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tests/src/io/test-source_avcodec.c: add hop_size, improve memory check

--- a/tests/src/io/test-source_avcodec.c

+++ b/tests/src/io/test-source_avcodec.c

@@ -12,7 +12,15 @@

   if (argc < 2) {

     err = 2;

     PRINT_ERR("not enough arguments\n");

-    PRINT_MSG("usage: %s <source_path> [samplerate]\n", argv[0]);

+    PRINT_MSG("read a wave file as a mono vector\n");

+    PRINT_MSG("usage: %s <source_path> [samplerate] [hop_size]\n", argv[0]);

+    PRINT_MSG("examples:\n");

+    PRINT_MSG(" - read file.wav at original samplerate\n");

+    PRINT_MSG("       %s file.wav\n", argv[0]);

+    PRINT_MSG(" - read file.wav at 32000Hz\n");

+    PRINT_MSG("       %s file.aif 32000\n", argv[0]);

+    PRINT_MSG(" - read file.wav at original samplerate with 4096 blocks\n");

+    PRINT_MSG("       %s file.wav 0 4096 \n", argv[0]);

     return err;

   }

@@ -21,12 +29,15 @@

   uint_t hop_size = 256;

   uint_t n_frames = 0, read = 0;

   if ( argc == 3 ) samplerate = atoi(argv[2]);

+  if ( argc == 4 ) hop_size = atoi(argv[3]);

   char_t *source_path = argv[1];

-  fvec_t *vec = new_fvec(hop_size);

+

   aubio_source_avcodec_t * s = new_aubio_source_avcodec(source_path, samplerate, hop_size);

   if (!s) { err = 1; goto beach; }

+  fvec_t *vec = new_fvec(hop_size);

+

   if (samplerate == 0 ) samplerate = aubio_source_avcodec_get_samplerate(s);

   do {

@@ -35,9 +46,12 @@

     n_frames += read;

   } while ( read == hop_size );

+  PRINT_MSG("read %d frames at %dHz (%d blocks) from %s\n", n_frames, samplerate,

+    n_frames / hop_size, source_path);

+

+  del_fvec (vec);

   del_aubio_source_avcodec (s);

 beach:

-  del_fvec (vec);

 #else

   err = 3;

   PRINT_ERR("aubio was not compiled with aubio_source_avcodec\n");

-- 

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