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Linshizhi
ffmpeg.wasm-core
Commits
8ab42021
Commit
8ab42021
authored
Dec 13, 2012
by
Anton Khirnov
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ivi_common: make some functions and tables static.
parent
4e5a8878
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2 changed files
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111 additions
and
128 deletions
+111
-128
ivi_common.c
libavcodec/ivi_common.c
+111
-54
ivi_common.h
libavcodec/ivi_common.h
+0
-74
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libavcodec/ivi_common.c
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8ab42021
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libavcodec/ivi_common.h
View file @
8ab42021
...
@@ -63,9 +63,6 @@ enum {
...
@@ -63,9 +63,6 @@ enum {
IVI_BLK_HUFF
=
1
/// Huffman table is used for coding blocks
IVI_BLK_HUFF
=
1
/// Huffman table is used for coding blocks
};
};
extern
VLC
ff_ivi_mb_vlc_tabs
[
8
];
///< static macroblock Huffman tables
extern
VLC
ff_ivi_blk_vlc_tabs
[
8
];
///< static block Huffman tables
/**
/**
* Common scan patterns (defined in ivi_common.c)
* Common scan patterns (defined in ivi_common.c)
...
@@ -277,17 +274,6 @@ static inline int ivi_scale_mv(int mv, int mv_scale)
...
@@ -277,17 +274,6 @@ static inline int ivi_scale_mv(int mv, int mv_scale)
return
(
mv
+
(
mv
>
0
)
+
(
mv_scale
-
1
))
>>
mv_scale
;
return
(
mv
+
(
mv
>
0
)
+
(
mv_scale
-
1
))
>>
mv_scale
;
}
}
/**
* Generate a huffman codebook from the given descriptor
* and convert it into the Libav VLC table.
*
* @param[in] cb pointer to codebook descriptor
* @param[out] vlc where to place the generated VLC table
* @param[in] flag flag: 1 - for static or 0 for dynamic tables
* @return result code: 0 - OK, -1 = error (invalid codebook descriptor)
*/
int
ff_ivi_create_huff_from_desc
(
const
IVIHuffDesc
*
cb
,
VLC
*
vlc
,
int
flag
);
/**
/**
* Initialize static codes used for macroblock and block decoding.
* Initialize static codes used for macroblock and block decoding.
*/
*/
...
@@ -307,23 +293,6 @@ void ff_ivi_init_static_vlc(void);
...
@@ -307,23 +293,6 @@ void ff_ivi_init_static_vlc(void);
int
ff_ivi_dec_huff_desc
(
GetBitContext
*
gb
,
int
desc_coded
,
int
which_tab
,
int
ff_ivi_dec_huff_desc
(
GetBitContext
*
gb
,
int
desc_coded
,
int
which_tab
,
IVIHuffTab
*
huff_tab
,
AVCodecContext
*
avctx
);
IVIHuffTab
*
huff_tab
,
AVCodecContext
*
avctx
);
/**
* Compare two huffman codebook descriptors.
*
* @param[in] desc1 ptr to the 1st descriptor to compare
* @param[in] desc2 ptr to the 2nd descriptor to compare
* @return comparison result: 0 - equal, 1 - not equal
*/
int
ff_ivi_huff_desc_cmp
(
const
IVIHuffDesc
*
desc1
,
const
IVIHuffDesc
*
desc2
);
/**
* Copy huffman codebook descriptors.
*
* @param[out] dst ptr to the destination descriptor
* @param[in] src ptr to the source descriptor
*/
void
ff_ivi_huff_desc_copy
(
IVIHuffDesc
*
dst
,
const
IVIHuffDesc
*
src
);
/**
/**
* Initialize planes (prepares descriptors, allocates buffers etc).
* Initialize planes (prepares descriptors, allocates buffers etc).
*
*
...
@@ -333,13 +302,6 @@ void ff_ivi_huff_desc_copy(IVIHuffDesc *dst, const IVIHuffDesc *src);
...
@@ -333,13 +302,6 @@ void ff_ivi_huff_desc_copy(IVIHuffDesc *dst, const IVIHuffDesc *src);
*/
*/
int
ff_ivi_init_planes
(
IVIPlaneDesc
*
planes
,
const
IVIPicConfig
*
cfg
);
int
ff_ivi_init_planes
(
IVIPlaneDesc
*
planes
,
const
IVIPicConfig
*
cfg
);
/**
* Free planes, bands and macroblocks buffers.
*
* @param[in] planes pointer to the array of the plane descriptors
*/
void
ff_ivi_free_buffers
(
IVIPlaneDesc
*
planes
);
/**
/**
* Initialize tile and macroblock descriptors.
* Initialize tile and macroblock descriptors.
*
*
...
@@ -350,42 +312,6 @@ void ff_ivi_free_buffers(IVIPlaneDesc *planes);
...
@@ -350,42 +312,6 @@ void ff_ivi_free_buffers(IVIPlaneDesc *planes);
*/
*/
int
ff_ivi_init_tiles
(
IVIPlaneDesc
*
planes
,
int
tile_width
,
int
tile_height
);
int
ff_ivi_init_tiles
(
IVIPlaneDesc
*
planes
,
int
tile_width
,
int
tile_height
);
/**
* Decode size of the tile data.
* The size is stored as a variable-length field having the following format:
* if (tile_data_size < 255) than this field is only one byte long
* if (tile_data_size >= 255) than this field four is byte long: 0xFF X1 X2 X3
* where X1-X3 is size of the tile data
*
* @param[in,out] gb the GetBit context
* @return size of the tile data in bytes
*/
int
ff_ivi_dec_tile_data_size
(
GetBitContext
*
gb
);
/**
* Decode block data:
* extract huffman-coded transform coefficients from the bitstream,
* dequantize them, apply inverse transform and motion compensation
* in order to reconstruct the picture.
*
* @param[in,out] gb the GetBit context
* @param[in] band pointer to the band descriptor
* @param[in] tile pointer to the tile descriptor
* @return result code: 0 - OK, -1 = error (corrupted blocks data)
*/
int
ff_ivi_decode_blocks
(
GetBitContext
*
gb
,
IVIBandDesc
*
band
,
IVITile
*
tile
);
/**
* Convert and output the current plane.
* This conversion is done by adding back the bias value of 128
* (subtracted in the encoder) and clipping the result.
*
* @param[in] plane pointer to the descriptor of the plane being processed
* @param[out] dst pointer to the buffer receiving converted pixels
* @param[in] dst_pitch pitch for moving to the next y line
*/
void
ff_ivi_output_plane
(
IVIPlaneDesc
*
plane
,
uint8_t
*
dst
,
int
dst_pitch
);
int
ff_ivi_decode_frame
(
AVCodecContext
*
avctx
,
void
*
data
,
int
*
got_frame
,
int
ff_ivi_decode_frame
(
AVCodecContext
*
avctx
,
void
*
data
,
int
*
got_frame
,
AVPacket
*
avpkt
);
AVPacket
*
avpkt
);
av_cold
int
ff_ivi_decode_close
(
AVCodecContext
*
avctx
);
av_cold
int
ff_ivi_decode_close
(
AVCodecContext
*
avctx
);
...
...
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