#include "libavutil/opt.h"
#include "libavutil/samplefmt.h"
#include "avresample.h"
-#include "audio_convert.h"
-#include "audio_data.h"
-#include "audio_mix.h"
-#include "resample.h"
+
+typedef struct AudioData AudioData;
+typedef struct AudioConvert AudioConvert;
+typedef struct AudioMix AudioMix;
+typedef struct ResampleContext ResampleContext;
+
+enum RemapPoint {
+ REMAP_NONE,
+ REMAP_IN_COPY,
+ REMAP_IN_CONVERT,
+ REMAP_OUT_COPY,
+ REMAP_OUT_CONVERT,
+};
+
+typedef struct ChannelMapInfo {
+ int channel_map[AVRESAMPLE_MAX_CHANNELS]; /**< source index of each output channel, -1 if not remapped */
+ int do_remap; /**< remap needed */
+ int channel_copy[AVRESAMPLE_MAX_CHANNELS]; /**< dest index to copy from */
+ int do_copy; /**< copy needed */
+ int channel_zero[AVRESAMPLE_MAX_CHANNELS]; /**< dest index to zero */
+ int do_zero; /**< zeroing needed */
+ int input_map[AVRESAMPLE_MAX_CHANNELS]; /**< dest index of each input channel */
+} ChannelMapInfo;
struct AVAudioResampleContext {
const AVClass *av_class; /**< AVClass for logging and AVOptions */
double cutoff; /**< resampling cutoff frequency. 1.0 corresponds to half the output sample rate */
enum AVResampleFilterType filter_type; /**< resampling filter type */
int kaiser_beta; /**< beta value for Kaiser window (only applicable if filter_type == AV_FILTER_TYPE_KAISER) */
+ enum AVResampleDitherMethod dither_method; /**< dither method */
int in_channels; /**< number of input channels */
int out_channels; /**< number of output channels */
int resample_needed; /**< resampling is needed */
int in_convert_needed; /**< input sample format conversion is needed */
int out_convert_needed; /**< output sample format conversion is needed */
+ int in_copy_needed; /**< input data copy is needed */
AudioData *in_buffer; /**< buffer for converted input */
AudioData *resample_out_buffer; /**< buffer for output from resampler */
* only used if avresample_set_matrix() is called before avresample_open()
*/
double *mix_matrix;
+
+ int use_channel_map;
+ enum RemapPoint remap_point;
+ ChannelMapInfo ch_map_info;
};
#endif /* AVRESAMPLE_INTERNAL_H */