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-rw-r--r--src/main/jni/opus/opusfile/internal.h249
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diff --git a/src/main/jni/opus/opusfile/internal.h b/src/main/jni/opus/opusfile/internal.h
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--- a/src/main/jni/opus/opusfile/internal.h
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-/********************************************************************
- * *
- * THIS FILE IS PART OF THE libopusfile SOFTWARE CODEC SOURCE CODE. *
- * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
- * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
- * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
- * *
- * THE libopusfile SOURCE CODE IS (C) COPYRIGHT 2012 *
- * by the Xiph.Org Foundation and contributors http://www.xiph.org/ *
- * *
- ********************************************************************/
-#if !defined(_opusfile_internal_h)
-# define _opusfile_internal_h (1)
-
-# if !defined(_REENTRANT)
-# define _REENTRANT
-# endif
-# if !defined(_GNU_SOURCE)
-# define _GNU_SOURCE
-# endif
-# if !defined(_LARGEFILE_SOURCE)
-# define _LARGEFILE_SOURCE
-# endif
-# if !defined(_LARGEFILE64_SOURCE)
-# define _LARGEFILE64_SOURCE
-# endif
-# if !defined(_FILE_OFFSET_BITS)
-# define _FILE_OFFSET_BITS 64
-# endif
-
-# include <stdlib.h>
-# include "opusfile.h"
-
-typedef struct OggOpusLink OggOpusLink;
-
-# if defined(OP_FIXED_POINT)
-
-typedef opus_int16 op_sample;
-
-# else
-
-typedef float op_sample;
-
-/*We're using this define to test for libopus 1.1 or later until libopus
- provides a better mechanism.*/
-# if defined(OPUS_GET_EXPERT_FRAME_DURATION_REQUEST)
-/*Enable soft clipping prevention in 16-bit decodes.*/
-# define OP_SOFT_CLIP (1)
-# endif
-
-# endif
-
-# if OP_GNUC_PREREQ(4,2)
-/*Disable excessive warnings about the order of operations.*/
-# pragma GCC diagnostic ignored "-Wparentheses"
-# elif defined(_MSC_VER)
-/*Disable excessive warnings about the order of operations.*/
-# pragma warning(disable:4554)
-/*Disable warnings about "deprecated" POSIX functions.*/
-# pragma warning(disable:4996)
-# endif
-
-# if OP_GNUC_PREREQ(3,0)
-/*Another alternative is
- (__builtin_constant_p(_x)?!!(_x):__builtin_expect(!!(_x),1))
- but that evaluates _x multiple times, which may be bad.*/
-# define OP_LIKELY(_x) (__builtin_expect(!!(_x),1))
-# define OP_UNLIKELY(_x) (__builtin_expect(!!(_x),0))
-# else
-# define OP_LIKELY(_x) (!!(_x))
-# define OP_UNLIKELY(_x) (!!(_x))
-# endif
-
-# if defined(OP_ENABLE_ASSERTIONS)
-# if OP_GNUC_PREREQ(2,5)||__SUNPRO_C>=0x590
-__attribute__((noreturn))
-# endif
-void op_fatal_impl(const char *_str,const char *_file,int _line);
-
-# define OP_FATAL(_str) (op_fatal_impl(_str,__FILE__,__LINE__))
-
-# define OP_ASSERT(_cond) \
- do{ \
- if(OP_UNLIKELY(!(_cond)))OP_FATAL("assertion failed: " #_cond); \
- } \
- while(0)
-# define OP_ALWAYS_TRUE(_cond) OP_ASSERT(_cond)
-
-# else
-# define OP_FATAL(_str) abort()
-# define OP_ASSERT(_cond)
-# define OP_ALWAYS_TRUE(_cond) ((void)(_cond))
-# endif
-
-# define OP_INT64_MAX (2*(((ogg_int64_t)1<<62)-1)|1)
-# define OP_INT64_MIN (-OP_INT64_MAX-1)
-# define OP_INT32_MAX (2*(((ogg_int32_t)1<<30)-1)|1)
-# define OP_INT32_MIN (-OP_INT32_MAX-1)
-
-# define OP_MIN(_a,_b) ((_a)<(_b)?(_a):(_b))
-# define OP_MAX(_a,_b) ((_a)>(_b)?(_a):(_b))
-# define OP_CLAMP(_lo,_x,_hi) (OP_MAX(_lo,OP_MIN(_x,_hi)))
-
-/*Advance a file offset by the given amount, clamping against OP_INT64_MAX.
- This is used to advance a known offset by things like OP_CHUNK_SIZE or
- OP_PAGE_SIZE_MAX, while making sure to avoid signed overflow.
- It assumes that both _offset and _amount are non-negative.*/
-#define OP_ADV_OFFSET(_offset,_amount) \
- (OP_MIN(_offset,OP_INT64_MAX-(_amount))+(_amount))
-
-/*The maximum channel count for any mapping we'll actually decode.*/
-# define OP_NCHANNELS_MAX (8)
-
-/*Initial state.*/
-# define OP_NOTOPEN (0)
-/*We've found the first Opus stream in the first link.*/
-# define OP_PARTOPEN (1)
-# define OP_OPENED (2)
-/*We've found the first Opus stream in the current link.*/
-# define OP_STREAMSET (3)
-/*We've initialized the decoder for the chosen Opus stream in the current
- link.*/
-# define OP_INITSET (4)
-
-/*Information cached for a single link in a chained Ogg Opus file.
- We choose the first Opus stream encountered in each link to play back (and
- require at least one).*/
-struct OggOpusLink{
- /*The byte offset of the first header page in this link.*/
- opus_int64 offset;
- /*The byte offset of the first data page from the chosen Opus stream in this
- link (after the headers).*/
- opus_int64 data_offset;
- /*The byte offset of the last page from the chosen Opus stream in this link.
- This is used when seeking to ensure we find a page before the last one, so
- that end-trimming calculations work properly.
- This is only valid for seekable sources.*/
- opus_int64 end_offset;
- /*The granule position of the last sample.
- This is only valid for seekable sources.*/
- ogg_int64_t pcm_end;
- /*The granule position before the first sample.*/
- ogg_int64_t pcm_start;
- /*The serial number.*/
- ogg_uint32_t serialno;
- /*The contents of the info header.*/
- OpusHead head;
- /*The contents of the comment header.*/
- OpusTags tags;
-};
-
-struct OggOpusFile{
- /*The callbacks used to access the data source.*/
- OpusFileCallbacks callbacks;
- /*A FILE *, memory bufer, etc.*/
- void *source;
- /*Whether or not we can seek with this data source.*/
- int seekable;
- /*The number of links in this chained Ogg Opus file.*/
- int nlinks;
- /*The cached information from each link in a chained Ogg Opus file.
- If source isn't seekable (e.g., it's a pipe), only the current link
- appears.*/
- OggOpusLink *links;
- /*The number of serial numbers from a single link.*/
- int nserialnos;
- /*The capacity of the list of serial numbers from a single link.*/
- int cserialnos;
- /*Storage for the list of serial numbers from a single link.*/
- ogg_uint32_t *serialnos;
- /*This is the current offset of the data processed by the ogg_sync_state.
- After a seek, this should be set to the target offset so that we can track
- the byte offsets of subsequent pages.
- After a call to op_get_next_page(), this will point to the first byte after
- that page.*/
- opus_int64 offset;
- /*The total size of this data source, or -1 if it's unseekable.*/
- opus_int64 end;
- /*Used to locate pages in the data source.*/
- ogg_sync_state oy;
- /*One of OP_NOTOPEN, OP_PARTOPEN, OP_OPENED, OP_STREAMSET, OP_INITSET.*/
- int ready_state;
- /*The current link being played back.*/
- int cur_link;
- /*The number of decoded samples to discard from the start of decoding.*/
- opus_int32 cur_discard_count;
- /*The granule position of the previous packet (current packet start time).*/
- ogg_int64_t prev_packet_gp;
- /*The number of bytes read since the last bitrate query, including framing.*/
- opus_int64 bytes_tracked;
- /*The number of samples decoded since the last bitrate query.*/
- ogg_int64_t samples_tracked;
- /*Takes physical pages and welds them into a logical stream of packets.*/
- ogg_stream_state os;
- /*Re-timestamped packets from a single page.
- Buffering these relies on the undocumented libogg behavior that ogg_packet
- pointers remain valid until the next page is submitted to the
- ogg_stream_state they came from.*/
- ogg_packet op[255];
- /*The index of the next packet to return.*/
- int op_pos;
- /*The total number of packets available.*/
- int op_count;
- /*Central working state for the packet-to-PCM decoder.*/
- OpusMSDecoder *od;
- /*The application-provided packet decode callback.*/
- op_decode_cb_func decode_cb;
- /*The application-provided packet decode callback context.*/
- void *decode_cb_ctx;
- /*The stream count used to initialize the decoder.*/
- int od_stream_count;
- /*The coupled stream count used to initialize the decoder.*/
- int od_coupled_count;
- /*The channel count used to initialize the decoder.*/
- int od_channel_count;
- /*The channel mapping used to initialize the decoder.*/
- unsigned char od_mapping[OP_NCHANNELS_MAX];
- /*The buffered data for one decoded packet.*/
- op_sample *od_buffer;
- /*The current position in the decoded buffer.*/
- int od_buffer_pos;
- /*The number of valid samples in the decoded buffer.*/
- int od_buffer_size;
- /*The type of gain offset to apply.
- One of OP_HEADER_GAIN, OP_TRACK_GAIN, or OP_ABSOLUTE_GAIN.*/
- int gain_type;
- /*The offset to apply to the gain.*/
- opus_int32 gain_offset_q8;
- /*Internal state for soft clipping and dithering float->short output.*/
-#if !defined(OP_FIXED_POINT)
-# if defined(OP_SOFT_CLIP)
- float clip_state[OP_NCHANNELS_MAX];
-# endif
- float dither_a[OP_NCHANNELS_MAX*4];
- float dither_b[OP_NCHANNELS_MAX*4];
- opus_uint32 dither_seed;
- int dither_mute;
- int dither_disabled;
- /*The number of channels represented by the internal state.
- This gets set to 0 whenever anything that would prevent state propagation
- occurs (switching between the float/short APIs, or between the
- stereo/multistream APIs).*/
- int state_channel_count;
-#endif
-};
-
-int op_strncasecmp(const char *_a,const char *_b,int _n);
-
-#endif
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