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swresample: add swr_is_initialized()

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Idea-from/based-on: 7e86c27b4e
Reviewed-by: ubitux
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-02-22 22:28:24 +01:00
parent 313a6c65b7
commit a66be60888
4 changed files with 16 additions and 2 deletions
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3
doc/APIchanges
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@ -15,6 +15,9 @@ libavutil: 2012-10-22
API changes, most recent first:
2014-02-xx - xxxxxxx - lswr 0.18.100 - swresample.h
Add swr_is_initialized() for checking whether a resample context is initialized.
2014-02-xx - xxxxxxx - lavr 1.2.0 - avresample.h
Add avresample_is_open() for checking whether a resample context is open.

4
libswresample/swresample.c
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@ -733,6 +733,10 @@ static int swr_convert_internal(struct SwrContext *s, AudioData *out, int out_co
return out_count;
}
int swr_is_initialized(struct SwrContext *s) {
return !!s->in_buffer.ch_count;
}
int swr_convert(struct SwrContext *s, uint8_t *out_arg[SWR_CH_MAX], int out_count,
const uint8_t *in_arg [SWR_CH_MAX], int in_count){
AudioData * in= &s->in;

7
libswresample/swresample.h
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@ -165,6 +165,13 @@ struct SwrContext *swr_alloc(void);
*/
int swr_init(struct SwrContext *s);
/**
* Check whether an swr context has been initialized or not.
*
* @return positive if it has been initialized, 0 if not initialized
*/
int swr_is_initialized(struct SwrContext *s);
/**
* Allocate SwrContext if needed and set/reset common parameters.
*

4
libswresample/version.h
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@ -29,8 +29,8 @@
#include "libavutil/avutil.h"
#define LIBSWRESAMPLE_VERSION_MAJOR 0
#define LIBSWRESAMPLE_VERSION_MINOR 17
#define LIBSWRESAMPLE_VERSION_MICRO 104
#define LIBSWRESAMPLE_VERSION_MINOR 18
#define LIBSWRESAMPLE_VERSION_MICRO 100
#define LIBSWRESAMPLE_VERSION_INT AV_VERSION_INT(LIBSWRESAMPLE_VERSION_MAJOR, \
LIBSWRESAMPLE_VERSION_MINOR, \