9b7ec42403
Sync to commit bb4b6885a139644cf3ac14e7deda9f633ec2d93c
This brings in a bunch of optimizations to decode speed
and memory usage. Allocations are switched from using
the pseudostack to using the real stack. Enabled hacks
to reduce stack usage.
This should fix crashes on sansa clip, although some
files will not play due to failing allocations in the
codec buffer.
Speeds up decoding of the following test files:
H300 (cf) C200 (arm7tdmi) ipod classic (arm9e)
16 kbps (silk) 14.28 MHz 4.00 MHz 2.61 MHz
64 kbps (celt) 4.09 MHz 8.08 MHz 6.24 MHz
128 kbps (celt) 1.93 MHz 8.83 MHz 6.53 MHz
Change-Id: I851733a8a5824b61feb363a173091bc7e6629b58
126 lines
4.9 KiB
C
126 lines
4.9 KiB
C
/* Copyright (c) 2012 Xiph.Org Foundation
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Written by Jean-Marc Valin */
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/*
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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- Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef OPUS_PRIVATE_H
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#define OPUS_PRIVATE_H
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#include "arch.h"
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#include "opus.h"
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#include "celt.h"
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struct OpusRepacketizer {
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unsigned char toc;
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int nb_frames;
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const unsigned char *frames[48];
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opus_int16 len[48];
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int framesize;
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};
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typedef struct ChannelLayout {
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int nb_channels;
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int nb_streams;
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int nb_coupled_streams;
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unsigned char mapping[256];
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} ChannelLayout;
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int validate_layout(const ChannelLayout *layout);
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int get_left_channel(const ChannelLayout *layout, int stream_id, int prev);
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int get_right_channel(const ChannelLayout *layout, int stream_id, int prev);
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int get_mono_channel(const ChannelLayout *layout, int stream_id, int prev);
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#define MODE_SILK_ONLY 1000
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#define MODE_HYBRID 1001
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#define MODE_CELT_ONLY 1002
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#define OPUS_SET_VOICE_RATIO_REQUEST 11018
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#define OPUS_GET_VOICE_RATIO_REQUEST 11019
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/** Configures the encoder's expected percentage of voice
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* opposed to music or other signals.
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*
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* @note This interface is currently more aspiration than actuality. It's
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* ultimately expected to bias an automatic signal classifier, but it currently
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* just shifts the static bitrate to mode mapping around a little bit.
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*
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* @param[in] x <tt>int</tt>: Voice percentage in the range 0-100, inclusive.
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* @hideinitializer */
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#define OPUS_SET_VOICE_RATIO(x) OPUS_SET_VOICE_RATIO_REQUEST, __opus_check_int(x)
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/** Gets the encoder's configured voice ratio value, @see OPUS_SET_VOICE_RATIO
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*
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* @param[out] x <tt>int*</tt>: Voice percentage in the range 0-100, inclusive.
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* @hideinitializer */
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#define OPUS_GET_VOICE_RATIO(x) OPUS_GET_VOICE_RATIO_REQUEST, __opus_check_int_ptr(x)
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#define OPUS_SET_FORCE_MODE_REQUEST 11002
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#define OPUS_SET_FORCE_MODE(x) OPUS_SET_FORCE_MODE_REQUEST, __opus_check_int(x)
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typedef void (*downmix_func)(const void *, opus_val32 *, int, int, int, int, int);
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void downmix_float(const void *_x, opus_val32 *sub, int subframe, int offset, int c1, int c2, int C);
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void downmix_int(const void *_x, opus_val32 *sub, int subframe, int offset, int c1, int c2, int C);
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int encode_size(int size, unsigned char *data);
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opus_int32 frame_size_select(opus_int32 frame_size, int variable_duration, opus_int32 Fs);
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opus_int32 compute_frame_size(const void *analysis_pcm, int frame_size,
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int variable_duration, int C, opus_int32 Fs, int bitrate_bps,
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int delay_compensation, downmix_func downmix
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#ifndef DISABLE_FLOAT_API
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, float *subframe_mem
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#endif
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);
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opus_int32 opus_encode_native(OpusEncoder *st, const opus_val16 *pcm, int frame_size,
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unsigned char *data, opus_int32 out_data_bytes, int lsb_depth,
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const void *analysis_pcm, opus_int32 analysis_size, int c1, int c2,
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int analysis_channels, downmix_func downmix, int float_api);
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int opus_decode_native(OpusDecoder *st, const unsigned char *data, opus_int32 len,
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opus_val16 *pcm, int frame_size, int decode_fec, int self_delimited,
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opus_int32 *packet_offset, int soft_clip);
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/* Make sure everything's aligned to sizeof(void *) bytes */
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static OPUS_INLINE int align(int i)
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{
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return (i+(int)sizeof(void *)-1)&-(int)sizeof(void *);
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}
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int opus_packet_parse_impl(const unsigned char *data, opus_int32 len,
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int self_delimited, unsigned char *out_toc,
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const unsigned char *frames[48], opus_int16 size[48],
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int *payload_offset, opus_int32 *packet_offset);
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opus_int32 opus_repacketizer_out_range_impl(OpusRepacketizer *rp, int begin, int end,
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unsigned char *data, opus_int32 maxlen, int self_delimited, int pad);
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int pad_frame(unsigned char *data, opus_int32 len, opus_int32 new_len);
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#endif /* OPUS_PRIVATE_H */
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