Merge /fml/ag-raetsch/home/maan/scm/paraslash_meins/paraslash

[paraslash.git] / mp3dec.c

diff --git a/mp3dec.c b/mp3dec.c
index dd7887d51f830409289f389ffa4bd5fd9f897717..335c2baaea66f2ac6b9392b177958101fc36b0e2 100644 (file)
--- a/mp3dec.c
+++ b/mp3dec.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005-2006 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2007 Andre Noll <maan@systemlinux.org>
  *
  *     This program is free software; you can redistribute it and/or modify
  *     it under the terms of the GNU General Public License as published by
@@ -30,7 +30,7 @@
 #define MP3_OUTBUF_SIZE 128 * 1024
 
 /** \cond a helper macro */
-#define MAD_TO_SHORT(f) (f) >= MAD_F_ONE?  SHRT_MAX :\
+#define MAD_TO_SHORT(f) (f) >= MAD_F_ONE? SHRT_MAX :\
        (f) <= -MAD_F_ONE? -SHRT_MAX : (signed short) ((f) >> (MAD_F_FRACBITS - 15))
 /** \endcond */
 
@@ -48,8 +48,6 @@ struct private_mp3dec_data {
        struct mad_synth synth;
 };
 
-/* TODO: Convert all input if possible */
-#define FRAME_HEADER_SIZE 4
 static ssize_t mp3dec(char *inbuffer, size_t len, struct filter_node *fn)
 {
        int i, ret;
@@ -62,11 +60,8 @@ static ssize_t mp3dec(char *inbuffer, size_t len, struct filter_node *fn)
        pmd->stream.error = 0;
 next_frame:
        ret = mad_header_decode(&pmd->frame.header, &pmd->stream);
-       if (ret < 0) {
-               if (!MAD_RECOVERABLE(pmd->stream.error))
-                       goto out;
-               return FRAME_HEADER_SIZE;
-       }
+       if (ret < 0)
+               goto out;
        fn->fc->samplerate = pmd->frame.header.samplerate;
        fn->fc->channels = MAD_NCHANNELS(&pmd->frame.header);
        ret = mad_frame_decode(&pmd->frame, &pmd->stream);
@@ -79,14 +74,13 @@ next_frame:
        mad_synth_frame(&pmd->synth, &pmd->frame);
 
        for (i = 0; i < pmd->synth.pcm.length; i++) {
-               /* output format: unsigned 16 bit little endian */
-               signed short s = MAD_TO_SHORT(pmd->synth.pcm.samples[0][i]);
-               fn->buf[fn->loaded++] = s & 0xff;
-               fn->buf[fn->loaded++] = s >> 8;
+               int s = MAD_TO_SHORT(pmd->synth.pcm.samples[0][i]);
+               write_int16_host_endian(fn->buf + fn->loaded, s);
+               fn->loaded += 2;
                if (MAD_NCHANNELS(&pmd->frame.header) == 2) { /* stereo */
                        s = MAD_TO_SHORT(pmd->synth.pcm.samples[1][i]);
-                       fn->buf[fn->loaded++] = s & 0xff;
-                       fn->buf[fn->loaded++] = s >> 8;
+                       write_int16_host_endian(fn->buf + fn->loaded, s);
+                       fn->loaded += 2;
                }
                if (fn->loaded != fn->bufsize) /* output buffer not full */
                        continue;
@@ -98,8 +92,8 @@ next_frame:
 out:
        if (pmd->stream.next_frame) { /* we still have some data */
                size_t off = pmd->stream.bufend - pmd->stream.next_frame;
-               PARA_DEBUG_LOG("converted %zd, rate: %u, returning %zd\n", len - off,
-                       fn->fc->samplerate, copy - off);
+//             PARA_INFO_LOG("off: %zd, rate: %u, returning %zd\n", off,
+//                     fn->fc->samplerate, copy - off);
                return copy - off;
        }
        return copy;
@@ -131,9 +125,12 @@ static void mp3dec_open(struct filter_node *fn)
        fn->bufsize = MP3_OUTBUF_SIZE;
        fn->buf = para_calloc(fn->bufsize);
 }
+
 /**
  * the init function of the mp3dec filter
  *
+ * \param f pointer to the filter struct to initialize
+ *
  * \sa filter::init
  */
 void mp3dec_init(struct filter *f)