Rename filter source files.

[paraslash.git] / mp3dec.c

diff --git a/mp3dec.c b/mp3dec.c
deleted file mode 100644 (file)
index 599d8a9..0000000
--- a/mp3dec.c
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Copyright (C) 2005-2008 Andre Noll <maan@systemlinux.org>
- *
- * Licensed under the GPL v2. For licencing details see COPYING.
- */
-
-/** \file mp3dec.c Paraslash's mp3 decoder. */
-
-#include "para.h"
-#include "list.h"
-#include "sched.h"
-#include "filter.h"
-#include "error.h"
-#include <mad.h>
-#include "string.h"
-
-/** The output buffer size. */
-#define MP3_OUTBUF_SIZE (128 * 1024)
-
-/** Convert a sample value from libmad to a signed short. */
-#define MAD_TO_SHORT(f) (f) >= MAD_F_ONE? SHRT_MAX :\
-       (f) <= -MAD_F_ONE? -SHRT_MAX : (signed short) ((f) >> (MAD_F_FRACBITS - 15))
-
-/** Data specific to the mp3dec filter. */
-struct private_mp3dec_data {
-       /** Information on the current mp3 stream. */
-       struct mad_stream stream;
-       /** Information about the frame which is currently decoded. */
-       struct mad_frame frame;
-       /** Contains the PCM output. */
-       struct mad_synth synth;
-};
-
-static ssize_t mp3dec(char *inbuffer, size_t len, struct filter_node *fn)
-{
-       int i, ret;
-       struct private_mp3dec_data *pmd = fn->private_data;
-       size_t copy = PARA_MIN(len, 4096);
-
-       if (fn->loaded > fn->bufsize * 4 / 5)
-               return 0;
-       mad_stream_buffer(&pmd->stream, (unsigned char *) inbuffer, copy);
-       pmd->stream.error = 0;
-next_frame:
-       ret = mad_header_decode(&pmd->frame.header, &pmd->stream);
-       if (ret < 0) {
-               if (pmd->stream.error != MAD_ERROR_BUFLEN &&
-                       pmd->stream.error != MAD_ERROR_LOSTSYNC)
-                       PARA_DEBUG_LOG("header decode: %s\n",
-                               mad_stream_errorstr(&pmd->stream));
-               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);
-       if (ret) {
-               if (MAD_RECOVERABLE(pmd->stream.error) ||
-                       pmd->stream.error == MAD_ERROR_BUFLEN) {
-                       PARA_DEBUG_LOG("frame decode: %s\n",
-                               mad_stream_errorstr(&pmd->stream));
-                       goto out;
-               }
-               PARA_ERROR_LOG("frame decode: %s\n",
-                       mad_stream_errorstr(&pmd->stream));
-               return -E_MAD_FRAME_DECODE;
-       }
-       mad_synth_frame(&pmd->synth, &pmd->frame);
-
-       for (i = 0; i < pmd->synth.pcm.length; i++) {
-               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]);
-                       write_int16_host_endian(fn->buf + fn->loaded, s);
-                       fn->loaded += 2;
-               }
-               if (fn->loaded != fn->bufsize) /* output buffer not full */
-                       continue;
-               PARA_ERROR_LOG("output buffer full: %zd\n", fn->loaded);
-                       return -E_MP3DEC_OVERRUN;
-       }
-       if (fn->loaded <= fn->bufsize * 4 / 5)
-               goto next_frame;
-out:
-       if (pmd->stream.next_frame) { /* we still have some data */
-               size_t off = pmd->stream.bufend - pmd->stream.next_frame;
-//             PARA_INFO_LOG("off: %zd, rate: %u, returning %zd\n", off,
-//                     fn->fc->samplerate, copy - off);
-               return copy - off;
-       }
-       return copy;
-}
-
-static void mp3dec_close(struct filter_node *fn)
-{
-       struct private_mp3dec_data *pmd = fn->private_data;
-
-       mad_synth_finish(&pmd->synth);
-       mad_frame_finish(&pmd->frame);
-       mad_stream_finish(&pmd->stream);
-
-       free(fn->buf);
-       fn->buf = NULL;
-       free(pmd);
-       fn->private_data = NULL;
-}
-
-static void mp3dec_open(struct filter_node *fn)
-{
-       struct private_mp3dec_data *pmd = para_calloc(sizeof(*pmd));
-
-       fn->private_data = pmd;
-       mad_stream_init(&pmd->stream);
-       mad_frame_init(&pmd->frame);
-       mad_synth_init(&pmd->synth);
-       fn->loaded = 0;
-       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_filter_init(struct filter *f)
-{
-       f->open = mp3dec_open;
-       f->convert = mp3dec;
-       f->close = mp3dec_close;
-}