING, "Unable to lock g726 list.\n");
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free(tmp);
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return NULL;
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}
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tmp->f = f;
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tmp->rate = RATE_16;
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tmp->fr.data = tmp->g726;
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tmp->fr.frametype = AST_FRAME_VOICE;
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tmp->fr.subclass = AST_FORMAT_G726;
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/* datalen will vary for each frame */
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tmp->fr.src = name16;
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tmp->fr.mallocd = 0;
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glistcnt++;
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if (option_debug)
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ast_log(LOG_DEBUG, "Created filestream G.726-%dk.\n",
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40 - tmp->rate * 8);
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ast_mutex_unlock(&g726_lock);
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ast_update_use_count();
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}
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return tmp;
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return g726_open(s, RATE_24);
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}
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static struct ast_filestream *g726_40_rewrite(FILE *f, const char *comment)
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static int g726_16_open(struct ast_filestream *s)
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{
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/* We don't have any header to read or anything really, but
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if we did, it would go here. We also might want to check
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and be sure it's a valid file. */
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struct ast_filestream *tmp;
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if ((tmp = malloc(sizeof(struct ast_filestream)))) {
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memset(tmp, 0, sizeof(struct ast_filestream));
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if (ast_mutex_lock(&g726_lock)) {
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ast_log(LOG_WARNING, "Unable to lock g726 list.\n");
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free(tmp);
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return NULL;
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}
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tmp->f = f;
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tmp->rate = RATE_40;
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glistcnt++;
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if (option_debug)
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ast_log(LOG_DEBUG, "Created filestream G.726-%dk.\n",
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40 - tmp->rate * 8);
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ast_mutex_unlock(&g726_lock);
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ast_update_use_count();
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} else
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ast_log(LOG_WARNING, "Out of memory\n");
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return tmp;
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return g726_open(s, RATE_16);
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}
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static struct ast_filestream *g726_32_rewrite(FILE *f, const char *comment)
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static int g726_40_rewrite(struct ast_filestream *s, const char *comment)
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{
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/* We don't have any header to read or anything really, but
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if we did, it would go here. We also might want to check
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and be sure it's a valid file. */
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struct ast_filestream *tmp;
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if ((tmp = malloc(sizeof(struct ast_filestream)))) {
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memset(tmp, 0, sizeof(struct ast_filestream));
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if (ast_mutex_lock(&g726_lock)) {
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ast_log(LOG_WARNING, "Unable to lock g726 list.\n");
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free(tmp);
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return NULL;
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}
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tmp->f = f;
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tmp->rate = RATE_32;
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glistcnt++;
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if (option_debug)
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ast_log(LOG_DEBUG, "Created filestream G.726-%dk.\n",
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40 - tmp->rate * 8);
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ast_mutex_unlock(&g726_lock);
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ast_update_use_count();
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} else
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ast_log(LOG_WARNING, "Out of memory\n");
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return tmp;
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return g726_open(s, RATE_40);
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}
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static struct ast_filestream *g726_24_rewrite(FILE *f, const char *comment)
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static int g726_32_rewrite(struct ast_filestream *s, const char *comment)
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{
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/* We don't have any header to read or anything really, but
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if we did, it would go here. We also might want to check
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and be sure it's a valid file. */
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struct ast_filestream *tmp;
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if ((tmp = malloc(sizeof(struct ast_filestream)))) {
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memset(tmp, 0, sizeof(struct ast_filestream));
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if (ast_mutex_lock(&g726_lock)) {
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ast_log(LOG_WARNING, "Unable to lock g726 list.\n");
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free(tmp);
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return NULL;
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}
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tmp->f = f;
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tmp->rate = RATE_24;
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glistcnt++;
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if (option_debug)
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ast_log(LOG_DEBUG, "Created filestream G.726-%dk.\n",
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40 - tmp->rate * 8);
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ast_mutex_unlock(&g726_lock);
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ast_update_use_count();
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} else
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ast_log(LOG_WARNING, "Out of memory\n");
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return tmp;
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return g726_open(s, RATE_32);
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}
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static struct ast_filestream *g726_16_rewrite(FILE *f, const char *comment)
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static int g726_24_rewrite(struct ast_filestream *s, const char *comment)
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{
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/* We don't have any header to read or anything really, but
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if we did, it would go here. We also might want to check
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and be sure it's a valid file. */
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struct ast_filestream *tmp;
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if ((tmp = malloc(sizeof(struct ast_filestream)))) {
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memset(tmp, 0, sizeof(struct ast_filestream));
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if (ast_mutex_lock(&g726_lock)) {
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ast_log(LOG_WARNING, "Unable to lock g726 list.\n");
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free(tmp);
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return NULL;
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}
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tmp->f = f;
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tmp->rate = RATE_16;
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glistcnt++;
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if (option_debug)
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ast_log(LOG_DEBUG, "Created filestream G.726-%dk.\n",
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40 - tmp->rate * 8);
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ast_mutex_unlock(&g726_lock);
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ast_update_use_count();
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} else
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ast_log(LOG_WARNING, "Out of memory\n");
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return tmp;
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return g726_open(s, RATE_24);
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}
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static int g726_16_rewrite(struct ast_filestream *s, const char *comment)
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{
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return g726_open(s, RATE_16);
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}
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/*
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* Rate independent format functions (close, read, write)
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* Rate independent format functions (read, write)
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*/
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static void g726_close(struct ast_filestream *s)
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{
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if (ast_mutex_lock(&g726_lock)) {
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ast_log(LOG_WARNING, "Unable to lock g726 list.\n");
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return;
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}
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glistcnt--;
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if (option_debug)
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ast_log(LOG_DEBUG, "Closed filestream G.726-%dk.\n", 40 - s->rate * 8);
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ast_mutex_unlock(&g726_lock);
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ast_update_use_count();
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fclose(s->f);
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free(s);
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s = NULL;
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}
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static struct ast_frame *g726_read(struct ast_filestream *s, int *whennext)
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{
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int res;
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struct g726_desc *fs = (struct g726_desc *)s->private;
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/* Send a frame from the file to the appropriate channel */
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s->fr.frametype = AST_FRAME_VOICE;
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s->fr.subclass = AST_FORMAT_G726;
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s->fr.offset = AST_FRIENDLY_OFFSET;
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s->fr.samples = 8 * FRAME_TIME;
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s->fr.datalen = frame_size[s->rate];
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s->fr.mallocd = 0;
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s->fr.data = s->g726;
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if ((res = fread(s->g726, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
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FR_SET_BUF(&s->fr, s->buf, AST_FRIENDLY_OFFSET, frame_size[fs->rate]);
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s->fr.samples = 8 * FRAME_TIME;
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if ((res = fread(s->fr.data, 1, s->fr.datalen, s->f)) != s->fr.datalen) {
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if (res)
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ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno));
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return NULL;
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@@ -361,9 +148,11 @@ static struct ast_frame *g726_read(struct ast_filestream *s, int *whennext)
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return &s->fr;
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}
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static int g726_write(struct ast_filestream *fs, struct ast_frame *f)
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static int g726_write(struct ast_filestream *s, struct ast_frame *f)
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{
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int res;
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struct g726_desc *fs = (struct g726_desc *)s->private;
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if (f->frametype != AST_FRAME_VOICE) {
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ast_log(LOG_WARNING, "Asked to write non-voice frame!\n");
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return -1;
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@@ -378,19 +167,14 @@ static int g726_write(struct ast_filestream *fs, struct ast_frame *f)
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f->datalen, frame_size[fs->rate]);
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return -1;
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||||
}
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||||
if ((res = fwrite(f->data, 1, f->datalen, fs->f)) != f->datalen) {
|
||||
ast_log(LOG_WARNING, "Bad write (%d/%d): %s\n",
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res, frame_size[fs->rate], strerror(errno));
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||||
if ((res = fwrite(f->data, 1, f->datalen, s->f)) != f->datalen) {
|
||||
ast_log(LOG_WARNING, "Bad write (%d/%d): %s\n",
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res, frame_size[fs->rate], strerror(errno));
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return -1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static char *g726_getcomment(struct ast_filestream *s)
|
||||
{
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||||
return NULL;
|
||||
}
|
||||
|
||||
static int g726_seek(struct ast_filestream *fs, off_t sample_offset, int whence)
|
||||
{
|
||||
return -1;
|
||||
@@ -406,107 +190,107 @@ static off_t g726_tell(struct ast_filestream *fs)
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||||
return -1;
|
||||
}
|
||||
|
||||
static struct ast_format_lock me = { .usecnt = -1 };
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||||
|
||||
static const struct ast_format f[] = {
|
||||
{
|
||||
.name = "g726-40",
|
||||
.exts = "g726-40",
|
||||
.format = AST_FORMAT_G726,
|
||||
.open = g726_40_open,
|
||||
.rewrite = g726_40_rewrite,
|
||||
.write = g726_write,
|
||||
.seek = g726_seek,
|
||||
.trunc = g726_trunc,
|
||||
.tell = g726_tell,
|
||||
.read = g726_read,
|
||||
.buf_size = BUF_SIZE + AST_FRIENDLY_OFFSET,
|
||||
.desc_size = sizeof(struct g726_desc),
|
||||
.lockp = &me,
|
||||
},
|
||||
{
|
||||
.name = "g726-32",
|
||||
.exts = "g726-32",
|
||||
.format = AST_FORMAT_G726,
|
||||
.open = g726_32_open,
|
||||
.rewrite = g726_32_rewrite,
|
||||
.write = g726_write,
|
||||
.seek = g726_seek,
|
||||
.trunc = g726_trunc,
|
||||
.tell = g726_tell,
|
||||
.read = g726_read,
|
||||
.buf_size = BUF_SIZE + AST_FRIENDLY_OFFSET,
|
||||
.desc_size = sizeof(struct g726_desc),
|
||||
.lockp = &me,
|
||||
},
|
||||
{
|
||||
.name = "g726-24",
|
||||
.exts = "g726-24",
|
||||
.format = AST_FORMAT_G726,
|
||||
.open = g726_24_open,
|
||||
.rewrite = g726_24_rewrite,
|
||||
.write = g726_write,
|
||||
.seek = g726_seek,
|
||||
.trunc = g726_trunc,
|
||||
.tell = g726_tell,
|
||||
.read = g726_read,
|
||||
.buf_size = BUF_SIZE + AST_FRIENDLY_OFFSET,
|
||||
.desc_size = sizeof(struct g726_desc),
|
||||
.lockp = &me,
|
||||
},
|
||||
{
|
||||
.name = "g726-16",
|
||||
.exts = "g726-16",
|
||||
.format = AST_FORMAT_G726,
|
||||
.open = g726_16_open,
|
||||
.rewrite = g726_16_rewrite,
|
||||
.write = g726_write,
|
||||
.seek = g726_seek,
|
||||
.trunc = g726_trunc,
|
||||
.tell = g726_tell,
|
||||
.read = g726_read,
|
||||
.buf_size = BUF_SIZE + AST_FRIENDLY_OFFSET,
|
||||
.desc_size = sizeof(struct g726_desc),
|
||||
.lockp = &me,
|
||||
},
|
||||
{ .format = 0 } /* terminator */
|
||||
};
|
||||
|
||||
/*
|
||||
* Module interface (load_module, unload_module, usecount, description, key)
|
||||
*/
|
||||
int load_module()
|
||||
{
|
||||
int res;
|
||||
int i;
|
||||
|
||||
res = ast_format_register(name40, exts40, AST_FORMAT_G726,
|
||||
g726_40_open,
|
||||
g726_40_rewrite,
|
||||
g726_write,
|
||||
g726_seek,
|
||||
g726_trunc,
|
||||
g726_tell,
|
||||
g726_read,
|
||||
g726_close,
|
||||
g726_getcomment);
|
||||
if (res) {
|
||||
ast_log(LOG_WARNING, "Failed to register format %s.\n", name40);
|
||||
return(-1);
|
||||
for (i = 0; f[i].format ; i++) {
|
||||
if (ast_format_register(&f[i])) { /* errors are fatal */
|
||||
ast_log(LOG_WARNING, "Failed to register format %s.\n", f[i].name);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
res = ast_format_register(name32, exts32, AST_FORMAT_G726,
|
||||
g726_32_open,
|
||||
g726_32_rewrite,
|
||||
g726_write,
|
||||
g726_seek,
|
||||
g726_trunc,
|
||||
g726_tell,
|
||||
g726_read,
|
||||
g726_close,
|
||||
g726_getcomment);
|
||||
if (res) {
|
||||
ast_log(LOG_WARNING, "Failed to register format %s.\n", name32);
|
||||
return(-1);
|
||||
}
|
||||
res = ast_format_register(name24, exts24, AST_FORMAT_G726,
|
||||
g726_24_open,
|
||||
g726_24_rewrite,
|
||||
g726_write,
|
||||
g726_seek,
|
||||
g726_trunc,
|
||||
g726_tell,
|
||||
g726_read,
|
||||
g726_close,
|
||||
g726_getcomment);
|
||||
if (res) {
|
||||
ast_log(LOG_WARNING, "Failed to register format %s.\n", name24);
|
||||
return(-1);
|
||||
}
|
||||
res = ast_format_register(name16, exts16, AST_FORMAT_G726,
|
||||
g726_16_open,
|
||||
g726_16_rewrite,
|
||||
g726_write,
|
||||
g726_seek,
|
||||
g726_trunc,
|
||||
g726_tell,
|
||||
g726_read,
|
||||
g726_close,
|
||||
g726_getcomment);
|
||||
if (res) {
|
||||
ast_log(LOG_WARNING, "Failed to register format %s.\n", name16);
|
||||
return(-1);
|
||||
}
|
||||
return(0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int unload_module()
|
||||
{
|
||||
int res;
|
||||
int i;
|
||||
|
||||
res = ast_format_unregister(name16);
|
||||
if (res) {
|
||||
ast_log(LOG_WARNING, "Failed to unregister format %s.\n", name16);
|
||||
return(-1);
|
||||
}
|
||||
res = ast_format_unregister(name24);
|
||||
if (res) {
|
||||
ast_log(LOG_WARNING, "Failed to unregister format %s.\n", name24);
|
||||
return(-1);
|
||||
}
|
||||
res = ast_format_unregister(name32);
|
||||
if (res) {
|
||||
ast_log(LOG_WARNING, "Failed to unregister format %s.\n", name32);
|
||||
return(-1);
|
||||
}
|
||||
res = ast_format_unregister(name40);
|
||||
if (res) {
|
||||
ast_log(LOG_WARNING, "Failed to unregister format %s.\n", name40);
|
||||
return(-1);
|
||||
for (i = 0; f[i].format ; i++) {
|
||||
if (ast_format_unregister(f[i].name))
|
||||
ast_log(LOG_WARNING, "Failed to unregister format %s.\n", f[i].name);
|
||||
}
|
||||
return(0);
|
||||
}
|
||||
|
||||
int usecount()
|
||||
{
|
||||
return glistcnt;
|
||||
return me.usecnt;
|
||||
}
|
||||
|
||||
char *description()
|
||||
{
|
||||
return desc;
|
||||
return "Raw G.726 (16/24/32/40kbps) data";
|
||||
}
|
||||
|
||||
char *key()
|
||||
|
||||
Reference in New Issue
Block a user