cosmetics: Remove unnecessary extern keywords from function declarations

3 files changed, 166 insertions, 167 deletions

diff --git a/libavresample/x86/audio_convert_init.c b/libavresample/x86/audio_convert_init.c
index 879108dff1..21104458d3 100644
--- a/libavresample/x86/audio_convert_init.c
+++ b/libavresample/x86/audio_convert_init.c
@@ -25,123 +25,123 @@
 
 /* flat conversions */
 
-extern void ff_conv_s16_to_s32_sse2(int16_t *dst, const int32_t *src, int len);
+void ff_conv_s16_to_s32_sse2(int16_t *dst, const int32_t *src, int len);
 
-extern void ff_conv_s16_to_flt_sse2(float *dst, const int16_t *src, int len);
-extern void ff_conv_s16_to_flt_sse4(float *dst, const int16_t *src, int len);
+void ff_conv_s16_to_flt_sse2(float *dst, const int16_t *src, int len);
+void ff_conv_s16_to_flt_sse4(float *dst, const int16_t *src, int len);
 
-extern void ff_conv_s32_to_s16_mmx (int16_t *dst, const int32_t *src, int len);
-extern void ff_conv_s32_to_s16_sse2(int16_t *dst, const int32_t *src, int len);
+void ff_conv_s32_to_s16_mmx (int16_t *dst, const int32_t *src, int len);
+void ff_conv_s32_to_s16_sse2(int16_t *dst, const int32_t *src, int len);
 
-extern void ff_conv_s32_to_flt_sse2(float *dst, const int32_t *src, int len);
-extern void ff_conv_s32_to_flt_avx (float *dst, const int32_t *src, int len);
+void ff_conv_s32_to_flt_sse2(float *dst, const int32_t *src, int len);
+void ff_conv_s32_to_flt_avx (float *dst, const int32_t *src, int len);
 
-extern void ff_conv_flt_to_s16_sse2(int16_t *dst, const float *src, int len);
+void ff_conv_flt_to_s16_sse2(int16_t *dst, const float *src, int len);
 
-extern void ff_conv_flt_to_s32_sse2(int32_t *dst, const float *src, int len);
-extern void ff_conv_flt_to_s32_avx (int32_t *dst, const float *src, int len);
+void ff_conv_flt_to_s32_sse2(int32_t *dst, const float *src, int len);
+void ff_conv_flt_to_s32_avx (int32_t *dst, const float *src, int len);
 
 /* interleave conversions */
 
-extern void ff_conv_s16p_to_s16_2ch_sse2(int16_t *dst, int16_t *const *src,
-                                         int len, int channels);
-extern void ff_conv_s16p_to_s16_2ch_avx (int16_t *dst, int16_t *const *src,
-                                         int len, int channels);
+void ff_conv_s16p_to_s16_2ch_sse2(int16_t *dst, int16_t *const *src,
+                                  int len, int channels);
+void ff_conv_s16p_to_s16_2ch_avx (int16_t *dst, int16_t *const *src,
+                                  int len, int channels);
 
-extern void ff_conv_s16p_to_s16_6ch_sse2(int16_t *dst, int16_t *const *src,
-                                         int len, int channels);
-extern void ff_conv_s16p_to_s16_6ch_sse2slow(int16_t *dst, int16_t *const *src,
-                                             int len, int channels);
-extern void ff_conv_s16p_to_s16_6ch_avx (int16_t *dst, int16_t *const *src,
-                                         int len, int channels);
+void ff_conv_s16p_to_s16_6ch_sse2(int16_t *dst, int16_t *const *src,
+                                  int len, int channels);
+void ff_conv_s16p_to_s16_6ch_sse2slow(int16_t *dst, int16_t *const *src,
+                                      int len, int channels);
+void ff_conv_s16p_to_s16_6ch_avx (int16_t *dst, int16_t *const *src,
+                                  int len, int channels);
 
-extern void ff_conv_s16p_to_flt_2ch_sse2(float *dst, int16_t *const *src,
-                                         int len, int channels);
-extern void ff_conv_s16p_to_flt_2ch_avx (float *dst, int16_t *const *src,
-                                         int len, int channels);
+void ff_conv_s16p_to_flt_2ch_sse2(float *dst, int16_t *const *src,
+                                  int len, int channels);
+void ff_conv_s16p_to_flt_2ch_avx (float *dst, int16_t *const *src,
+                                  int len, int channels);
 
-extern void ff_conv_s16p_to_flt_6ch_sse2 (float *dst, int16_t *const *src,
-                                          int len, int channels);
-extern void ff_conv_s16p_to_flt_6ch_ssse3(float *dst, int16_t *const *src,
-                                         int len, int channels);
-extern void ff_conv_s16p_to_flt_6ch_avx  (float *dst, int16_t *const *src,
-                                          int len, int channels);
+void ff_conv_s16p_to_flt_6ch_sse2 (float *dst, int16_t *const *src,
+                                   int len, int channels);
+void ff_conv_s16p_to_flt_6ch_ssse3(float *dst, int16_t *const *src,
+                                  int len, int channels);
+void ff_conv_s16p_to_flt_6ch_avx  (float *dst, int16_t *const *src,
+                                   int len, int channels);
 
-extern void ff_conv_fltp_to_s16_2ch_sse2 (int16_t *dst, float *const *src,
-                                          int len, int channels);
-extern void ff_conv_fltp_to_s16_2ch_ssse3(int16_t *dst, float *const *src,
-                                          int len, int channels);
+void ff_conv_fltp_to_s16_2ch_sse2 (int16_t *dst, float *const *src,
+                                   int len, int channels);
+void ff_conv_fltp_to_s16_2ch_ssse3(int16_t *dst, float *const *src,
+                                   int len, int channels);
 
-extern void ff_conv_fltp_to_s16_6ch_sse (int16_t *dst, float *const *src,
-                                         int len, int channels);
-extern void ff_conv_fltp_to_s16_6ch_sse2(int16_t *dst, float *const *src,
-                                         int len, int channels);
-extern void ff_conv_fltp_to_s16_6ch_avx (int16_t *dst, float *const *src,
-                                         int len, int channels);
+void ff_conv_fltp_to_s16_6ch_sse (int16_t *dst, float *const *src,
+                                  int len, int channels);
+void ff_conv_fltp_to_s16_6ch_sse2(int16_t *dst, float *const *src,
+                                  int len, int channels);
+void ff_conv_fltp_to_s16_6ch_avx (int16_t *dst, float *const *src,
+                                  int len, int channels);
 
-extern void ff_conv_fltp_to_flt_2ch_sse(float *dst, float *const *src, int len,
-                                        int channels);
-extern void ff_conv_fltp_to_flt_2ch_avx(float *dst, float *const *src, int len,
-                                        int channels);
+void ff_conv_fltp_to_flt_2ch_sse(float *dst, float *const *src, int len,
+                                 int channels);
+void ff_conv_fltp_to_flt_2ch_avx(float *dst, float *const *src, int len,
+                                 int channels);
 
-extern void ff_conv_fltp_to_flt_6ch_mmx (float *dst, float *const *src, int len,
-                                         int channels);
-extern void ff_conv_fltp_to_flt_6ch_sse4(float *dst, float *const *src, int len,
-                                         int channels);
-extern void ff_conv_fltp_to_flt_6ch_avx (float *dst, float *const *src, int len,
-                                         int channels);
+void ff_conv_fltp_to_flt_6ch_mmx (float *dst, float *const *src, int len,
+                                  int channels);
+void ff_conv_fltp_to_flt_6ch_sse4(float *dst, float *const *src, int len,
+                                  int channels);
+void ff_conv_fltp_to_flt_6ch_avx (float *dst, float *const *src, int len,
+                                  int channels);
 
 /* deinterleave conversions */
 
-extern void ff_conv_s16_to_s16p_2ch_sse2(int16_t *const *dst, int16_t *src,
-                                         int len, int channels);
-extern void ff_conv_s16_to_s16p_2ch_ssse3(int16_t *const *dst, int16_t *src,
-                                          int len, int channels);
-extern void ff_conv_s16_to_s16p_2ch_avx (int16_t *const *dst, int16_t *src,
-                                         int len, int channels);
+void ff_conv_s16_to_s16p_2ch_sse2(int16_t *const *dst, int16_t *src,
+                                  int len, int channels);
+void ff_conv_s16_to_s16p_2ch_ssse3(int16_t *const *dst, int16_t *src,
+                                   int len, int channels);
+void ff_conv_s16_to_s16p_2ch_avx (int16_t *const *dst, int16_t *src,
+                                  int len, int channels);
 
-extern void ff_conv_s16_to_s16p_6ch_sse2 (int16_t *const *dst, int16_t *src,
-                                          int len, int channels);
-extern void ff_conv_s16_to_s16p_6ch_ssse3(int16_t *const *dst, int16_t *src,
-                                          int len, int channels);
-extern void ff_conv_s16_to_s16p_6ch_avx  (int16_t *const *dst, int16_t *src,
-                                          int len, int channels);
+void ff_conv_s16_to_s16p_6ch_sse2 (int16_t *const *dst, int16_t *src,
+                                   int len, int channels);
+void ff_conv_s16_to_s16p_6ch_ssse3(int16_t *const *dst, int16_t *src,
+                                   int len, int channels);
+void ff_conv_s16_to_s16p_6ch_avx  (int16_t *const *dst, int16_t *src,
+                                   int len, int channels);
 
-extern void ff_conv_s16_to_fltp_2ch_sse2(float *const *dst, int16_t *src,
-                                         int len, int channels);
-extern void ff_conv_s16_to_fltp_2ch_avx (float *const *dst, int16_t *src,
-                                         int len, int channels);
+void ff_conv_s16_to_fltp_2ch_sse2(float *const *dst, int16_t *src,
+                                  int len, int channels);
+void ff_conv_s16_to_fltp_2ch_avx (float *const *dst, int16_t *src,
+                                  int len, int channels);
 
-extern void ff_conv_s16_to_fltp_6ch_sse2 (float *const *dst, int16_t *src,
-                                          int len, int channels);
-extern void ff_conv_s16_to_fltp_6ch_ssse3(float *const *dst, int16_t *src,
-                                          int len, int channels);
-extern void ff_conv_s16_to_fltp_6ch_sse4 (float *const *dst, int16_t *src,
-                                          int len, int channels);
-extern void ff_conv_s16_to_fltp_6ch_avx  (float *const *dst, int16_t *src,
-                                          int len, int channels);
+void ff_conv_s16_to_fltp_6ch_sse2 (float *const *dst, int16_t *src,
+                                   int len, int channels);
+void ff_conv_s16_to_fltp_6ch_ssse3(float *const *dst, int16_t *src,
+                                   int len, int channels);
+void ff_conv_s16_to_fltp_6ch_sse4 (float *const *dst, int16_t *src,
+                                   int len, int channels);
+void ff_conv_s16_to_fltp_6ch_avx  (float *const *dst, int16_t *src,
+                                   int len, int channels);
 
-extern void ff_conv_flt_to_s16p_2ch_sse2(int16_t *const *dst, float *src,
-                                         int len, int channels);
-extern void ff_conv_flt_to_s16p_2ch_avx (int16_t *const *dst, float *src,
-                                         int len, int channels);
+void ff_conv_flt_to_s16p_2ch_sse2(int16_t *const *dst, float *src,
+                                  int len, int channels);
+void ff_conv_flt_to_s16p_2ch_avx (int16_t *const *dst, float *src,
+                                  int len, int channels);
 
-extern void ff_conv_flt_to_s16p_6ch_sse2 (int16_t *const *dst, float *src,
-                                          int len, int channels);
-extern void ff_conv_flt_to_s16p_6ch_ssse3(int16_t *const *dst, float *src,
-                                          int len, int channels);
-extern void ff_conv_flt_to_s16p_6ch_avx  (int16_t *const *dst, float *src,
-                                          int len, int channels);
+void ff_conv_flt_to_s16p_6ch_sse2 (int16_t *const *dst, float *src,
+                                   int len, int channels);
+void ff_conv_flt_to_s16p_6ch_ssse3(int16_t *const *dst, float *src,
+                                   int len, int channels);
+void ff_conv_flt_to_s16p_6ch_avx  (int16_t *const *dst, float *src,
+                                   int len, int channels);
 
-extern void ff_conv_flt_to_fltp_2ch_sse(float *const *dst, float *src, int len,
-                                        int channels);
-extern void ff_conv_flt_to_fltp_2ch_avx(float *const *dst, float *src, int len,
-                                        int channels);
+void ff_conv_flt_to_fltp_2ch_sse(float *const *dst, float *src, int len,
+                                 int channels);
+void ff_conv_flt_to_fltp_2ch_avx(float *const *dst, float *src, int len,
+                                 int channels);
 
-extern void ff_conv_flt_to_fltp_6ch_sse2(float *const *dst, float *src, int len,
-                                         int channels);
-extern void ff_conv_flt_to_fltp_6ch_avx (float *const *dst, float *src, int len,
-                                         int channels);
+void ff_conv_flt_to_fltp_6ch_sse2(float *const *dst, float *src, int len,
+                                  int channels);
+void ff_conv_flt_to_fltp_6ch_avx (float *const *dst, float *src, int len,
+                                  int channels);
 
 av_cold void ff_audio_convert_init_x86(AudioConvert *ac)
 {
diff --git a/libavresample/x86/audio_mix_init.c b/libavresample/x86/audio_mix_init.c
index 72b2397ad6..9b977f892d 100644
--- a/libavresample/x86/audio_mix_init.c
+++ b/libavresample/x86/audio_mix_init.c
@@ -23,80 +23,80 @@
 #include "libavutil/x86/cpu.h"
 #include "libavresample/audio_mix.h"
 
-extern void ff_mix_2_to_1_fltp_flt_sse(float **src, float **matrix, int len,
-                                       int out_ch, int in_ch);
-extern void ff_mix_2_to_1_fltp_flt_avx(float **src, float **matrix, int len,
-                                       int out_ch, int in_ch);
+void ff_mix_2_to_1_fltp_flt_sse(float **src, float **matrix, int len,
+                                int out_ch, int in_ch);
+void ff_mix_2_to_1_fltp_flt_avx(float **src, float **matrix, int len,
+                                int out_ch, int in_ch);
 
-extern void ff_mix_2_to_1_s16p_flt_sse2(int16_t **src, float **matrix, int len,
-                                        int out_ch, int in_ch);
-extern void ff_mix_2_to_1_s16p_flt_sse4(int16_t **src, float **matrix, int len,
-                                        int out_ch, int in_ch);
+void ff_mix_2_to_1_s16p_flt_sse2(int16_t **src, float **matrix, int len,
+                                 int out_ch, int in_ch);
+void ff_mix_2_to_1_s16p_flt_sse4(int16_t **src, float **matrix, int len,
+                                 int out_ch, int in_ch);
 
-extern void ff_mix_2_to_1_s16p_q8_sse2(int16_t **src, int16_t **matrix,
-                                       int len, int out_ch, int in_ch);
+void ff_mix_2_to_1_s16p_q8_sse2(int16_t **src, int16_t **matrix,
+                                int len, int out_ch, int in_ch);
 
-extern void ff_mix_1_to_2_fltp_flt_sse(float **src, float **matrix, int len,
-                                       int out_ch, int in_ch);
-extern void ff_mix_1_to_2_fltp_flt_avx(float **src, float **matrix, int len,
-                                       int out_ch, int in_ch);
+void ff_mix_1_to_2_fltp_flt_sse(float **src, float **matrix, int len,
+                                int out_ch, int in_ch);
+void ff_mix_1_to_2_fltp_flt_avx(float **src, float **matrix, int len,
+                                int out_ch, int in_ch);
 
-extern void ff_mix_1_to_2_s16p_flt_sse2(int16_t **src, float **matrix, int len,
-                                        int out_ch, int in_ch);
-extern void ff_mix_1_to_2_s16p_flt_sse4(int16_t **src, float **matrix, int len,
-                                        int out_ch, int in_ch);
-extern void ff_mix_1_to_2_s16p_flt_avx (int16_t **src, float **matrix, int len,
-                                        int out_ch, int in_ch);
+void ff_mix_1_to_2_s16p_flt_sse2(int16_t **src, float **matrix, int len,
+                                 int out_ch, int in_ch);
+void ff_mix_1_to_2_s16p_flt_sse4(int16_t **src, float **matrix, int len,
+                                 int out_ch, int in_ch);
+void ff_mix_1_to_2_s16p_flt_avx (int16_t **src, float **matrix, int len,
+                                 int out_ch, int in_ch);
 
-#define DEFINE_MIX_3_8_TO_1_2(chan)                                         \
-extern void ff_mix_ ## chan ## _to_1_fltp_flt_sse(float **src,              \
-                                                  float **matrix, int len,  \
-                                                  int out_ch, int in_ch);   \
-extern void ff_mix_ ## chan ## _to_2_fltp_flt_sse(float **src,              \
-                                                  float **matrix, int len,  \
-                                                  int out_ch, int in_ch);   \
-                                                                            \
-extern void ff_mix_ ## chan ## _to_1_s16p_flt_sse2(int16_t **src,           \
-                                                   float **matrix, int len, \
-                                                   int out_ch, int in_ch);  \
-extern void ff_mix_ ## chan ## _to_2_s16p_flt_sse2(int16_t **src,           \
-                                                   float **matrix, int len, \
-                                                   int out_ch, int in_ch);  \
-                                                                            \
-extern void ff_mix_ ## chan ## _to_1_s16p_flt_sse4(int16_t **src,           \
-                                                   float **matrix, int len, \
-                                                   int out_ch, int in_ch);  \
-extern void ff_mix_ ## chan ## _to_2_s16p_flt_sse4(int16_t **src,           \
-                                                   float **matrix, int len, \
-                                                   int out_ch, int in_ch);  \
-                                                                            \
-extern void ff_mix_ ## chan ## _to_1_fltp_flt_avx(float **src,              \
-                                                  float **matrix, int len,  \
-                                                  int out_ch, int in_ch);   \
-extern void ff_mix_ ## chan ## _to_2_fltp_flt_avx(float **src,              \
-                                                  float **matrix, int len,  \
-                                                  int out_ch, int in_ch);   \
-                                                                            \
-extern void ff_mix_ ## chan ## _to_1_s16p_flt_avx(int16_t **src,            \
-                                                  float **matrix, int len,  \
-                                                  int out_ch, int in_ch);   \
-extern void ff_mix_ ## chan ## _to_2_s16p_flt_avx(int16_t **src,            \
-                                                  float **matrix, int len,  \
-                                                  int out_ch, int in_ch);   \
-                                                                            \
-extern void ff_mix_ ## chan ## _to_1_fltp_flt_fma4(float **src,             \
-                                                   float **matrix, int len, \
-                                                   int out_ch, int in_ch);  \
-extern void ff_mix_ ## chan ## _to_2_fltp_flt_fma4(float **src,             \
-                                                   float **matrix, int len, \
-                                                   int out_ch, int in_ch);  \
-                                                                            \
-extern void ff_mix_ ## chan ## _to_1_s16p_flt_fma4(int16_t **src,           \
-                                                   float **matrix, int len, \
-                                                   int out_ch, int in_ch);  \
-extern void ff_mix_ ## chan ## _to_2_s16p_flt_fma4(int16_t **src,           \
-                                                   float **matrix, int len, \
-                                                   int out_ch, int in_ch);
+#define DEFINE_MIX_3_8_TO_1_2(chan)                                     \
+void ff_mix_ ## chan ## _to_1_fltp_flt_sse(float **src,                 \
+                                           float **matrix, int len,     \
+                                           int out_ch, int in_ch);      \
+void ff_mix_ ## chan ## _to_2_fltp_flt_sse(float **src,                 \
+                                           float **matrix, int len,     \
+                                           int out_ch, int in_ch);      \
+                                                                        \
+void ff_mix_ ## chan ## _to_1_s16p_flt_sse2(int16_t **src,              \
+                                            float **matrix, int len,    \
+                                            int out_ch, int in_ch);     \
+void ff_mix_ ## chan ## _to_2_s16p_flt_sse2(int16_t **src,              \
+                                            float **matrix, int len,    \
+                                            int out_ch, int in_ch);     \
+                                                                        \
+void ff_mix_ ## chan ## _to_1_s16p_flt_sse4(int16_t **src,              \
+                                            float **matrix, int len,    \
+                                            int out_ch, int in_ch);     \
+void ff_mix_ ## chan ## _to_2_s16p_flt_sse4(int16_t **src,              \
+                                            float **matrix, int len,    \
+                                            int out_ch, int in_ch);     \
+                                                                        \
+void ff_mix_ ## chan ## _to_1_fltp_flt_avx(float **src,                 \
+                                           float **matrix, int len,     \
+                                           int out_ch, int in_ch);      \
+void ff_mix_ ## chan ## _to_2_fltp_flt_avx(float **src,                 \
+                                           float **matrix, int len,     \
+                                           int out_ch, int in_ch);      \
+                                                                        \
+void ff_mix_ ## chan ## _to_1_s16p_flt_avx(int16_t **src,               \
+                                           float **matrix, int len,     \
+                                           int out_ch, int in_ch);      \
+void ff_mix_ ## chan ## _to_2_s16p_flt_avx(int16_t **src,               \
+                                           float **matrix, int len,     \
+                                           int out_ch, int in_ch);      \
+                                                                        \
+void ff_mix_ ## chan ## _to_1_fltp_flt_fma4(float **src,                \
+                                            float **matrix, int len,    \
+                                            int out_ch, int in_ch);     \
+void ff_mix_ ## chan ## _to_2_fltp_flt_fma4(float **src,                \
+                                            float **matrix, int len,    \
+                                            int out_ch, int in_ch);     \
+                                                                        \
+void ff_mix_ ## chan ## _to_1_s16p_flt_fma4(int16_t **src,              \
+                                            float **matrix, int len,    \
+                                            int out_ch, int in_ch);     \
+void ff_mix_ ## chan ## _to_2_s16p_flt_fma4(int16_t **src,              \
+                                            float **matrix, int len,    \
+                                            int out_ch, int in_ch);
 
 DEFINE_MIX_3_8_TO_1_2(3)
 DEFINE_MIX_3_8_TO_1_2(4)
diff --git a/libavresample/x86/dither_init.c b/libavresample/x86/dither_init.c
index de38398891..cc7e4dc13b 100644
--- a/libavresample/x86/dither_init.c
+++ b/libavresample/x86/dither_init.c
@@ -23,14 +23,13 @@
 #include "libavutil/x86/cpu.h"
 #include "libavresample/dither.h"
 
-extern void ff_quantize_sse2(int16_t *dst, const float *src, float *dither,
-                             int len);
+void ff_quantize_sse2(int16_t *dst, const float *src, float *dither, int len);
 
-extern void ff_dither_int_to_float_rectangular_sse2(float *dst, int *src, int len);
-extern void ff_dither_int_to_float_rectangular_avx(float *dst, int *src, int len);
+void ff_dither_int_to_float_rectangular_sse2(float *dst, int *src, int len);
+void ff_dither_int_to_float_rectangular_avx(float *dst, int *src, int len);
 
-extern void ff_dither_int_to_float_triangular_sse2(float *dst, int *src0, int len);
-extern void ff_dither_int_to_float_triangular_avx(float *dst, int *src0, int len);
+void ff_dither_int_to_float_triangular_sse2(float *dst, int *src0, int len);
+void ff_dither_int_to_float_triangular_avx(float *dst, int *src0, int len);
 
 av_cold void ff_dither_init_x86(DitherDSPContext *ddsp,
                                 enum AVResampleDitherMethod method)