*
* Copyright (c) 2008 Bartlomiej Wolowiec
*
- * 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
*/
*
* Generic codec information: libavcodec/nellymoserdec.c
*
- * Some information also from: http://samples.mplayerhq.hu/A-codecs/Nelly_Moser/ASAO/ASAO.zip
+ * Some information also from: http://samples.libav.org/A-codecs/Nelly_Moser/ASAO/ASAO.zip
* (Copyright Joseph Artsimovich and UAB "DKD")
*
* for more information about nellymoser format, visit:
#include "avcodec.h"
#include "dsputil.h"
#include "fft.h"
+#include "sinewin.h"
#define BITSTREAM_WRITER_LE
#include "put_bits.h"
int have_saved;
DSPContext dsp;
FFTContext mdct_ctx;
- DECLARE_ALIGNED(16, float, mdct_out)[NELLY_SAMPLES];
- DECLARE_ALIGNED(16, float, in_buff)[NELLY_SAMPLES];
- DECLARE_ALIGNED(16, float, buf)[2][3 * NELLY_BUF_LEN]; ///< sample buffer
+ DECLARE_ALIGNED(32, float, mdct_out)[NELLY_SAMPLES];
+ DECLARE_ALIGNED(32, float, in_buff)[NELLY_SAMPLES];
+ DECLARE_ALIGNED(32, float, buf)[2][3 * NELLY_BUF_LEN]; ///< sample buffer
float (*opt )[NELLY_BANDS];
uint8_t (*path)[NELLY_BANDS];
} NellyMoserEncodeContext;
static void apply_mdct(NellyMoserEncodeContext *s)
{
- memcpy(s->in_buff, s->buf[s->bufsel], NELLY_BUF_LEN * sizeof(float));
- s->dsp.vector_fmul(s->in_buff, ff_sine_128, NELLY_BUF_LEN);
+ s->dsp.vector_fmul(s->in_buff, s->buf[s->bufsel], ff_sine_128, NELLY_BUF_LEN);
s->dsp.vector_fmul_reverse(s->in_buff + NELLY_BUF_LEN, s->buf[s->bufsel] + NELLY_BUF_LEN, ff_sine_128,
NELLY_BUF_LEN);
- ff_mdct_calc(&s->mdct_ctx, s->mdct_out, s->in_buff);
+ s->mdct_ctx.mdct_calc(&s->mdct_ctx, s->mdct_out, s->in_buff);
- s->dsp.vector_fmul(s->buf[s->bufsel] + NELLY_BUF_LEN, ff_sine_128, NELLY_BUF_LEN);
+ s->dsp.vector_fmul(s->buf[s->bufsel] + NELLY_BUF_LEN, s->buf[s->bufsel] + NELLY_BUF_LEN,
+ ff_sine_128, NELLY_BUF_LEN);
s->dsp.vector_fmul_reverse(s->buf[s->bufsel] + 2 * NELLY_BUF_LEN, s->buf[1 - s->bufsel], ff_sine_128,
NELLY_BUF_LEN);
- ff_mdct_calc(&s->mdct_ctx, s->mdct_out + NELLY_BUF_LEN, s->buf[s->bufsel] + NELLY_BUF_LEN);
+ s->mdct_ctx.mdct_calc(&s->mdct_ctx, s->mdct_out + NELLY_BUF_LEN, s->buf[s->bufsel] + NELLY_BUF_LEN);
}
static av_cold int encode_init(AVCodecContext *avctx)
avctx->frame_size = NELLY_SAMPLES;
s->avctx = avctx;
- ff_mdct_init(&s->mdct_ctx, 8, 0, 1.0);
+ ff_mdct_init(&s->mdct_ctx, 8, 0, 32768.0);
dsputil_init(&s->dsp, avctx);
/* Generate overlap window */
static int encode_frame(AVCodecContext *avctx, uint8_t *frame, int buf_size, void *data)
{
NellyMoserEncodeContext *s = avctx->priv_data;
- const int16_t *samples = data;
+ const float *samples = data;
int i;
if (s->last_frame)
return 0;
if (data) {
- for (i = 0; i < avctx->frame_size; i++) {
- s->buf[s->bufsel][i] = samples[i];
- }
- for (; i < NELLY_SAMPLES; i++) {
+ memcpy(s->buf[s->bufsel], samples, avctx->frame_size * sizeof(*samples));
+ for (i = avctx->frame_size; i < NELLY_SAMPLES; i++) {
s->buf[s->bufsel][i] = 0;
}
s->bufsel = 1 - s->bufsel;
return 0;
}
-AVCodec nellymoser_encoder = {
+AVCodec ff_nellymoser_encoder = {
.name = "nellymoser",
.type = AVMEDIA_TYPE_AUDIO,
.id = CODEC_ID_NELLYMOSER,
.close = encode_end,
.capabilities = CODEC_CAP_SMALL_LAST_FRAME | CODEC_CAP_DELAY,
.long_name = NULL_IF_CONFIG_SMALL("Nellymoser Asao"),
- .sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_S16,AV_SAMPLE_FMT_NONE},
+ .sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_FLT,AV_SAMPLE_FMT_NONE},
};