* Real Audio 1.0 (14.4K) encoder
* Copyright (c) 2010 Francesco Lavra <francescolavra@interfree.it>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav 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,
+ * Libav 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
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avcodec.h"
#include "put_bits.h"
-#include "lpc.h"
#include "celp_filters.h"
#include "ra144.h"
static av_cold int ra144_encode_init(AVCodecContext * avctx)
{
RA144Context *ractx;
+ int ret;
- if (avctx->sample_fmt != SAMPLE_FMT_S16) {
+ if (avctx->sample_fmt != AV_SAMPLE_FMT_S16) {
av_log(avctx, AV_LOG_ERROR, "invalid sample format\n");
return -1;
}
ractx->lpc_coef[0] = ractx->lpc_tables[0];
ractx->lpc_coef[1] = ractx->lpc_tables[1];
ractx->avctx = avctx;
- dsputil_init(&ractx->dsp, avctx);
+ ret = ff_lpc_init(&ractx->lpc_ctx, avctx->frame_size, LPC_ORDER,
+ FF_LPC_TYPE_LEVINSON);
+ return ret;
+}
+
+
+static av_cold int ra144_encode_close(AVCodecContext *avctx)
+{
+ RA144Context *ractx = avctx->priv_data;
+ ff_lpc_end(&ractx->lpc_ctx);
return 0;
}
energy = ff_energy_tab[quantize(ff_t_sqrt(energy >> 5) >> 10, ff_energy_tab,
32)];
- ff_lpc_calc_coefs(&ractx->dsp, lpc_data, NBLOCKS * BLOCKSIZE, LPC_ORDER,
- LPC_ORDER, 16, lpc_coefs, shift, 1, ORDER_METHOD_EST, 12,
- 0);
+ ff_lpc_calc_coefs(&ractx->lpc_ctx, lpc_data, NBLOCKS * BLOCKSIZE, LPC_ORDER,
+ LPC_ORDER, 16, lpc_coefs, shift, FF_LPC_TYPE_LEVINSON,
+ 0, ORDER_METHOD_EST, 12, 0);
for (i = 0; i < LPC_ORDER; i++)
block_coefs[NBLOCKS - 1][i] = -(lpc_coefs[LPC_ORDER - 1][i] <<
(12 - shift[LPC_ORDER - 1]));
}
-AVCodec ra_144_encoder =
+AVCodec ff_ra_144_encoder =
{
"real_144",
- CODEC_TYPE_AUDIO,
+ AVMEDIA_TYPE_AUDIO,
CODEC_ID_RA_144,
sizeof(RA144Context),
ra144_encode_init,
ra144_encode_frame,
+ ra144_encode_close,
.long_name = NULL_IF_CONFIG_SMALL("RealAudio 1.0 (14.4K) encoder"),
};