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FFmpeg
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sanm.c File Reference
#include "avcodec.h"#include "copy_block.h"#include "bytestream.h"#include "internal.h"#include "libavutil/bswap.h"#include "libavutil/imgutils.h"#include "sanm_data.h"#include "libavutil/avassert.h"
Include dependency graph for sanm.c:
Go to the source code of this file.
Data Structures | |
| struct | SANMVideoContext |
| struct | SANMFrameHeader |
Macros | |
| #define | NGLYPHS 256 |
Typedefs | |
| typedef int(* | frm_decoder) (SANMVideoContext *ctx) |
Enumerations | |
| enum | GlyphEdge { LEFT_EDGE, TOP_EDGE, RIGHT_EDGE, BOTTOM_EDGE, NO_EDGE } |
| enum | GlyphDir { DIR_LEFT, DIR_UP, DIR_RIGHT, DIR_DOWN, NO_DIR } |
Functions | |
| static enum GlyphEdge | which_edge (int x, int y, int edge_size) |
| Return enum GlyphEdge of box where point (x, y) lies. More... | |
| static enum GlyphDir | which_direction (enum GlyphEdge edge0, enum GlyphEdge edge1) |
| static void | interp_point (int8_t *points, int x0, int y0, int x1, int y1, int pos, int npoints) |
| Interpolate two points. More... | |
| static void | make_glyphs (int8_t *pglyphs, const int8_t *xvec, const int8_t *yvec, const int side_length) |
| Construct glyphs by iterating through vectors coordinates. More... | |
| static void | init_sizes (SANMVideoContext *ctx, int width, int height) |
| static void | destroy_buffers (SANMVideoContext *ctx) |
| static av_cold int | init_buffers (SANMVideoContext *ctx) |
| static void | rotate_bufs (SANMVideoContext *ctx, int rotate_code) |
| static av_cold int | decode_init (AVCodecContext *avctx) |
| static av_cold int | decode_end (AVCodecContext *avctx) |
| static int | rle_decode (SANMVideoContext *ctx, uint8_t *dst, const int out_size) |
| static int | old_codec1 (SANMVideoContext *ctx, int top, int left, int width, int height) |
| static void | codec37_mv (uint8_t *dst, const uint8_t *src, int height, int stride, int x, int y) |
| static int | old_codec37 (SANMVideoContext *ctx, int top, int left, int width, int height) |
| static int | process_block (SANMVideoContext *ctx, uint8_t *dst, uint8_t *prev1, uint8_t *prev2, int stride, int tbl, int size) |
| static int | old_codec47 (SANMVideoContext *ctx, int top, int left, int width, int height) |
| static int | process_frame_obj (SANMVideoContext *ctx) |
| static int | decode_0 (SANMVideoContext *ctx) |
| static int | decode_nop (SANMVideoContext *ctx) |
| static void | copy_block (uint16_t *pdest, uint16_t *psrc, int block_size, int pitch) |
| static void | fill_block (uint16_t *pdest, uint16_t color, int block_size, int pitch) |
| static int | draw_glyph (SANMVideoContext *ctx, uint16_t *dst, int index, uint16_t fg_color, uint16_t bg_color, int block_size, int pitch) |
| static int | opcode_0xf7 (SANMVideoContext *ctx, int cx, int cy, int block_size, int pitch) |
| static int | opcode_0xf8 (SANMVideoContext *ctx, int cx, int cy, int block_size, int pitch) |
| static int | good_mvec (SANMVideoContext *ctx, int cx, int cy, int mx, int my, int block_size) |
| static int | codec2subblock (SANMVideoContext *ctx, int cx, int cy, int blk_size) |
| static int | decode_2 (SANMVideoContext *ctx) |
| static int | decode_3 (SANMVideoContext *ctx) |
| static int | decode_4 (SANMVideoContext *ctx) |
| static int | decode_5 (SANMVideoContext *ctx) |
| static int | decode_6 (SANMVideoContext *ctx) |
| static int | decode_8 (SANMVideoContext *ctx) |
| static int | read_frame_header (SANMVideoContext *ctx, SANMFrameHeader *hdr) |
| static void | fill_frame (uint16_t *pbuf, int buf_size, uint16_t color) |
| static int | copy_output (SANMVideoContext *ctx, SANMFrameHeader *hdr) |
| static int | decode_frame (AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *pkt) |
Variables | |
| static const frm_decoder | v1_decoders [] |
| AVCodec | ff_sanm_decoder |
Macro Definition Documentation
| #define NGLYPHS 256 |
Definition at line 34 of file sanm.c.
Referenced by draw_glyph().
Typedef Documentation
| typedef int(* frm_decoder) (SANMVideoContext *ctx) |
Enumeration Type Documentation
| enum GlyphDir |
| enum GlyphEdge |
Function Documentation
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Definition at line 916 of file sanm.c.
Referenced by decode_2().
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Definition at line 379 of file sanm.c.
Referenced by old_codec37().
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Definition at line 791 of file sanm.c.
Referenced by codec2subblock().
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Definition at line 1140 of file sanm.c.
Referenced by decode_frame().
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Definition at line 227 of file sanm.c.
Referenced by decode_end(), and init_buffers().
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Definition at line 820 of file sanm.c.
Referenced by opcode_0xf7(), and opcode_0xf8().
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Definition at line 810 of file sanm.c.
Referenced by codec2subblock().
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Definition at line 1134 of file sanm.c.
Referenced by decode_frame().
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Definition at line 900 of file sanm.c.
Referenced by codec2subblock().
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Definition at line 239 of file sanm.c.
Referenced by decode_init(), and process_frame_obj().
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Definition at line 214 of file sanm.c.
Referenced by decode_init(), and process_frame_obj().
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Construct glyphs by iterating through vectors coordinates.
- Parameters
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pglyphs pointer to table where glyphs are stored xvec pointer to x component of vectors coordinates yvec pointer to y component of vectors coordinates side_length glyph width/height.
Definition at line 162 of file sanm.c.
Referenced by decode_init().
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Definition at line 332 of file sanm.c.
Referenced by process_frame_obj().
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Definition at line 398 of file sanm.c.
Referenced by process_frame_obj().
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Definition at line 635 of file sanm.c.
Referenced by process_frame_obj().
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Definition at line 841 of file sanm.c.
Referenced by codec2subblock().
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Definition at line 872 of file sanm.c.
Referenced by codec2subblock().
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Definition at line 545 of file sanm.c.
Referenced by old_codec47().
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Definition at line 725 of file sanm.c.
Referenced by decode_frame().
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Definition at line 1093 of file sanm.c.
Referenced by decode_frame().
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Definition at line 306 of file sanm.c.
Referenced by decode_5(), decode_8(), old_codec37(), and old_codec47().
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Definition at line 255 of file sanm.c.
Referenced by decode_frame(), and old_codec37().
Definition at line 116 of file sanm.c.
Referenced by make_glyphs().
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Return enum GlyphEdge of box where point (x, y) lies.
- Parameters
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x x point coordinate y y point coordinate edge_size box width/height.
Definition at line 99 of file sanm.c.
Referenced by make_glyphs().
Variable Documentation
| AVCodec ff_sanm_decoder |
Initial value:
= {
.name = "sanm",
.type = AVMEDIA_TYPE_VIDEO,
.id = AV_CODEC_ID_SANM,
.priv_data_size = sizeof(SANMVideoContext),
.init = decode_init,
.close = decode_end,
.decode = decode_frame,
.capabilities = CODEC_CAP_DR1,
.long_name = NULL_IF_CONFIG_SMALL("LucasArts SMUSH video"),
}
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *pkt)
Definition: sanm.c:1162
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: libavcodec/avcodec.h:743
Definition: sanm.c:36
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: libavutil/internal.h:123
Definition: libavcodec/avcodec.h:286
Definition: avutil.h:143
static int decode(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: crystalhd.c:868
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