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Moved public part of libdax_audioxtr.h to libburn.h

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This commit is contained in:
Thomas Schmitt
2010-07-04 13:13:09 +00:00
parent 0250a2831d
commit c866b6bc35
6 changed files with 120 additions and 10 deletions
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3
cdrskin/cdrskin.c
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@ -363,9 +363,6 @@ or
#include "../libburn/libburn.h"
#ifdef Cdrskin_libburn_has_audioxtR
#include "../libburn/libdax_audioxtr.h"
#endif
#ifdef Cdrskin_libburn_has_cleanup_handleR
#define Cleanup_set_handlers burn_set_signal_handling

2
cdrskin/cdrskin_timestamp.h
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@ -1 +1 @@
#define Cdrskin_timestamP "2010.06.30.112709"
#define Cdrskin_timestamP "2010.07.04.131219"

106
libburn/libburn.h
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@ -2716,7 +2716,7 @@ int burn_msgs_set_severities(char *queue_severity,
"DEBUG", "ALL".
To call with minimum_severity "NEVER" will discard the
whole queue.
@param error_code Will become a unique error code as liste in
@param error_code Will become a unique error code as listed in
libburn/libdax_msgs.h
@param msg_text Must provide at least BURN_MSGS_MESSAGE_LEN bytes.
@param os_errno Will become the eventual errno related to the message
@ -2980,6 +2980,110 @@ int burn_drive_get_drive_role(struct burn_drive *d);
int burn_drive_equals_adr(struct burn_drive *d1, char *adr2, int drive_role2);
/*
Audio track data extraction facility.
*/
/* Maximum size for address paths and fmt_info strings */
#define LIBDAX_AUDIOXTR_STRLEN 4096
/** Extractor object encapsulating intermediate states of extraction.
The clients of libdax_audioxtr shall only allocate pointers to this
struct and get a storage object via libdax_audioxtr_new().
Appropriate initial value for the pointer is NULL.
*/
struct libdax_audioxtr;
/** Open an audio file, check wether suitable, create extractor object.
@param xtr Opaque handle to extractor. Gets attached extractor object.
@param path Address of the audio file to extract. "-" is stdin (but might
be not suitable for all futurely supported formats).
@param flag Bitfield for control purposes (unused yet, submit 0)
@return >0 success
0 unsuitable format
-1 severe error
-2 path not found
@since 0.2.4
*/
int libdax_audioxtr_new(struct libdax_audioxtr **xtr, char *path, int flag);
/** Obtain identification parameters of opened audio source.
@param xtr Opaque handle to extractor
@param fmt Gets pointed to the audio file format id text: ".wav" , ".au"
@param fmt_info Gets pointed to a format info text telling parameters
@param num_channels e.g. 1=mono, 2=stereo, etc
@param sample_rate e.g. 11025, 44100
@param bits_per_sample e.g. 8= 8 bits per sample, 16= 16 bits ...
@param msb_first Byte order of samples: 0=Intel 1=Motorola
@param flag Bitfield for control purposes (unused yet, submit 0)
@return >0 success, <=0 failure
@since 0.2.4
*/
int libdax_audioxtr_get_id(struct libdax_audioxtr *xtr,
char **fmt, char **fmt_info,
int *num_channels, int *sample_rate,
int *bits_per_sample, int *msb_first, int flag);
/** Obtain a prediction about the extracted size based on internal information
of the formatted file.
@param xtr Opaque handle to extractor
@param size Gets filled with the predicted size
@param flag Bitfield for control purposes (unused yet, submit 0)
@return 1 prediction was possible , 0 no prediction could be made
@since 0.2.4
*/
int libdax_audioxtr_get_size(struct libdax_audioxtr *o, off_t *size, int flag);
/** Obtain next buffer full of extracted data in desired format (only raw audio
for now).
@param xtr Opaque handle to extractor
@param buffer Gets filled with extracted data
@param buffer_size Maximum number of bytes to be filled into buffer
@param flag Bitfield for control purposes
bit0= do not stop at predicted end of data
@return >0 number of valid buffer bytes,
0 End of file
-1 operating system reports error
-2 usage error by application
@since 0.2.4
*/
int libdax_audioxtr_read(struct libdax_audioxtr *xtr,
char buffer[], int buffer_size, int flag);
/** Try to obtain a file descriptor which will deliver extracted data
to normal calls of read(2). This may fail because the format is
unsuitable for that, but ".wav" is ok. If this call succeeds the xtr
object will have forgotten its file descriptor and libdax_audioxtr_read()
will return a usage error. One may use *fd after libdax_audioxtr_destroy()
and will have to close it via close(2) when done with it.
@param xtr Opaque handle to extractor
@param fd Eventually returns the file descriptor number
@param flag Bitfield for control purposes
bit0= do not dup(2) and close(2) but hand out original fd
@return 1 success, 0 cannot hand out fd , -1 severe error
@since 0.2.4
*/
int libdax_audioxtr_detach_fd(struct libdax_audioxtr *o, int *fd, int flag);
/** Clean up after extraction and destroy extractor object.
@param xtr Opaque handle to extractor, *xtr is allowed to be NULL,
*xtr is set to NULL by this function
@param flag Bitfield for control purposes (unused yet, submit 0)
@return 1 = destroyed object, 0 = was already destroyed
@since 0.2.4
*/
int libdax_audioxtr_destroy(struct libdax_audioxtr **xtr, int flag);
#ifndef DOXYGEN
BURN_END_DECLS

3
libburn/libdax_audioxtr.c
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@ -25,7 +25,8 @@ extern struct libdax_msgs *libdax_messenger;
/* Only this single source module is entitled to do this */
#define LIBDAX_AUDIOXTR_H_INTERNAL 1
/* All clients of the extraction facility must do this */
/* All clients of the extraction facility must do this or include libburn.h */
#define LIBDAX_AUDIOXTR_H_PUBLIC 1
#include "libdax_audioxtr.h"

7
libburn/libdax_audioxtr.h
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@ -7,6 +7,12 @@
#ifndef LIBDAX_AUDIOXTR_H_INCLUDED
#define LIBDAX_AUDIOXTR_H_INCLUDED 1
/* Normally this public API is defined in <libburn/libburn.h>
This macro enables the definition for programs which only include this file.
*/
#ifdef LIBDAX_AUDIOXTR_H_PUBLIC
/* Public Macros */
/* Maximum size for address paths and fmt_info strings */
@ -110,6 +116,7 @@ int libdax_audioxtr_detach_fd(struct libdax_audioxtr *o, int *fd, int flag);
*/
int libdax_audioxtr_destroy(struct libdax_audioxtr **xtr, int flag);
#endif /* LIBDAX_AUDIOXTR_H_PUBLIC */
#ifdef LIDBAX_AUDIOXTR________________

9
test/dewav.c
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@ -25,18 +25,19 @@
#include "../libburn/libdax_msgs.h"
struct libdax_msgs *libdax_messenger= NULL;
/* The API for .wav extraction */
#define LIBDAX_AUDIOXTR_H_PUBLIC 1
#include "../libburn/libdax_audioxtr.h"
#else /* Dewav_without_libburN */
/* This build environment uses libdax_msgs via libburn */
/* This build environment uses libdax_msgs and libdax_audioxtr via libburn */
/* Thus the API header of libburn */
#include "../libburn/libburn.h"
#endif /* ! Dewav_without_libburN */
/* The API for .wav extraction */
#include "../libburn/libdax_audioxtr.h"
int main(int argc, char **argv)
{