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ra144: Convert to the new bitstream reader

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This commit is contained in:
Alexandra Hájková 2016-04-13 11:53:47 +02:00 committed by Diego Biurrun
parent 79566ec8c7
commit 7d8075cf47
1 changed files with 12 additions and 11 deletions
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23
libavcodec/ra144dec.c
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@ -23,8 +23,9 @@
*/
#include "libavutil/channel_layout.h"
#include "avcodec.h"
#include "get_bits.h"
#include "bitstream.h"
#include "internal.h"
#include "ra144.h"
@ -46,12 +47,12 @@ static av_cold int ra144_decode_init(AVCodecContext * avctx)
}
static void do_output_subblock(RA144Context *ractx, const uint16_t *lpc_coefs,
int gval, GetBitContext *gb)
int gval, BitstreamContext *bc)
{
int cba_idx = get_bits(gb, 7); // index of the adaptive CB, 0 if none
int gain = get_bits(gb, 8);
int cb1_idx = get_bits(gb, 7);
int cb2_idx = get_bits(gb, 7);
int cba_idx = bitstream_read(bc, 7); // index of the adaptive CB, 0 if none
int gain = bitstream_read(bc, 8);
int cb1_idx = bitstream_read(bc, 7);
int cb2_idx = bitstream_read(bc, 7);
ff_subblock_synthesis(ractx, lpc_coefs, cba_idx, cb1_idx, cb2_idx, gval,
gain);
@ -74,7 +75,7 @@ static int ra144_decode_frame(AVCodecContext * avctx, void *data,
unsigned int energy;
RA144Context *ractx = avctx->priv_data;
GetBitContext gb;
BitstreamContext bc;
if (buf_size < FRAMESIZE) {
av_log(avctx, AV_LOG_ERROR,
@ -91,15 +92,15 @@ static int ra144_decode_frame(AVCodecContext * avctx, void *data,
}
samples = (int16_t *)frame->data[0];
init_get_bits(&gb, buf, FRAMESIZE * 8);
bitstream_init(&bc, buf, FRAMESIZE * 8);
for (i = 0; i < LPC_ORDER; i++)
lpc_refl[i] = ff_lpc_refl_cb[i][get_bits(&gb, sizes[i])];
lpc_refl[i] = ff_lpc_refl_cb[i][bitstream_read(&bc, sizes[i])];
ff_eval_coefs(ractx->lpc_coef[0], lpc_refl);
ractx->lpc_refl_rms[0] = ff_rms(lpc_refl);
energy = ff_energy_tab[get_bits(&gb, 5)];
energy = ff_energy_tab[bitstream_read(&bc, 5)];
refl_rms[0] = ff_interp(ractx, block_coefs[0], 1, 1, ractx->old_energy);
refl_rms[1] = ff_interp(ractx, block_coefs[1], 2,
@ -111,7 +112,7 @@ static int ra144_decode_frame(AVCodecContext * avctx, void *data,
ff_int_to_int16(block_coefs[3], ractx->lpc_coef[0]);
for (i=0; i < NBLOCKS; i++) {
do_output_subblock(ractx, block_coefs[i], refl_rms[i], &gb);
do_output_subblock(ractx, block_coefs[i], refl_rms[i], &bc);
for (j=0; j < BLOCKSIZE; j++)
*samples++ = av_clip_int16(ractx->curr_sblock[j + 10] << 2);