Support for writing and reading raw slin files 8khz-192khz.
authorDavid Vossel <dvossel@digium.com>
Fri, 8 Jul 2011 20:23:37 +0000 (20:23 +0000)
committerDavid Vossel <dvossel@digium.com>
Fri, 8 Jul 2011 20:23:37 +0000 (20:23 +0000)
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@327137 65c4cc65-6c06-0410-ace0-fbb531ad65f3

formats/format_sln.c
formats/format_sln16.c [deleted file]

index 0cb2794..91cb458 100644 (file)
 
 /*! \file
  *
- * \brief RAW SLINEAR Format
- * \arg File name extensions: sln, raw
+ * \brief RAW SLINEAR Formats
  * \ingroup formats
  */
+
 #include "asterisk.h"
 
 ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
@@ -30,18 +29,15 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/module.h"
 #include "asterisk/endian.h"
 
-#define BUF_SIZE       320             /* 320 bytes, 160 samples */
-#define        SLIN_SAMPLES    160
-
-static struct ast_frame *slinear_read(struct ast_filestream *s, int *whennext)
+static struct ast_frame *generic_read(struct ast_filestream *s, int *whennext, unsigned int buf_size, enum ast_format_id id)
 {
        int res;
        /* Send a frame from the file to the appropriate channel */
 
        s->fr.frametype = AST_FRAME_VOICE;
-       ast_format_set(&s->fr.subclass.format, AST_FORMAT_SLINEAR, 0);
+       ast_format_set(&s->fr.subclass.format, id, 0);
        s->fr.mallocd = 0;
-       AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, BUF_SIZE);
+       AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, buf_size);
        if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) < 1) {
                if (res)
                        ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno));
@@ -52,14 +48,14 @@ static struct ast_frame *slinear_read(struct ast_filestream *s, int *whennext)
        return &s->fr;
 }
 
-static int slinear_write(struct ast_filestream *fs, struct ast_frame *f)
+static int generic_write(struct ast_filestream *fs, struct ast_frame *f, enum ast_format_id id)
 {
        int res;
        if (f->frametype != AST_FRAME_VOICE) {
                ast_log(LOG_WARNING, "Asked to write non-voice frame!\n");
                return -1;
        }
-       if (f->subclass.format.id != AST_FORMAT_SLINEAR) {
+       if (f->subclass.format.id != id) {
                ast_log(LOG_WARNING, "Asked to write non-slinear frame (%s)!\n", ast_getformatname(&f->subclass.format));
                return -1;
        }
@@ -103,6 +99,8 @@ static off_t slinear_tell(struct ast_filestream *fs)
        return ftello(fs->f) / 2;
 }
 
+static int slinear_write(struct ast_filestream *fs, struct ast_frame *f){return generic_write(fs, f, AST_FORMAT_SLINEAR);}
+static struct ast_frame *slinear_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 320, AST_FORMAT_SLINEAR);}
 static struct ast_format_def slin_f = {
        .name = "sln",
        .exts = "sln|raw",
@@ -111,23 +109,161 @@ static struct ast_format_def slin_f = {
        .trunc = slinear_trunc,
        .tell = slinear_tell,
        .read = slinear_read,
-       .buf_size = BUF_SIZE + AST_FRIENDLY_OFFSET,
+       .buf_size = 320 + AST_FRIENDLY_OFFSET,
+};
+
+static int slinear12_write(struct ast_filestream *fs, struct ast_frame *f){return generic_write(fs, f, AST_FORMAT_SLINEAR12);}
+static struct ast_frame *slinear12_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 480, AST_FORMAT_SLINEAR12);}
+static struct ast_format_def slin12_f = {
+       .name = "sln12",
+       .exts = "sln12",
+       .write = slinear12_write,
+       .seek = slinear_seek,
+       .trunc = slinear_trunc,
+       .tell = slinear_tell,
+       .read = slinear12_read,
+       .buf_size = 480 + AST_FRIENDLY_OFFSET,
+};
+
+static int slinear16_write(struct ast_filestream *fs, struct ast_frame *f){return generic_write(fs, f, AST_FORMAT_SLINEAR16);}
+static struct ast_frame *slinear16_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 640, AST_FORMAT_SLINEAR16);}
+static struct ast_format_def slin16_f = {
+       .name = "sln16",
+       .exts = "sln16",
+       .write = slinear16_write,
+       .seek = slinear_seek,
+       .trunc = slinear_trunc,
+       .tell = slinear_tell,
+       .read = slinear16_read,
+       .buf_size = 640 + AST_FRIENDLY_OFFSET,
+};
+
+static int slinear24_write(struct ast_filestream *fs, struct ast_frame *f){return generic_write(fs, f, AST_FORMAT_SLINEAR24);}
+static struct ast_frame *slinear24_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 960, AST_FORMAT_SLINEAR24);}
+static struct ast_format_def slin24_f = {
+       .name = "sln24",
+       .exts = "sln24",
+       .write = slinear24_write,
+       .seek = slinear_seek,
+       .trunc = slinear_trunc,
+       .tell = slinear_tell,
+       .read = slinear24_read,
+       .buf_size = 960 + AST_FRIENDLY_OFFSET,
+};
+
+static int slinear32_write(struct ast_filestream *fs, struct ast_frame *f){return generic_write(fs, f, AST_FORMAT_SLINEAR32);}
+static struct ast_frame *slinear32_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 1280, AST_FORMAT_SLINEAR32);}
+static struct ast_format_def slin32_f = {
+       .name = "sln32",
+       .exts = "sln32",
+       .write = slinear32_write,
+       .seek = slinear_seek,
+       .trunc = slinear_trunc,
+       .tell = slinear_tell,
+       .read = slinear32_read,
+       .buf_size = 1280 + AST_FRIENDLY_OFFSET,
+};
+
+static int slinear44_write(struct ast_filestream *fs, struct ast_frame *f){return generic_write(fs, f, AST_FORMAT_SLINEAR44);}
+static struct ast_frame *slinear44_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 1764, AST_FORMAT_SLINEAR44);}
+static struct ast_format_def slin44_f = {
+       .name = "sln44",
+       .exts = "sln44",
+       .write = slinear44_write,
+       .seek = slinear_seek,
+       .trunc = slinear_trunc,
+       .tell = slinear_tell,
+       .read = slinear44_read,
+       .buf_size = 1764 + AST_FRIENDLY_OFFSET,
+};
+
+static int slinear48_write(struct ast_filestream *fs, struct ast_frame *f){return generic_write(fs, f, AST_FORMAT_SLINEAR48);}
+static struct ast_frame *slinear48_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 1920, AST_FORMAT_SLINEAR48);}
+static struct ast_format_def slin48_f = {
+       .name = "sln48",
+       .exts = "sln48",
+       .write = slinear48_write,
+       .seek = slinear_seek,
+       .trunc = slinear_trunc,
+       .tell = slinear_tell,
+       .read = slinear48_read,
+       .buf_size = 1920 + AST_FRIENDLY_OFFSET,
+};
+
+static int slinear96_write(struct ast_filestream *fs, struct ast_frame *f){return generic_write(fs, f, AST_FORMAT_SLINEAR96);}
+static struct ast_frame *slinear96_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 3840, AST_FORMAT_SLINEAR96);}
+static struct ast_format_def slin96_f = {
+       .name = "sln96",
+       .exts = "sln96",
+       .write = slinear96_write,
+       .seek = slinear_seek,
+       .trunc = slinear_trunc,
+       .tell = slinear_tell,
+       .read = slinear96_read,
+       .buf_size = 3840 + AST_FRIENDLY_OFFSET,
+};
+
+static int slinear192_write(struct ast_filestream *fs, struct ast_frame *f){return generic_write(fs, f, AST_FORMAT_SLINEAR192);}
+static struct ast_frame *slinear192_read(struct ast_filestream *s, int *whennext){return generic_read(s, whennext, 7680, AST_FORMAT_SLINEAR192);}
+static struct ast_format_def slin192_f = {
+       .name = "sln192",
+       .exts = "sln192",
+       .write = slinear192_write,
+       .seek = slinear_seek,
+       .trunc = slinear_trunc,
+       .tell = slinear_tell,
+       .read = slinear192_read,
+       .buf_size = 7680 + AST_FRIENDLY_OFFSET,
+};
+
+static struct ast_format_def *slin_list[] = {
+       &slin_f,
+       &slin12_f,
+       &slin16_f,
+       &slin24_f,
+       &slin32_f,
+       &slin44_f,
+       &slin48_f,
+       &slin96_f,
+       &slin192_f,
 };
 
 static int load_module(void)
 {
+       int i;
        ast_format_set(&slin_f.format, AST_FORMAT_SLINEAR, 0);
-       if (ast_format_def_register(&slin_f))
-               return AST_MODULE_LOAD_FAILURE;
+       ast_format_set(&slin12_f.format, AST_FORMAT_SLINEAR12, 0);
+       ast_format_set(&slin16_f.format, AST_FORMAT_SLINEAR16, 0);
+       ast_format_set(&slin24_f.format, AST_FORMAT_SLINEAR24, 0);
+       ast_format_set(&slin32_f.format, AST_FORMAT_SLINEAR32, 0);
+       ast_format_set(&slin44_f.format, AST_FORMAT_SLINEAR44, 0);
+       ast_format_set(&slin48_f.format, AST_FORMAT_SLINEAR48, 0);
+       ast_format_set(&slin96_f.format, AST_FORMAT_SLINEAR96, 0);
+       ast_format_set(&slin192_f.format, AST_FORMAT_SLINEAR192, 0);
+
+       for (i = 0; i < ARRAY_LEN(slin_list); i++) {
+               if (ast_format_def_register(slin_list[i])) {
+                       return AST_MODULE_LOAD_FAILURE;
+               }
+       }
+
        return AST_MODULE_LOAD_SUCCESS;
 }
 
 static int unload_module(void)
 {
-       return ast_format_def_unregister(slin_f.name);
+       int res = 0;
+       int i = 0;
+
+       for (i = 0; i < ARRAY_LEN(slin_list); i++) {
+               if (ast_format_def_unregister(slin_list[i]->name)) {
+                       res |= AST_MODULE_LOAD_FAILURE;
+               }
+       }
+       return res;
 }
 
-AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Raw Signed Linear Audio support (SLN)",
+AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Raw Signed Linear Audio support (SLN) 8khz-192khz",
        .load = load_module,
        .unload = unload_module,
        .load_pri = AST_MODPRI_APP_DEPEND
diff --git a/formats/format_sln16.c b/formats/format_sln16.c
deleted file mode 100644 (file)
index cac0196..0000000
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 1999 - 2008, Anthony Minessale and Digium, Inc.
- * Anthony Minessale (anthmct@yahoo.com)
- * Kevin P. Fleming <kpfleming@digium.com>
- *
- * See http://www.asterisk.org for more information about
- * the Asterisk project. Please do not directly contact
- * any of the maintainers of this project for assistance;
- * the project provides a web site, mailing lists and IRC
- * channels for your use.
- *
- * This program is free software, distributed under the terms of
- * the GNU General Public License Version 2. See the LICENSE file
- * at the top of the source tree.
- */
-
-/*! \file
- *
- * \brief RAW SLINEAR 16 Format
- * \arg File name extensions: sln16
- * \ingroup formats
- */
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
-
-#include "asterisk/mod_format.h"
-#include "asterisk/module.h"
-#include "asterisk/endian.h"
-
-#define BUF_SIZE       640             /* 640 bytes, 320 samples */
-#define        SLIN_SAMPLES    320
-
-static struct ast_frame *slinear_read(struct ast_filestream *s, int *whennext)
-{
-       int res;
-       /* Send a frame from the file to the appropriate channel */
-
-       s->fr.frametype = AST_FRAME_VOICE;
-       ast_format_set(&s->fr.subclass.format, AST_FORMAT_SLINEAR16, 0);
-       s->fr.mallocd = 0;
-       AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, BUF_SIZE);
-       if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) < 1) {
-               if (res)
-                       ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno));
-               return NULL;
-       }
-       *whennext = s->fr.samples = res/2;
-       s->fr.datalen = res;
-       return &s->fr;
-}
-
-static int slinear_write(struct ast_filestream *fs, struct ast_frame *f)
-{
-       int res;
-
-       if (f->frametype != AST_FRAME_VOICE) {
-               ast_log(LOG_WARNING, "Asked to write non-voice frame!\n");
-               return -1;
-       }
-       if (f->subclass.format.id != AST_FORMAT_SLINEAR16) {
-               ast_log(LOG_WARNING, "Asked to write non-slinear16 frame (%s)!\n", ast_getformatname(&f->subclass.format));
-               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 slinear_seek(struct ast_filestream *fs, off_t sample_offset, int whence)
-{
-       off_t offset = 0, min = 0, cur, max;
-
-       sample_offset <<= 1;
-
-       cur = ftello(fs->f);
-
-       fseeko(fs->f, 0, SEEK_END);
-
-       max = ftello(fs->f);
-
-       if (whence == SEEK_SET)
-               offset = sample_offset;
-       else if (whence == SEEK_CUR || whence == SEEK_FORCECUR)
-               offset = sample_offset + cur;
-       else if (whence == SEEK_END)
-               offset = max - sample_offset;
-
-       if (whence != SEEK_FORCECUR)
-               offset = (offset > max) ? max : offset;
-
-       /* always protect against seeking past begining. */
-       offset = (offset < min) ? min : offset;
-
-       return fseeko(fs->f, offset, SEEK_SET);
-}
-
-static int slinear_trunc(struct ast_filestream *fs)
-{
-       return ftruncate(fileno(fs->f), ftello(fs->f));
-}
-
-static off_t slinear_tell(struct ast_filestream *fs)
-{
-       return ftello(fs->f) / 2;
-}
-
-static struct ast_format_def slin_f = {
-       .name = "sln16",
-       .exts = "sln16",
-       .write = slinear_write,
-       .seek = slinear_seek,
-       .trunc = slinear_trunc,
-       .tell = slinear_tell,
-       .read = slinear_read,
-       .buf_size = BUF_SIZE + AST_FRIENDLY_OFFSET,
-};
-
-static int load_module(void)
-{
-       ast_format_set(&slin_f.format, AST_FORMAT_SLINEAR16, 0);
-       if (ast_format_def_register(&slin_f))
-               return AST_MODULE_LOAD_FAILURE;
-
-       return AST_MODULE_LOAD_SUCCESS;
-}
-
-static int unload_module(void)
-{
-       return ast_format_def_unregister(slin_f.name);
-}
-
-AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "Raw Signed Linear 16KHz Audio support (SLN16)",
-       .load = load_module,
-       .unload = unload_module,
-       .load_pri = AST_MODPRI_APP_DEPEND
-);