Merge commit '90558e848a29ef1e85ecb1832ad9a26eebe958e0'

[ffmpeg] / libavresample / avresample.h

diff --git a/libavresample/avresample.h b/libavresample/avresample.h
index 7350805e41773281962326d9fbc2d124f90c921b..ea93952e2eeed97acf78c145790d5d444acabebe 100644 (file)
--- a/libavresample/avresample.h
+++ b/libavresample/avresample.h
@@ -45,6 +45,13 @@ enum AVMixCoeffType {
     AV_MIX_COEFF_TYPE_NB,   /** Number of coeff types. Not part of ABI      */
 };
 
+/** Resampling Filter Types */
+enum AVResampleFilterType {
+    AV_RESAMPLE_FILTER_TYPE_CUBIC,              /**< Cubic */
+    AV_RESAMPLE_FILTER_TYPE_BLACKMAN_NUTTALL,   /**< Blackman Nuttall Windowed Sinc */
+    AV_RESAMPLE_FILTER_TYPE_KAISER,             /**< Kaiser Windowed Sinc */
+};
+
 /**
  * Return the LIBAVRESAMPLE_VERSION_INT constant.
  */
@@ -131,12 +138,13 @@ void avresample_free(AVAudioResampleContext **avr);
  *                            the weight of input channel i in output channel o.
  * @param stride              distance between adjacent input channels in the
  *                            matrix array
+ * @param matrix_encoding     matrixed stereo downmix mode (e.g. dplii)
  * @return                    0 on success, negative AVERROR code on failure
  */
 int avresample_build_matrix(uint64_t in_layout, uint64_t out_layout,
                             double center_mix_level, double surround_mix_level,
                             double lfe_mix_level, int normalize, double *matrix,
-                            int stride);
+                            int stride, enum AVMatrixEncoding matrix_encoding);
 
 /**
  * Get the current channel mixing matrix.
@@ -226,8 +234,8 @@ int avresample_set_compensation(AVAudioResampleContext *avr, int sample_delta,
  *                        not including converted samples added to the internal
  *                        output FIFO
  */
-int avresample_convert(AVAudioResampleContext *avr, void **output,
-                       int out_plane_size, int out_samples, void **input,
+int avresample_convert(AVAudioResampleContext *avr, uint8_t **output,
+                       int out_plane_size, int out_samples, uint8_t **input,
                        int in_plane_size, int in_samples);
 
 /**
@@ -274,10 +282,11 @@ int avresample_available(AVAudioResampleContext *avr);
  * @see avresample_convert()
  *
  * @param avr         audio resample context
- * @param output      output data pointers
+ * @param output      output data pointers. May be NULL, in which case
+ *                    nb_samples of data is discarded from output FIFO.
  * @param nb_samples  number of samples to read from the FIFO
  * @return            the number of samples written to output
  */
-int avresample_read(AVAudioResampleContext *avr, void **output, int nb_samples);
+int avresample_read(AVAudioResampleContext *avr, uint8_t **output, int nb_samples);
 
 #endif /* AVRESAMPLE_AVRESAMPLE_H */