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@ -23,8 +23,9 @@ |
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*/ |
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#include "libavutil/channel_layout.h" |
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#include "avcodec.h" |
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#include "get_bits.h" |
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#include "bitstream.h" |
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#include "internal.h" |
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#include "ra144.h" |
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@ -46,12 +47,12 @@ static av_cold int ra144_decode_init(AVCodecContext * avctx) |
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} |
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static void do_output_subblock(RA144Context *ractx, const uint16_t *lpc_coefs, |
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int gval, GetBitContext *gb) |
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int gval, BitstreamContext *bc) |
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{ |
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int cba_idx = get_bits(gb, 7); // index of the adaptive CB, 0 if none
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int gain = get_bits(gb, 8); |
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int cb1_idx = get_bits(gb, 7); |
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int cb2_idx = get_bits(gb, 7); |
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int cba_idx = bitstream_read(bc, 7); // index of the adaptive CB, 0 if none
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int gain = bitstream_read(bc, 8); |
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int cb1_idx = bitstream_read(bc, 7); |
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int cb2_idx = bitstream_read(bc, 7); |
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ff_subblock_synthesis(ractx, lpc_coefs, cba_idx, cb1_idx, cb2_idx, gval, |
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gain); |
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@ -74,7 +75,7 @@ static int ra144_decode_frame(AVCodecContext * avctx, void *data, |
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unsigned int energy; |
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RA144Context *ractx = avctx->priv_data; |
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GetBitContext gb; |
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BitstreamContext bc; |
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if (buf_size < FRAMESIZE) { |
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av_log(avctx, AV_LOG_ERROR, |
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@ -91,15 +92,15 @@ static int ra144_decode_frame(AVCodecContext * avctx, void *data, |
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} |
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samples = (int16_t *)frame->data[0]; |
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init_get_bits(&gb, buf, FRAMESIZE * 8); |
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bitstream_init(&bc, buf, FRAMESIZE * 8); |
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for (i = 0; i < LPC_ORDER; i++) |
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lpc_refl[i] = ff_lpc_refl_cb[i][get_bits(&gb, sizes[i])]; |
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lpc_refl[i] = ff_lpc_refl_cb[i][bitstream_read(&bc, sizes[i])]; |
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ff_eval_coefs(ractx->lpc_coef[0], lpc_refl); |
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ractx->lpc_refl_rms[0] = ff_rms(lpc_refl); |
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energy = ff_energy_tab[get_bits(&gb, 5)]; |
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energy = ff_energy_tab[bitstream_read(&bc, 5)]; |
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refl_rms[0] = ff_interp(ractx, block_coefs[0], 1, 1, ractx->old_energy); |
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refl_rms[1] = ff_interp(ractx, block_coefs[1], 2, |
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@ -111,7 +112,7 @@ static int ra144_decode_frame(AVCodecContext * avctx, void *data, |
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ff_int_to_int16(block_coefs[3], ractx->lpc_coef[0]); |
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for (i=0; i < NBLOCKS; i++) { |
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do_output_subblock(ractx, block_coefs[i], refl_rms[i], &gb); |
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do_output_subblock(ractx, block_coefs[i], refl_rms[i], &bc); |
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for (j=0; j < BLOCKSIZE; j++) |
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*samples++ = av_clip_int16(ractx->curr_sblock[j + 10] << 2); |
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