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Add AVCodecContext.lpc_type and Add AVCodecContext.lpc_passes fields.

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Add AVLPCType enum.
Deprecate AVCodecContext.use_lpc.

Originally committed as revision 24199 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Justin Ruggles
2010-07-11 16:56:20 +00:00
parent 31769dad7d
commit 23940f1405
8 changed files with 129 additions and 38 deletions
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31
libavcodec/avcodec.h
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@@ -30,7 +30,7 @@
#include "libavutil/avutil.h"
#define LIBAVCODEC_VERSION_MAJOR 52
#define LIBAVCODEC_VERSION_MINOR 82
#define LIBAVCODEC_VERSION_MINOR 83
#define LIBAVCODEC_VERSION_MICRO 0
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
@@ -526,6 +526,18 @@ enum AVChromaLocation{
AVCHROMA_LOC_NB , ///< Not part of ABI
};
/**
* LPC analysis type
*/
enum AVLPCType {
AV_LPC_TYPE_DEFAULT = -1, ///< use the codec default LPC type
AV_LPC_TYPE_NONE = 0, ///< do not use LPC prediction or use all zero coefficients
AV_LPC_TYPE_FIXED = 1, ///< fixed LPC coefficients
AV_LPC_TYPE_LEVINSON = 2, ///< Levinson-Durbin recursion
AV_LPC_TYPE_CHOLESKY = 3, ///< Cholesky factorization
AV_LPC_TYPE_NB , ///< Not part of ABI
};
typedef struct RcOverride{
int start_frame;
int end_frame;
@@ -2413,12 +2425,15 @@ typedef struct AVCodecContext {
int compression_level;
#define FF_COMPRESSION_DEFAULT -1
#if LIBAVCODEC_VERSION_MAJOR < 53
/**
* Sets whether to use LPC mode - used by FLAC encoder.
* - encoding: Set by user.
* - decoding: unused
* @deprecated Deprecated in favor of lpc_type and lpc_passes.
*/
int use_lpc;
#endif
/**
* LPC coefficient precision - used by FLAC encoder
@@ -2672,6 +2687,20 @@ typedef struct AVCodecContext {
float crf_max;
int log_level_offset;
/**
* Determines which LPC analysis algorithm to use.
* - encoding: Set by user
* - decoding: unused
*/
enum AVLPCType lpc_type;
/**
* Number of passes to use for Cholesky factorization during LPC analysis
* - encoding: Set by user
* - decoding: unused
*/
int lpc_passes;
} AVCodecContext;
/**