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  • Committer: Package Import Robot
  • Author(s): Sebastian Dröge
  • Date: 2013-07-30 09:00:15 UTC
  • mfrom: (1.1.16) (7.1.7 experimental)
  • Revision ID: package-import@ubuntu.com-20130730090015-sc1ou2yssu7q5w4e
Tags: 1.1.3-1
* New upstream development snapshot:
  + debian/control:
    - Build depend on GStreamer and gst-plugins-base >= 1.1.3.

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gst-libs/ext/libav/libavcodec/sipr.c
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#include <stdint.h>
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#include <string.h>
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#include "libavutil/channel_layout.h"
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#include "libavutil/mathematics.h"
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#include "avcodec.h"
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#define BITSTREAM_READER_LE
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#include "get_bits.h"
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#include "dsputil.h"
 
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#include "internal.h"
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#include "lsp.h"
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#include "celp_math.h"
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#include "acelp_vectors.h"
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#include "acelp_pitch_delay.h"
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#include "acelp_filters.h"
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                              SUBFR_SIZE);
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        avg_energy =
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            (0.01 + ff_dot_productf(fixed_vector, fixed_vector, SUBFR_SIZE))/
 
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            (0.01 + ff_scalarproduct_float_c(fixed_vector, fixed_vector, SUBFR_SIZE)) /
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                SUBFR_SIZE;
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        ctx->past_pitch_gain = pitch_gain = gain_cb[params->gc_index[i]][0];
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    if (ctx->mode == MODE_5k0) {
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        for (i = 0; i < subframe_count; i++) {
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            float energy = ff_dot_productf(ctx->postfilter_syn5k0 + LP_FILTER_ORDER + i*SUBFR_SIZE,
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                                           ctx->postfilter_syn5k0 + LP_FILTER_ORDER + i*SUBFR_SIZE,
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                                           SUBFR_SIZE);
 
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            float energy = ff_scalarproduct_float_c(ctx->postfilter_syn5k0 + LP_FILTER_ORDER + i * SUBFR_SIZE,
 
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                                                    ctx->postfilter_syn5k0 + LP_FILTER_ORDER + i * SUBFR_SIZE,
 
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                                                    SUBFR_SIZE);
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            ff_adaptive_gain_control(&synth[i * SUBFR_SIZE],
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                                     &synth[i * SUBFR_SIZE], energy,
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                                     SUBFR_SIZE, 0.9, &ctx->postfilter_agc);
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    for (i = 0; i < 4; i++)
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        ctx->energy_history[i] = -14;
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    avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
 
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    avctx->channels       = 1;
 
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    avctx->channel_layout = AV_CH_LAYOUT_MONO;
 
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    avctx->sample_fmt     = AV_SAMPLE_FMT_FLT;
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    avcodec_get_frame_defaults(&ctx->frame);
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    avctx->coded_frame = &ctx->frame;
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    /* get output buffer */
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    ctx->frame.nb_samples = mode_par->frames_per_packet * subframe_size *
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                            mode_par->subframe_count;
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    if ((ret = avctx->get_buffer(avctx, &ctx->frame)) < 0) {
 
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    if ((ret = ff_get_buffer(avctx, &ctx->frame)) < 0) {
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        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
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        return ret;
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    }
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AVCodec ff_sipr_decoder = {
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    .name           = "sipr",
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    .type           = AVMEDIA_TYPE_AUDIO,
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    .id             = CODEC_ID_SIPR,
 
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    .id             = AV_CODEC_ID_SIPR,
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    .priv_data_size = sizeof(SiprContext),
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    .init           = sipr_decoder_init,
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    .decode         = sipr_decode_frame,
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    .capabilities   = CODEC_CAP_DR1,
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    .long_name = NULL_IF_CONFIG_SMALL("RealAudio SIPR / ACELP.NET"),
 
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    .long_name      = NULL_IF_CONFIG_SMALL("RealAudio SIPR / ACELP.NET"),
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};