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Viewing changes to gst-libs/ext/libav/libavcodec/psymodel.c

  • 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/psymodel.c
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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#include <string.h>
 
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#include "avcodec.h"
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#include "psymodel.h"
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#include "iirfilter.h"
 
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#include "libavutil/mem.h"
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extern const FFPsyModel ff_aac_psy_model;
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    }
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    switch (ctx->avctx->codec_id) {
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    case CODEC_ID_AAC:
 
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    case AV_CODEC_ID_AAC:
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        ctx->model = &ff_aac_psy_model;
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        break;
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    }
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    return ctx;
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}
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void ff_psy_preprocess(struct FFPsyPreprocessContext *ctx,
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                       const int16_t *audio, int16_t *dest,
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                       int tag, int channels)
 
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void ff_psy_preprocess(struct FFPsyPreprocessContext *ctx, float **audio, int channels)
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{
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    int ch, i;
 
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    int ch;
 
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    int frame_size = ctx->avctx->frame_size;
 
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    if (ctx->fstate) {
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        for (ch = 0; ch < channels; ch++)
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            ff_iir_filter(ctx->fcoeffs, ctx->fstate[tag+ch], ctx->avctx->frame_size,
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                          audio + ch, ctx->avctx->channels,
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                          dest  + ch, ctx->avctx->channels);
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    } else {
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        for (ch = 0; ch < channels; ch++)
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            for (i = 0; i < ctx->avctx->frame_size; i++)
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                dest[i*ctx->avctx->channels + ch] = audio[i*ctx->avctx->channels + ch];
 
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            ff_iir_filter_flt(ctx->fcoeffs, ctx->fstate[ch], frame_size,
 
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                              &audio[ch][frame_size], 1, &audio[ch][frame_size], 1);
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    }
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}
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    av_freep(&ctx->fstate);
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    av_free(ctx);
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}
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