/*
* A52 decoder
- * Copyright (c) 2001 Gerard Lantau.
+ * Copyright (c) 2001 Fabrice Bellard.
*
- * 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
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * This library 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 of the License, or (at your option) any later version.
*
- * This program is distributed in the hope that it will be useful,
+ * This library 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 General Public License for more details.
+ * 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 General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+
+/**
+ * @file a52dec.c
+ * A52 decoder.
+ */
+
#include "avcodec.h"
#include "liba52/a52.h"
* released under the GPL license.
*/
typedef struct AC3DecodeState {
- UINT8 inbuf[4096]; /* input buffer */
- UINT8 *inbuf_ptr;
+ uint8_t inbuf[4096]; /* input buffer */
+ uint8_t *inbuf_ptr;
int frame_size;
int flags;
int channels;
return i - 0x43c00000;
}
-static inline void float_to_int (float * _f, INT16 * s16, int nchannels)
+static inline void float_to_int (float * _f, int16_t * s16, int nchannels)
{
int i, j, c;
int32_t * f = (int32_t *) _f; // XXX assumes IEEE float format
static int a52_decode_frame(AVCodecContext *avctx,
void *data, int *data_size,
- UINT8 *buf, int buf_size)
+ uint8_t *buf, int buf_size)
{
AC3DecodeState *s = avctx->priv_data;
- UINT8 *buf_ptr;
+ uint8_t *buf_ptr;
int flags, i, len;
int sample_rate, bit_rate;
short *out_samples = data;
2, 1, 2, 3, 3, 4, 4, 5
};
- *data_size = 0;
buf_ptr = buf;
while (buf_size > 0) {
len = s->inbuf_ptr - s->inbuf;
/* No specific number of channel requested */
avctx->channels = s->channels;
else if (s->channels < avctx->channels) {
- fprintf(stderr, "ac3dec: AC3 Source channels are less than specified: output to %d channels.. (frmsize: %d)\n", s->channels, len);
+ av_log(avctx, AV_LOG_ERROR, "ac3dec: AC3 Source channels are less than specified: output to %d channels.. (frmsize: %d)\n", s->channels, len);
avctx->channels = s->channels;
}
avctx->bit_rate = bit_rate;
}
s->inbuf_ptr = s->inbuf;
s->frame_size = 0;
- *data_size = 6 * avctx->channels * 256 * sizeof(INT16);
+ *data_size = 6 * avctx->channels * 256 * sizeof(int16_t);
break;
}
}