/*
* RealAudio 2.0 (28.8K)
- * Copyright (c) 2003 the ffmpeg project
+ * Copyright (c) 2003 The FFmpeg project
*
* This file is part of Libav.
*
#include "libavutil/channel_layout.h"
#include "libavutil/float_dsp.h"
-#include "avcodec.h"
+#include "libavutil/internal.h"
+
#define BITSTREAM_READER_LE
+#include "avcodec.h"
+#include "celp_filters.h"
#include "get_bits.h"
-#include "ra288.h"
+#include "internal.h"
#include "lpc.h"
-#include "celp_filters.h"
+#include "ra288.h"
#define MAX_BACKWARD_FILTER_ORDER 36
#define MAX_BACKWARD_FILTER_LEN 40
#define RA288_BLOCK_SIZE 5
#define RA288_BLOCKS_PER_FRAME 32
-typedef struct {
- AVFrame frame;
- DSPContext dsp;
+typedef struct RA288Context {
AVFloatDSPContext fdsp;
DECLARE_ALIGNED(32, float, sp_lpc)[FFALIGN(36, 16)]; ///< LPC coefficients for speech data (spec: A)
DECLARE_ALIGNED(32, float, gain_lpc)[FFALIGN(10, 16)]; ///< LPC coefficients for gain (spec: GB)
avctx->channel_layout = AV_CH_LAYOUT_MONO;
avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
- avpriv_float_dsp_init(&ractx->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);
-
- avcodec_get_frame_defaults(&ractx->frame);
- avctx->coded_frame = &ractx->frame;
+ avpriv_float_dsp_init(&ractx->fdsp, avctx->flags & AV_CODEC_FLAG_BITEXACT);
return 0;
}
static void convolve(float *tgt, const float *src, int len, int n)
{
for (; n >= 0; n--)
- tgt[n] = ff_scalarproduct_float_c(src, src - n, len);
+ tgt[n] = avpriv_scalarproduct_float_c(src, src - n, len);
}
memmove(ractx->sp_hist + 70, ractx->sp_hist + 75, 36*sizeof(*block));
/* block 46 of G.728 spec */
- sum = 32.;
+ sum = 32.0;
for (i=0; i < 10; i++)
sum -= gain_block[9-i] * ractx->gain_lpc[i];
for (i=0; i < 5; i++)
buffer[i] = codetable[cb_coef][i] * sumsum;
- sum = ff_scalarproduct_float_c(buffer, buffer, 5) * ((1 << 24) / 5.);
+ sum = avpriv_scalarproduct_float_c(buffer, buffer, 5) * ((1 << 24) / 5.0);
sum = FFMAX(sum, 1);
}
/* Multiply by the white noise correcting factor (WNCF). */
- *out *= 257./256.;
+ *out *= 257.0 / 256.0;
}
/**
static int ra288_decode_frame(AVCodecContext * avctx, void *data,
int *got_frame_ptr, AVPacket *avpkt)
{
+ AVFrame *frame = data;
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
float *out;
}
/* get output buffer */
- ractx->frame.nb_samples = RA288_BLOCK_SIZE * RA288_BLOCKS_PER_FRAME;
- if ((ret = avctx->get_buffer(avctx, &ractx->frame)) < 0) {
+ frame->nb_samples = RA288_BLOCK_SIZE * RA288_BLOCKS_PER_FRAME;
+ if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {
av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
return ret;
}
- out = (float *)ractx->frame.data[0];
+ out = (float *)frame->data[0];
init_get_bits(&gb, buf, avctx->block_align * 8);
}
}
- *got_frame_ptr = 1;
- *(AVFrame *)data = ractx->frame;
+ *got_frame_ptr = 1;
return avctx->block_align;
}
AVCodec ff_ra_288_decoder = {
.name = "real_288",
+ .long_name = NULL_IF_CONFIG_SMALL("RealAudio 2.0 (28.8K)"),
.type = AVMEDIA_TYPE_AUDIO,
.id = AV_CODEC_ID_RA_288,
.priv_data_size = sizeof(RA288Context),
.init = ra288_decode_init,
.decode = ra288_decode_frame,
- .capabilities = CODEC_CAP_DR1,
- .long_name = NULL_IF_CONFIG_SMALL("RealAudio 2.0 (28.8K)"),
+ .capabilities = AV_CODEC_CAP_DR1,
};