samplefmt.h
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18 
19 #ifndef AVUTIL_SAMPLEFMT_H
20 #define AVUTIL_SAMPLEFMT_H
21 
22 #include <stdint.h>
23 
24 #include "avutil.h"
25 #include "attributes.h"
26 
56 
62 
64 };
65 
71 
76 enum AVSampleFormat av_get_sample_fmt(const char *name);
77 
88 
99 
112 char *av_get_sample_fmt_string(char *buf, int buf_size, enum AVSampleFormat sample_fmt);
113 
122 
130 
141 int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples,
142  enum AVSampleFormat sample_fmt, int align);
143 
168 int av_samples_fill_arrays(uint8_t **audio_data, int *linesize,
169  const uint8_t *buf,
170  int nb_channels, int nb_samples,
171  enum AVSampleFormat sample_fmt, int align);
172 
190 int av_samples_alloc(uint8_t **audio_data, int *linesize, int nb_channels,
191  int nb_samples, enum AVSampleFormat sample_fmt, int align);
192 
204 int av_samples_copy(uint8_t **dst, uint8_t * const *src, int dst_offset,
205  int src_offset, int nb_samples, int nb_channels,
207 
217 int av_samples_set_silence(uint8_t **audio_data, int offset, int nb_samples,
219 
220 #endif /* AVUTIL_SAMPLEFMT_H */
Number of sample formats. DO NOT USE if linking dynamically.
Definition: samplefmt.h:63
external API header
signed 16 bits
Definition: samplefmt.h:52
Macro definitions for various function/variable attributes.
int av_get_bytes_per_sample(enum AVSampleFormat sample_fmt)
Return number of bytes per sample.
Definition: samplefmt.c:95
uint8_t
enum AVSampleFormat av_get_planar_sample_fmt(enum AVSampleFormat sample_fmt)
Get the planar alternative form of the given sample format.
Definition: samplefmt.c:73
const char * name
signed 32 bits, planar
Definition: samplefmt.h:59
float, planar
Definition: samplefmt.h:60
signed 32 bits
Definition: samplefmt.h:53
sample_fmt
Definition: avconv_filter.c:63
int av_samples_get_buffer_size(int *linesize, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
Get the required buffer size for the given audio parameters.
Definition: samplefmt.c:108
int av_sample_fmt_is_planar(enum AVSampleFormat sample_fmt)
Check if the sample format is planar.
Definition: samplefmt.c:101
out nb_samples
int av_samples_alloc(uint8_t **audio_data, int *linesize, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
Allocate a samples buffer for nb_samples samples, and fill data pointers and linesize accordingly...
Definition: samplefmt.c:162
int av_samples_copy(uint8_t **dst, uint8_t *const *src, int dst_offset, int src_offset, int nb_samples, int nb_channels, enum AVSampleFormat sample_fmt)
Copy samples from src to dst.
Definition: samplefmt.c:187
const char * av_get_sample_fmt_name(enum AVSampleFormat sample_fmt)
Return the name of sample_fmt, or NULL if sample_fmt is not recognized.
Definition: samplefmt.c:47
AVSampleFormat
Audio Sample Formats.
Definition: samplefmt.h:49
enum AVSampleFormat av_get_sample_fmt(const char *name)
Return a sample format corresponding to name, or AV_SAMPLE_FMT_NONE on error.
Definition: samplefmt.c:54
unsigned 8 bits
Definition: samplefmt.h:51
unsigned 8 bits, planar
Definition: samplefmt.h:57
char * av_get_sample_fmt_string(char *buf, int buf_size, enum AVSampleFormat sample_fmt)
Generate a string corresponding to the sample format with sample_fmt, or a header if sample_fmt is ne...
Definition: samplefmt.c:82
signed 16 bits, planar
Definition: samplefmt.h:58
int av_samples_set_silence(uint8_t **audio_data, int offset, int nb_samples, int nb_channels, enum AVSampleFormat sample_fmt)
Fill an audio buffer with silence.
Definition: samplefmt.c:206
int nb_channels
enum AVSampleFormat av_get_packed_sample_fmt(enum AVSampleFormat sample_fmt)
Get the packed alternative form of the given sample format.
Definition: samplefmt.c:64
double, planar
Definition: samplefmt.h:61
int av_samples_fill_arrays(uint8_t **audio_data, int *linesize, const uint8_t *buf, int nb_channels, int nb_samples, enum AVSampleFormat sample_fmt, int align)
Fill channel data pointers and linesize for samples with sample format sample_fmt.
Definition: samplefmt.c:140