X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fapiexample.c;h=151637bd21d7cd43d4125779ed80fd800befcec1;hb=7ca6cc099c7e11413c4e95ca10cc2edbfe1052fd;hp=7fe1c119d40b541bc264ed9f228313d736fa1c27;hpb=115329f16062074e11ccf3b89ead6176606c9696;p=ffmpeg

diff --git a/libavcodec/apiexample.c b/libavcodec/apiexample.c
index 7fe1c119d40..151637bd21d 100644
--- a/libavcodec/apiexample.c
+++ b/libavcodec/apiexample.c
@@ -1,3 +1,23 @@
+/*
+ * copyright (c) 2001 Fabrice Bellard
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
 /**
  * @file apiexample.c
  * avcodec API use example.
@@ -12,6 +32,8 @@
 #include <string.h>
 #include <math.h>
 
+#define PI 3.14159265358979323846
+
 #ifdef HAVE_AV_CONFIG_H
 #undef HAVE_AV_CONFIG_H
 #endif
@@ -69,7 +91,7 @@ void audio_encode_example(const char *filename)
 
     /* encode a single tone sound */
     t = 0;
-    tincr = 2 * M_PI * 440.0 / c->sample_rate;
+    tincr = 2 * PI * 440.0 / c->sample_rate;
     for(i=0;i<200;i++) {
         for(j=0;j<frame_size;j++) {
             samples[2*j] = (int)(sin(t) * 10000);
@@ -102,9 +124,6 @@ void audio_decode_example(const char *outfilename, const char *filename)
 
     printf("Audio decoding\n");
 
-    /* set end of buffer to 0 (this ensures that no overreading happens for damaged mpeg streams) */
-    memset(inbuf + INBUF_SIZE, 0, FF_INPUT_BUFFER_PADDING_SIZE);
-
     /* find the mpeg audio decoder */
     codec = avcodec_find_decoder(CODEC_ID_MP2);
     if (!codec) {
@@ -206,8 +225,6 @@ void video_encode_example(const char *filename)
         exit(1);
     }
 
-    /* the codec gives us the frame size, in samples */
-
     f = fopen(filename, "wb");
     if (!f) {
         fprintf(stderr, "could not open %s\n", filename);