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aacenc: create and initialize an LTP context

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This commit only creates and initializes an LTP
context which is needed for upcoming commits (TNS).

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
This commit is contained in:
Rostislav Pehlivanov 2015-08-21 18:43:09 +01:00
parent 23e786be61
commit b47a1e5c5f
2 changed files with 5 additions and 0 deletions
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2
libavcodec/aacenc.c
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@ -676,6 +676,7 @@ static av_cold int aac_encode_end(AVCodecContext *avctx)
ff_mdct_end(&s->mdct1024);
ff_mdct_end(&s->mdct128);
ff_psy_end(&s->psy);
ff_lpc_end(&s->lpc);
if (s->psypp)
ff_psy_preprocess_end(s->psypp);
av_freep(&s->buffer.samples);
@ -775,6 +776,7 @@ static av_cold int aac_encode_init(AVCodecContext *avctx)
goto fail;
s->psypp = ff_psy_preprocess_init(avctx);
s->coder = &ff_aac_coders[s->options.aac_coder];
ff_lpc_init(&s->lpc, avctx->frame_size, TNS_MAX_ORDER, FF_LPC_TYPE_LEVINSON);
if (HAVE_MIPSDSPR1)
ff_aac_coder_init_mips(s);

3
libavcodec/aacenc.h
View File

@ -30,6 +30,8 @@
#include "audio_frame_queue.h"
#include "psymodel.h"
#include "lpc.h"
typedef enum AACCoder {
AAC_CODER_FAAC = 0,
AAC_CODER_ANMR,
@ -75,6 +77,7 @@ typedef struct AACEncContext {
AVFloatDSPContext *fdsp;
float *planar_samples[6]; ///< saved preprocessed input
LPCContext lpc; ///< used by TNS
int samplerate_index; ///< MPEG-4 samplerate index
int channels; ///< channel count
const uint8_t *chan_map; ///< channel configuration map