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Code Issues Releases Wiki Activity

Remove 8BPS, MsRLE, MsVideo1, RPZA, SMC

Browse Source 
These codecs are now in libavcodec


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@11676 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
rtognimp 2003-12-23 21:06:56 +00:00
parent 651aec8776
commit 1339538d1a
8 changed files with 0 additions and 2026 deletions
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394
libmpcodecs/native/msvidc.c
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@ -1,394 +0,0 @@
/*
Microsoft Video 1 Decoder
(C) 2001 Mike Melanson
The description of the algorithm you can read here:
http://www.pcisys.net/~melanson/codecs/
32bpp support by Alex Beregszaszi
*/
#include "config.h"
#include "bswap.h"
#define quad quad_m
#define LE_16(x) (le2me_16(*(unsigned short *)(x)))
#define DECODE_BGR555_TO_BGR888(x) \
x.c1_b = (x.c1 >> 7) & 0xF8; \
x.c1_g = (x.c1 >> 2) & 0xF8; \
x.c1_r = (x.c1 << 3) & 0xF8; \
x.c2_b = (x.c2 >> 7) & 0xF8; \
x.c2_g = (x.c2 >> 2) & 0xF8; \
x.c2_r = (x.c2 << 3) & 0xF8;
#define DECODE_PALETTE_TO_BGR888(x) \
x.c1_b = palette_map[x.c1 * 4 + 2]; \
x.c1_g = palette_map[x.c1 * 4 + 1]; \
x.c1_r = palette_map[x.c1 * 4 + 0]; \
x.c2_b = palette_map[x.c2 * 4 + 2]; \
x.c2_g = palette_map[x.c2 * 4 + 1]; \
x.c2_r = palette_map[x.c2 * 4 + 0];
struct
{
unsigned short c1, c2;
unsigned char c1_r, c1_g, c1_b;
unsigned char c2_r, c2_g, c2_b;
} quad[2][2];
void AVI_Decode_Video1_16(
char *encoded,
int encoded_size,
char *decoded,
int width,
int height,
int bytes_per_pixel)
{
int block_ptr, pixel_ptr;
int total_blocks;
int pixel_x, pixel_y; // pixel width and height iterators
int block_x, block_y; // block width and height iterators
int blocks_wide, blocks_high; // width and height in 4x4 blocks
int block_inc;
int row_dec;
// decoding parameters
int stream_ptr;
unsigned char byte_a, byte_b;
unsigned short flags;
int skip_blocks;
stream_ptr = 0;
skip_blocks = 0;
blocks_wide = width / 4;
blocks_high = height / 4;
total_blocks = blocks_wide * blocks_high;
block_inc = 4 * bytes_per_pixel;
row_dec = (width + 4) * bytes_per_pixel;
for (block_y = blocks_high; block_y > 0; block_y--)
{
block_ptr = ((block_y * 4) - 1) * (width * bytes_per_pixel);
for (block_x = blocks_wide; block_x > 0; block_x--)
{
// check if this block should be skipped
if (skip_blocks)
{
block_ptr += block_inc;
skip_blocks--;
total_blocks--;
continue;
}
pixel_ptr = block_ptr;
// get the next two bytes in the encoded data stream
byte_a = encoded[stream_ptr++];
byte_b = encoded[stream_ptr++];
// check if the decode is finished
if ((byte_a == 0) && (byte_b == 0) && (total_blocks == 0))
return;
// check if this is a skip code
else if ((byte_b & 0xFC) == 0x84)
{
// but don't count the current block
skip_blocks = ((byte_b - 0x84) << 8) + byte_a - 1;
}
// check if this is in the 2- or 8-color classes
else if (byte_b < 0x80)
{
flags = (byte_b << 8) | byte_a;
quad[0][0].c1 = LE_16(&encoded[stream_ptr]);
stream_ptr += 2;
quad[0][0].c2 = LE_16(&encoded[stream_ptr]);
stream_ptr += 2;
DECODE_BGR555_TO_BGR888(quad[0][0]);
if (quad[0][0].c1 & 0x8000)
{
// 8-color encoding
quad[1][0].c1 = LE_16(&encoded[stream_ptr]);
stream_ptr += 2;
quad[1][0].c2 = LE_16(&encoded[stream_ptr]);
stream_ptr += 2;
quad[0][1].c1 = LE_16(&encoded[stream_ptr]);
stream_ptr += 2;
quad[0][1].c2 = LE_16(&encoded[stream_ptr]);
stream_ptr += 2;
quad[1][1].c1 = LE_16(&encoded[stream_ptr]);
stream_ptr += 2;
quad[1][1].c2 = LE_16(&encoded[stream_ptr]);
stream_ptr += 2;
DECODE_BGR555_TO_BGR888(quad[0][1]);
DECODE_BGR555_TO_BGR888(quad[1][0]);
DECODE_BGR555_TO_BGR888(quad[1][1]);
for (pixel_y = 0; pixel_y < 4; pixel_y++)
{
for (pixel_x = 0; pixel_x < 4; pixel_x++)
{
if (flags & 1)
{
decoded[pixel_ptr++] = quad[pixel_x >> 1][pixel_y >> 1].c1_r;
decoded[pixel_ptr++] = quad[pixel_x >> 1][pixel_y >> 1].c1_g;
decoded[pixel_ptr++] = quad[pixel_x >> 1][pixel_y >> 1].c1_b;
if (bytes_per_pixel == 4) /* 32bpp */
pixel_ptr++;
}
else
{
decoded[pixel_ptr++] = quad[pixel_x >> 1][pixel_y >> 1].c2_r;
decoded[pixel_ptr++] = quad[pixel_x >> 1][pixel_y >> 1].c2_g;
decoded[pixel_ptr++] = quad[pixel_x >> 1][pixel_y >> 1].c2_b;
if (bytes_per_pixel == 4) /* 32bpp */
pixel_ptr++;
}
// get the next flag ready to go
flags >>= 1;
}
pixel_ptr -= row_dec;
}
}
else
{
// 2-color encoding
for (pixel_y = 0; pixel_y < 4; pixel_y++)
{
for (pixel_x = 0; pixel_x < 4; pixel_x++)
{
if (flags & 1)
{
decoded[pixel_ptr++] = quad[0][0].c1_r;
decoded[pixel_ptr++] = quad[0][0].c1_g;
decoded[pixel_ptr++] = quad[0][0].c1_b;
if (bytes_per_pixel == 4) /* 32bpp */
pixel_ptr++;
}
else
{
decoded[pixel_ptr++] = quad[0][0].c2_r;
decoded[pixel_ptr++] = quad[0][0].c2_g;
decoded[pixel_ptr++] = quad[0][0].c2_b;
if (bytes_per_pixel == 4) /* 32bpp */
pixel_ptr++;
}
// get the next flag ready to go
flags >>= 1;
}
pixel_ptr -= row_dec;
}
}
}
// otherwise, it's a 1-color block
else
{
quad[0][0].c1 = (byte_b << 8) | byte_a;
DECODE_BGR555_TO_BGR888(quad[0][0]);
for (pixel_y = 0; pixel_y < 4; pixel_y++)
{
for (pixel_x = 0; pixel_x < 4; pixel_x++)
{
decoded[pixel_ptr++] = quad[0][0].c1_r;
decoded[pixel_ptr++] = quad[0][0].c1_g;
decoded[pixel_ptr++] = quad[0][0].c1_b;
if (bytes_per_pixel == 4) /* 32bpp */
pixel_ptr++;
}
pixel_ptr -= row_dec;
}
}
block_ptr += block_inc;
total_blocks--;
}
}
}
void AVI_Decode_Video1_8(
char *encoded,
int encoded_size,
char *decoded,
int width,
int height,
unsigned char *palette_map,
int bytes_per_pixel)
{
int block_ptr, pixel_ptr;
int total_blocks;
int pixel_x, pixel_y; // pixel width and height iterators
int block_x, block_y; // block width and height iterators
int blocks_wide, blocks_high; // width and height in 4x4 blocks
int block_inc;
int row_dec;
// decoding parameters
int stream_ptr;
unsigned char byte_a, byte_b;
unsigned short flags;
int skip_blocks;
stream_ptr = 0;
skip_blocks = 0;
blocks_wide = width / 4;
blocks_high = height / 4;
total_blocks = blocks_wide * blocks_high;
block_inc = 4 * bytes_per_pixel;
row_dec = (width + 4) * bytes_per_pixel;
for (block_y = blocks_high; block_y > 0; block_y--)
{
block_ptr = ((block_y * 4) - 1) * (width * bytes_per_pixel);
for (block_x = blocks_wide; block_x > 0; block_x--)
{
// check if this block should be skipped
if (skip_blocks)
{
block_ptr += block_inc;
skip_blocks--;
total_blocks--;
continue;
}
pixel_ptr = block_ptr;
// get the next two bytes in the encoded data stream
byte_a = encoded[stream_ptr++];
byte_b = encoded[stream_ptr++];
// check if the decode is finished
if ((byte_a == 0) && (byte_b == 0) && (total_blocks == 0))
return;
// check if this is a skip code
else if ((byte_b & 0xFC) == 0x84)
{
// but don't count the current block
skip_blocks = ((byte_b - 0x84) << 8) + byte_a - 1;
}
// check if this is a 2-color block
else if (byte_b < 0x80)
{
flags = (byte_b << 8) | byte_a;
quad[0][0].c1 = (unsigned char)encoded[stream_ptr++];
quad[0][0].c2 = (unsigned char)encoded[stream_ptr++];
DECODE_PALETTE_TO_BGR888(quad[0][0]);
// 2-color encoding
for (pixel_y = 0; pixel_y < 4; pixel_y++)
{
for (pixel_x = 0; pixel_x < 4; pixel_x++)
{
if (flags & 1)
{
decoded[pixel_ptr++] = quad[0][0].c1_r;
decoded[pixel_ptr++] = quad[0][0].c1_g;
decoded[pixel_ptr++] = quad[0][0].c1_b;
if (bytes_per_pixel == 4) /* 32bpp */
pixel_ptr++;
}
else
{
decoded[pixel_ptr++] = quad[0][0].c2_r;
decoded[pixel_ptr++] = quad[0][0].c2_g;
decoded[pixel_ptr++] = quad[0][0].c2_b;
if (bytes_per_pixel == 4) /* 32bpp */
pixel_ptr++;
}
// get the next flag ready to go
flags >>= 1;
}
pixel_ptr -= row_dec;
}
}
// check if it's an 8-color block
else if (byte_b >= 0x90)
{
flags = (byte_b << 8) | byte_a;
quad[0][0].c1 = (unsigned char)encoded[stream_ptr++];
quad[0][0].c2 = (unsigned char)encoded[stream_ptr++];
quad[1][0].c1 = (unsigned char)encoded[stream_ptr++];
quad[1][0].c2 = (unsigned char)encoded[stream_ptr++];
quad[0][1].c1 = (unsigned char)encoded[stream_ptr++];
quad[0][1].c2 = (unsigned char)encoded[stream_ptr++];
quad[1][1].c1 = (unsigned char)encoded[stream_ptr++];
quad[1][1].c2 = (unsigned char)encoded[stream_ptr++];
DECODE_PALETTE_TO_BGR888(quad[0][0]);
DECODE_PALETTE_TO_BGR888(quad[0][1]);
DECODE_PALETTE_TO_BGR888(quad[1][0]);
DECODE_PALETTE_TO_BGR888(quad[1][1]);
for (pixel_y = 0; pixel_y < 4; pixel_y++)
{
for (pixel_x = 0; pixel_x < 4; pixel_x++)
{
if (flags & 1)
{
decoded[pixel_ptr++] = quad[pixel_x >> 1][pixel_y >> 1].c1_r;
decoded[pixel_ptr++] = quad[pixel_x >> 1][pixel_y >> 1].c1_g;
decoded[pixel_ptr++] = quad[pixel_x >> 1][pixel_y >> 1].c1_b;
if (bytes_per_pixel == 4) /* 32bpp */
pixel_ptr++;
}
else
{
decoded[pixel_ptr++] = quad[pixel_x >> 1][pixel_y >> 1].c2_r;
decoded[pixel_ptr++] = quad[pixel_x >> 1][pixel_y >> 1].c2_g;
decoded[pixel_ptr++] = quad[pixel_x >> 1][pixel_y >> 1].c2_b;
if (bytes_per_pixel == 4) /* 32bpp */
pixel_ptr++;
}
// get the next flag ready to go
flags >>= 1;
}
pixel_ptr -= row_dec;
}
}
// otherwise, it's a 1-color block
else
{
// init c2 along with c1 just so c2 is a known value for macro
quad[0][0].c1 = quad[0][0].c2 = byte_a;
DECODE_PALETTE_TO_BGR888(quad[0][0]);
for (pixel_y = 0; pixel_y < 4; pixel_y++)
{
for (pixel_x = 0; pixel_x < 4; pixel_x++)
{
decoded[pixel_ptr++] = quad[0][0].c1_r;
decoded[pixel_ptr++] = quad[0][0].c1_g;
decoded[pixel_ptr++] = quad[0][0].c1_b;
if (bytes_per_pixel == 4) /* 32bpp */
pixel_ptr++;
}
pixel_ptr -= row_dec;
}
}
block_ptr += block_inc;
total_blocks--;
}
}
}

262
libmpcodecs/native/qtrpza.c
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/*
*
* Apple Video (rpza) QuickTime Decoder for Mplayer
* (c) 2002 Roberto Togni
*
* Fourcc: rpza, azpr
*
* Some code comes from qtsmc.c by Mike Melanson
*
* A description of the decoding algorithm can be found here:
* http://www.pcisys.net/~melanson/codecs/
*/
#include "config.h"
#include "bswap.h"
#include "mp_msg.h"
#define BE_16(x) (be2me_16(*(unsigned short *)(x)))
#define BE_32(x) (be2me_32(*(unsigned int *)(x)))
#define ADVANCE_BLOCK() \
{ \
pixel_ptr += block_x_inc; \
if (pixel_ptr >= (width * bytes_per_pixel)) \
{ \
pixel_ptr = 0; \
row_ptr += block_y_inc * 4; \
} \
total_blocks--; \
if (total_blocks < 0) \
{ \
mp_msg(MSGT_DECVIDEO, MSGL_WARN, "block counter just went negative (this should not happen)\n"); \
return; \
} \
}
#define PAINT_CURRENT_PIXEL(r, g, b, color) \
{ \
if (bytes_per_pixel == 2) { \
(*(unsigned short*)(&decoded[block_ptr])) = color & 0x7fff; \
block_ptr += 2; \
} else { \
decoded[block_ptr++] = (b); \
decoded[block_ptr++] = (g); \
decoded[block_ptr++] = (r); \
if (bytes_per_pixel == 4) /* 32bpp */ \
block_ptr++; \
} \
}
#define COLOR_FIX(col_out, col_in) (col_out) = ((col_in) << 3) | ((col_in) >> 2)
#define COLOR_TO_RGB(r, g, b, color) \
{ \
if (bytes_per_pixel != 2) { \
unsigned short tmp; \
tmp = (color >> 10) & 0x1f; \
COLOR_FIX (r, tmp); \
tmp = (color >> 5) & 0x1f; \
COLOR_FIX (g, tmp); \
tmp = color & 0x1f; \
COLOR_FIX (b, tmp); \
} \
}
#define COLORAB_TO_RGB4(rgb4, color4, colorA, colorB) \
{ \
unsigned short ta, tb, tt; \
if (bytes_per_pixel != 2) { \
ta = (colorA >> 10) & 0x1f; \
tb = (colorB >> 10) & 0x1f; \
COLOR_FIX (rgb4[3][0], ta); \
COLOR_FIX (rgb4[0][0], tb); \
tt = (11 * ta + 21 * tb) >> 5; \
COLOR_FIX (rgb4[1][0], tt); \
tt = (21 * ta + 11 * tb) >> 5; \
COLOR_FIX (rgb4[2][0], tt); \
ta = (colorA >> 5) & 0x1f; \
tb = (colorB >> 5) & 0x1f; \
COLOR_FIX (rgb4[3][1], ta); \
COLOR_FIX (rgb4[0][1], tb); \
tt = (11 * ta + 21 * tb) >> 5; \
COLOR_FIX (rgb4[1][1], tt); \
tt = (21 * ta + 11 * tb) >> 5; \
COLOR_FIX (rgb4[2][1], tt); \
ta = colorA & 0x1f; \
tb = colorB & 0x1f; \
COLOR_FIX (rgb4[3][2], ta); \
COLOR_FIX (rgb4[0][2], tb); \
tt = (11 * ta + 21 * tb) >> 5; \
COLOR_FIX (rgb4[1][2], tt); \
tt = (21 * ta + 11 * tb) >> 5; \
COLOR_FIX (rgb4[2][2], tt); \
} else { \
color4[3] = colorA; \
color4[0] = colorB; \
ta = (colorA >> 10) & 0x1f; \
tb = (colorB >> 10) & 0x1f; \
color4[1] = ((11 * ta + 21 * tb) << 5) & 0x7c00; \
color4[2] = ((21 * ta + 11 * tb) << 5) & 0x7c00; \
ta = (colorA >> 5) & 0x1f; \
tb = (colorB >> 5) & 0x1f; \
color4[1] |= (11 * ta + 21 * tb) & 0x3e0; \
color4[2] |= (21 * ta + 11 * tb) & 0x3e0; \
ta = colorA & 0x1f; \
tb = colorB & 0x1f; \
color4[1] |= (11 * ta + 21 * tb) >> 5; \
color4[2] |= (21 * ta + 11 * tb) >> 5; \
} \
}
/*
* rpza frame decoder
*
* Input values:
*
* *encoded: buffer of encoded data (chunk)
* encoded_size: length of encoded buffer
* *decoded: buffer where decoded data is written (image buffer)
* width: width of decoded frame in pixels
* height: height of decoded frame in pixels
* bytes_per_pixel: bytes/pixel in output image (color depth)
*
*/
void qt_decode_rpza(char *encoded, int encoded_size, char *decoded, int width,
int height, int bytes_per_pixel)
{
int stream_ptr = 0;
int chunk_size;
unsigned char opcode;
int n_blocks;
unsigned short colorA, colorB;
unsigned char r, g, b;
unsigned char rgb4[4][3];
unsigned short color4[4];
unsigned char index, idx;
int row_ptr = 0;
int pixel_ptr = 0;
int pixel_x, pixel_y;
int row_inc = bytes_per_pixel * (width - 4);
int block_x_inc = bytes_per_pixel * 4;
int block_y_inc = bytes_per_pixel * width;
int block_ptr;
int total_blocks;
/* First byte is always 0xe1. Warn if it's different */
if ((unsigned char)encoded[stream_ptr] != 0xe1)
mp_msg(MSGT_DECVIDEO, MSGL_WARN,
"First chunk byte is 0x%02x instead of 0x1e\n",
(unsigned char)encoded[stream_ptr]);
/* Get chunk size, ingnoring first byte */
chunk_size = BE_32(&encoded[stream_ptr]) & 0x00FFFFFF;
stream_ptr += 4;
/* If length mismatch use size from MOV file and try to decode anyway */
if (chunk_size != encoded_size)
mp_msg(MSGT_DECVIDEO, MSGL_WARN, "MOV chunk size != encoded chunk size; using MOV chunk size\n");
chunk_size = encoded_size;
/* Number of 4x4 blocks in frame. */
total_blocks = (width * height) / (4 * 4);
/* Process chunk data */
while (stream_ptr < chunk_size) {
opcode = encoded[stream_ptr++]; /* Get opcode */
n_blocks = (opcode & 0x1f) +1; /* Extract block counter from opcode */
/* If opcode MSbit is 0, we need more data to decide what to do */
if ((opcode & 0x80) == 0) {
colorA = (opcode << 8) | ((unsigned char)encoded[stream_ptr++]);
opcode = 0;
if ((encoded[stream_ptr] & 0x80) != 0) {
/* Must behave as opcode 110xxxxx, using colorA computed above.*/
/* Use fake opcode 0x20 to enter switch block at the right place */
opcode = 0x20;
n_blocks = 1;
}
}
switch (opcode & 0xe0) {
/* Skip blocks */
case 0x80:
while (n_blocks--)
ADVANCE_BLOCK();
break;
/* Fill blocks with one color */
case 0xa0:
colorA = BE_16 (&encoded[stream_ptr]);
stream_ptr += 2;
COLOR_TO_RGB (r, g, b, colorA);
while (n_blocks--) {
block_ptr = row_ptr + pixel_ptr;
for (pixel_y = 0; pixel_y < 4; pixel_y++) {
for (pixel_x = 0; pixel_x < 4; pixel_x++){
PAINT_CURRENT_PIXEL(r, g, b, colorA);
}
block_ptr += row_inc;
}
ADVANCE_BLOCK();
}
break;
/* Fill blocks with 4 colors */
case 0xc0:
colorA = BE_16 (&encoded[stream_ptr]);
stream_ptr += 2;
case 0x20:
colorB = BE_16 (&encoded[stream_ptr]);
stream_ptr += 2;
COLORAB_TO_RGB4 (rgb4, color4, colorA, colorB);
while (n_blocks--) {
block_ptr = row_ptr + pixel_ptr;
for (pixel_y = 0; pixel_y < 4; pixel_y++) {
index = encoded[stream_ptr++];
for (pixel_x = 0; pixel_x < 4; pixel_x++){
idx = (index >> (2 * (3 - pixel_x))) & 0x03;
PAINT_CURRENT_PIXEL(rgb4[idx][0], rgb4[idx][1], rgb4[idx][2], color4[idx]);
}
block_ptr += row_inc;
}
ADVANCE_BLOCK();
}
break;
/* Fill block with 16 colors */
case 0x00:
block_ptr = row_ptr + pixel_ptr;
for (pixel_y = 0; pixel_y < 4; pixel_y++) {
for (pixel_x = 0; pixel_x < 4; pixel_x++){
/* We already have color of upper left pixel */
if ((pixel_y != 0) || (pixel_x !=0)) {
colorA = BE_16 (&encoded[stream_ptr]);
stream_ptr += 2;
}
COLOR_TO_RGB (r, g, b, colorA);
PAINT_CURRENT_PIXEL(r, g, b, colorA);
}
block_ptr += row_inc;
}
ADVANCE_BLOCK();
break;
/* Unknown opcode */
default:
mp_msg(MSGT_DECVIDEO, MSGL_HINT, "Unknown opcode %d in rpza chunk."
" Skip remaining %lu bytes of chunk data.\n", opcode,
chunk_size - stream_ptr);
return;
} /* Opcode switch */
}
}

513
libmpcodecs/native/qtsmc.c
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/*
Apple Graphics (SMC) Decoder for MPlayer
by Mike Melanson
Special thanks for Roberto Togni <rtogni@bresciaonline.it> for
tracking down the final, nagging bugs.
The description of the decoding algorithm can be found here:
http://www.pcisys.net/~melanson/codecs/
*/
#include <stdlib.h>
#include "config.h"
#include "bswap.h"
#include "mp_msg.h"
#define BE_16(x) (be2me_16(*(unsigned short *)(x)))
#define BE_32(x) (be2me_32(*(unsigned int *)(x)))
#define COLORS_PER_TABLE 256
#define BYTES_PER_COLOR 4
#define CPAIR 2
#define CQUAD 4
#define COCTET 8
static unsigned char *color_pairs;
static unsigned char *color_quads;
static unsigned char *color_octets;
static int color_pair_index;
static int color_quad_index;
static int color_octet_index;
static int smc_initialized;
// returns 0 if successfully initialized (enough memory was available),
// non-zero on failure
int qt_init_decode_smc(void)
{
// be pessimistic to start
smc_initialized = 0;
// allocate memory for the 3 palette tables
if ((color_pairs = (unsigned char *)malloc(
COLORS_PER_TABLE * BYTES_PER_COLOR * 2)) == 0)
return 1;
if ((color_quads = (unsigned char *)malloc(
COLORS_PER_TABLE * BYTES_PER_COLOR * 4)) == 0)
return 1;
if ((color_octets = (unsigned char *)malloc(
COLORS_PER_TABLE * BYTES_PER_COLOR * 8)) == 0)
return 1;
// if execution got this far, initialization succeeded
smc_initialized = 1;
return 0;
}
#define GET_BLOCK_COUNT \
(opcode & 0x10) ? (1 + encoded[stream_ptr++]) : 1 + (opcode & 0x0F);
#define ADVANCE_BLOCK() \
{ \
pixel_ptr += block_x_inc; \
if (pixel_ptr >= byte_width) \
{ \
pixel_ptr = 0; \
row_ptr += block_y_inc * 4; \
} \
total_blocks--; \
if (total_blocks < 0) \
{ \
mp_msg(MSGT_DECVIDEO, MSGL_WARN, "block counter just went negative (this should not happen)\n"); \
return; \
} \
}
void qt_decode_smc(
unsigned char *encoded,
int encoded_size,
unsigned char *decoded,
int pixel_width,
int pixel_height,
unsigned char *palette_map,
int bytes_per_pixel)
{
int i;
int stream_ptr = 0;
int chunk_size;
unsigned char opcode;
int n_blocks;
unsigned int color_flags;
unsigned int color_flags_a;
unsigned int color_flags_b;
unsigned int flag_mask;
int byte_width = pixel_width * bytes_per_pixel; // width of a row in bytes
int byte_height = pixel_height * byte_width; // max image size, basically
int row_ptr = 0;
int pixel_ptr = 0;
int pixel_x, pixel_y;
int row_inc = bytes_per_pixel * (pixel_width - 4);
int block_x_inc = bytes_per_pixel * 4;
int block_y_inc = bytes_per_pixel * pixel_width;
int block_ptr;
int prev_block_ptr;
int prev_block_ptr1, prev_block_ptr2;
int prev_block_flag;
int total_blocks;
int color_table_index; // indexes to color pair, quad, or octet tables
int color_index; // indexes into palette map
if (!smc_initialized)
return;
// reset color tables
color_pair_index = 0;
color_quad_index = 0;
color_octet_index = 0;
chunk_size = BE_32(&encoded[stream_ptr]) & 0x00FFFFFF;
stream_ptr += 4;
if (chunk_size != encoded_size)
mp_msg(MSGT_DECVIDEO, MSGL_WARN, "MOV chunk size != encoded chunk size; using MOV chunk size\n");
chunk_size = encoded_size;
total_blocks = (pixel_width * pixel_height) / (4 * 4);
// traverse through the blocks
while (total_blocks)
{
// sanity checks
// make sure stream ptr hasn't gone out of bounds
if (stream_ptr > chunk_size)
{
mp_msg(MSGT_DECVIDEO, MSGL_ERR,
"SMC decoder just went out of bounds (stream ptr = %d, chunk size = %d)\n",
stream_ptr, chunk_size);
return;
}
// make sure the row pointer hasn't gone wild
if (row_ptr >= byte_height)
{
mp_msg(MSGT_DECVIDEO, MSGL_ERR,
"SMC decoder just went out of bounds (row ptr = %d, height = %d)\n",
row_ptr, byte_height);
return;
}
opcode = encoded[stream_ptr++];
switch (opcode & 0xF0)
{
// skip n blocks
case 0x00:
case 0x10:
n_blocks = GET_BLOCK_COUNT;
while (n_blocks--)
ADVANCE_BLOCK();
break;
// repeat last block n times
case 0x20:
case 0x30:
n_blocks = GET_BLOCK_COUNT;
// sanity check
if ((row_ptr == 0) && (pixel_ptr == 0))
{
mp_msg(MSGT_DECVIDEO, MSGL_WARN,
"encountered repeat block opcode (%02X) but no blocks rendered yet\n",
opcode & 0xF0);
break;
}
// figure out where the previous block started
if (pixel_ptr == 0)
prev_block_ptr1 = (row_ptr - block_y_inc * 4) +
byte_width - block_x_inc;
else
prev_block_ptr1 = row_ptr + pixel_ptr - block_x_inc;
while (n_blocks--)
{
block_ptr = row_ptr + pixel_ptr;
prev_block_ptr = prev_block_ptr1;
for (pixel_y = 0; pixel_y < 4; pixel_y++)
{
for (pixel_x = 0; pixel_x < 4; pixel_x++)
{
decoded[block_ptr++] = decoded[prev_block_ptr++];
decoded[block_ptr++] = decoded[prev_block_ptr++];
decoded[block_ptr++] = decoded[prev_block_ptr++];
if (bytes_per_pixel == 4) /* 32bpp */
{
block_ptr++;
prev_block_ptr++;
}
}
block_ptr += row_inc;
prev_block_ptr += row_inc;
}
ADVANCE_BLOCK();
}
break;
// repeat previous pair of blocks n times
case 0x40:
case 0x50:
n_blocks = GET_BLOCK_COUNT;
n_blocks *= 2;
// sanity check
if ((row_ptr == 0) && (pixel_ptr < 2 * block_x_inc))
{
mp_msg(MSGT_DECVIDEO, MSGL_WARN,
"encountered repeat block opcode (%02X) but not enough blocks rendered yet\n",
opcode & 0xF0);
break;
}
// figure out where the previous 2 blocks started
if (pixel_ptr == 0)
prev_block_ptr1 = (row_ptr - block_y_inc * 4) +
byte_width - block_x_inc * 2;
else if (pixel_ptr == block_x_inc)
prev_block_ptr1 = (row_ptr - block_y_inc * 4) +
byte_width - block_x_inc;
else
prev_block_ptr1 = row_ptr + pixel_ptr - block_x_inc * 2;
if (pixel_ptr == 0)
prev_block_ptr2 = (row_ptr - block_y_inc * 4) +
(byte_width - block_x_inc);
else
prev_block_ptr2 = row_ptr + pixel_ptr - block_x_inc;
prev_block_flag = 0;
while (n_blocks--)
{
block_ptr = row_ptr + pixel_ptr;
if (prev_block_flag)
prev_block_ptr = prev_block_ptr2;
else
prev_block_ptr = prev_block_ptr1;
prev_block_flag = !prev_block_flag;
for (pixel_y = 0; pixel_y < 4; pixel_y++)
{
for (pixel_x = 0; pixel_x < 4; pixel_x++)
{
decoded[block_ptr++] = decoded[prev_block_ptr++];
decoded[block_ptr++] = decoded[prev_block_ptr++];
decoded[block_ptr++] = decoded[prev_block_ptr++];
if (bytes_per_pixel == 4) /* 32bpp */
{
block_ptr++;
prev_block_ptr++;
}
}
block_ptr += row_inc;
prev_block_ptr += row_inc;
}
ADVANCE_BLOCK();
}
break;
// 1-color block encoding
case 0x60:
case 0x70:
n_blocks = GET_BLOCK_COUNT;
color_index = encoded[stream_ptr++] * 4;
while (n_blocks--)
{
block_ptr = row_ptr + pixel_ptr;
for (pixel_y = 0; pixel_y < 4; pixel_y++)
{
for (pixel_x = 0; pixel_x < 4; pixel_x++)
{
decoded[block_ptr++] = palette_map[color_index + 0];
decoded[block_ptr++] = palette_map[color_index + 1];
decoded[block_ptr++] = palette_map[color_index + 2];
if (bytes_per_pixel == 4) /* 32bpp */
block_ptr++;
}
block_ptr += row_inc;
}
ADVANCE_BLOCK();
}
break;
// 2-color block encoding
case 0x80:
case 0x90:
n_blocks = (opcode & 0x0F) + 1;
// figure out which color pair to use to paint the 2-color block
if ((opcode & 0xF0) == 0x80)
{
// fetch the next 2 colors from bytestream and store in next
// available entry in the color pair table
for (i = 0; i < CPAIR; i++)
{
color_index = encoded[stream_ptr++] * BYTES_PER_COLOR;
color_table_index = CPAIR * BYTES_PER_COLOR * color_pair_index +
(i * BYTES_PER_COLOR);
color_pairs[color_table_index + 0] = palette_map[color_index + 0];
color_pairs[color_table_index + 1] = palette_map[color_index + 1];
color_pairs[color_table_index + 2] = palette_map[color_index + 2];
}
// this is the base index to use for this block
color_table_index = CPAIR * BYTES_PER_COLOR * color_pair_index;
color_pair_index++;
if (color_pair_index == COLORS_PER_TABLE)
color_pair_index = 0;
}
else
color_table_index = CPAIR * BYTES_PER_COLOR * encoded[stream_ptr++];
while (n_blocks--)
{
color_flags = BE_16(&encoded[stream_ptr]);
stream_ptr += 2;
flag_mask = 0x8000;
block_ptr = row_ptr + pixel_ptr;
for (pixel_y = 0; pixel_y < 4; pixel_y++)
{
for (pixel_x = 0; pixel_x < 4; pixel_x++)
{
if (color_flags & flag_mask)
color_index = color_table_index + BYTES_PER_COLOR;
else
color_index = color_table_index;
flag_mask >>= 1;
decoded[block_ptr++] = color_pairs[color_index + 0];
decoded[block_ptr++] = color_pairs[color_index + 1];
decoded[block_ptr++] = color_pairs[color_index + 2];
if (bytes_per_pixel == 4) /* 32bpp */
block_ptr++;
}
block_ptr += row_inc;
}
ADVANCE_BLOCK();
}
break;
// 4-color block encoding
case 0xA0:
case 0xB0:
n_blocks = (opcode & 0x0F) + 1;
// figure out which color quad to use to paint the 4-color block
if ((opcode & 0xF0) == 0xA0)
{
// fetch the next 4 colors from bytestream and store in next
// available entry in the color quad table
for (i = 0; i < CQUAD; i++)
{
color_index = encoded[stream_ptr++] * BYTES_PER_COLOR;
color_table_index = CQUAD * BYTES_PER_COLOR * color_quad_index +
(i * BYTES_PER_COLOR);
color_quads[color_table_index + 0] = palette_map[color_index + 0];
color_quads[color_table_index + 1] = palette_map[color_index + 1];
color_quads[color_table_index + 2] = palette_map[color_index + 2];
}
// this is the base index to use for this block
color_table_index = CQUAD * BYTES_PER_COLOR * color_quad_index;
color_quad_index++;
if (color_quad_index == COLORS_PER_TABLE)
color_quad_index = 0;
}
else
color_table_index = CQUAD * BYTES_PER_COLOR * encoded[stream_ptr++];
while (n_blocks--)
{
color_flags = BE_32(&encoded[stream_ptr]);
stream_ptr += 4;
// flag mask actually acts as a bit shift count here
flag_mask = 30;
block_ptr = row_ptr + pixel_ptr;
for (pixel_y = 0; pixel_y < 4; pixel_y++)
{
for (pixel_x = 0; pixel_x < 4; pixel_x++)
{
color_index = color_table_index + (BYTES_PER_COLOR *
((color_flags >> flag_mask) & 0x03));
flag_mask -= 2;
decoded[block_ptr++] = color_quads[color_index + 0];
decoded[block_ptr++] = color_quads[color_index + 1];
decoded[block_ptr++] = color_quads[color_index + 2];
if (bytes_per_pixel == 4) /* 32bpp */
block_ptr++;
}
block_ptr += row_inc;
}
ADVANCE_BLOCK();
}
break;
// 8-color block encoding
case 0xC0:
case 0xD0:
n_blocks = (opcode & 0x0F) + 1;
// figure out which color octet to use to paint the 8-color block
if ((opcode & 0xF0) == 0xC0)
{
// fetch the next 8 colors from bytestream and store in next
// available entry in the color octet table
for (i = 0; i < COCTET; i++)
{
color_index = encoded[stream_ptr++] * BYTES_PER_COLOR;
color_table_index = COCTET * BYTES_PER_COLOR * color_octet_index +
(i * BYTES_PER_COLOR);
color_octets[color_table_index + 0] = palette_map[color_index + 0];
color_octets[color_table_index + 1] = palette_map[color_index + 1];
color_octets[color_table_index + 2] = palette_map[color_index + 2];
}
// this is the base index to use for this block
color_table_index = COCTET * BYTES_PER_COLOR * color_octet_index;
color_octet_index++;
if (color_octet_index == COLORS_PER_TABLE)
color_octet_index = 0;
}
else
color_table_index = COCTET * BYTES_PER_COLOR * encoded[stream_ptr++];
while (n_blocks--)
{
/*
For this input:
01 23 45 67 89 AB
This is the output:
flags_a = xx012456, flags_b = xx89A37B
*/
// build the color flags
color_flags_a = color_flags_b = 0;
color_flags_a =
(encoded[stream_ptr + 0] << 16) |
((encoded[stream_ptr + 1] & 0xF0) << 8) |
((encoded[stream_ptr + 2] & 0xF0) << 4) |
((encoded[stream_ptr + 2] & 0x0F) << 4) |
((encoded[stream_ptr + 3] & 0xF0) >> 4);
color_flags_b =
(encoded[stream_ptr + 4] << 16) |
((encoded[stream_ptr + 5] & 0xF0) << 8) |
((encoded[stream_ptr + 1] & 0x0F) << 8) |
((encoded[stream_ptr + 3] & 0x0F) << 4) |
(encoded[stream_ptr + 5] & 0x0F);
stream_ptr += 6;
color_flags = color_flags_a;
// flag mask actually acts as a bit shift count here
flag_mask = 21;
block_ptr = row_ptr + pixel_ptr;
for (pixel_y = 0; pixel_y < 4; pixel_y++)
{
// reload flags at third row (iteration pixel_y == 2)
if (pixel_y == 2)
{
color_flags = color_flags_b;
flag_mask = 21;
}
for (pixel_x = 0; pixel_x < 4; pixel_x++)
{
color_index = color_table_index + (BYTES_PER_COLOR *
((color_flags >> flag_mask) & 0x07));
flag_mask -= 3;
decoded[block_ptr++] = color_octets[color_index + 0];
decoded[block_ptr++] = color_octets[color_index + 1];
decoded[block_ptr++] = color_octets[color_index + 2];
if (bytes_per_pixel == 4) /* 32bpp */
block_ptr++;
}
block_ptr += row_inc;
}
ADVANCE_BLOCK();
}
break;
// 16-color block encoding (every pixel is a different color)
case 0xE0:
n_blocks = (opcode & 0x0F) + 1;
while (n_blocks--)
{
block_ptr = row_ptr + pixel_ptr;
for (pixel_y = 0; pixel_y < 4; pixel_y++)
{
for (pixel_x = 0; pixel_x < 4; pixel_x++)
{
color_index = encoded[stream_ptr++] * BYTES_PER_COLOR;
decoded[block_ptr++] = palette_map[color_index + 0];
decoded[block_ptr++] = palette_map[color_index + 1];
decoded[block_ptr++] = palette_map[color_index + 2];
if (bytes_per_pixel == 4) /* 32bpp */
block_ptr++;
}
block_ptr += row_inc;
}
ADVANCE_BLOCK();
}
break;
case 0xF0:
mp_msg(MSGT_DECVIDEO, MSGL_HINT, "0xF0 opcode seen in SMC chunk (MPlayer developers would like to know)\n");
break;
}
}
}

435
libmpcodecs/vd_msrle.c
View File

@ -1,435 +0,0 @@
#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#include "mp_msg.h"
#include "vd_internal.h"
static vd_info_t info = {
"Microsoft RLE decoder",
"msrle",
"Mike Melanson",
"Mike Melanson",
"native codec"
};
LIBVD_EXTERN(msrle)
// to set/get/query special features/parameters
static int control(sh_video_t *sh,int cmd,void* arg,...){
return CONTROL_UNKNOWN;
}
// init driver
static int init(sh_video_t *sh){
unsigned char *palette_map = NULL;
unsigned char *orig_map = (unsigned char *)sh->bih+40;
int i;
unsigned short color;
unsigned char r, g, b;
int bits_per_pixel = sh->codec->outfmt[sh->outfmtidx] & 255;
// convert the palette for the requested output format
switch (bits_per_pixel)
{
case 15:
case 16:
if ((palette_map =
(unsigned char *)malloc(sh->bih->biClrUsed * 2)) == NULL)
return 0;
for (i = 0; i < sh->bih->biClrUsed; i++)
{
r = orig_map[i * 4 + 2];
g = orig_map[i * 4 + 1];
b = orig_map[i * 4 + 0];
if (bits_per_pixel == 15)
color = ((r>>3)<<10) | ((g>>3)<<5) | ((b>>3));
else
color = ((r>>3)<<11) | ((g>>2)<<5) | ((b>>3));
palette_map[i * 2 + 1] = color >> 8;
palette_map[i * 2 + 0] = color & 0xFF;
}
break;
case 24:
case 32:
if ((palette_map =
(unsigned char *)malloc(sh->bih->biClrUsed * 4)) == NULL)
return 0;
memcpy(palette_map, orig_map, sh->bih->biClrUsed * 4);
break;
}
sh->context = palette_map;
return mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_BGR24);
}
// uninit driver
static void uninit(sh_video_t *sh){
unsigned char *palette_map = (unsigned char *)sh->context;
free(palette_map);
}
#define FETCH_NEXT_STREAM_BYTE() \
if (stream_ptr >= encoded_size) \
{ \
mp_msg(MSGT_DECVIDEO, MSGL_WARN, \
"MS RLE: stream ptr just went out of bounds (1)\n"); \
return; \
} \
stream_byte = encoded[stream_ptr++];
void decode_msrle4(
unsigned char *encoded,
int encoded_size,
unsigned char *decoded,
int width,
int height,
unsigned char *palette_map,
int bits_per_pixel)
{
int bytes_per_pixel = (bits_per_pixel + 1) / 8;
unsigned char r1, g1, b1; // for 24/32 bpp
unsigned char r2, g2, b2;
unsigned char color_hi1, color_lo1; // for 15/16 bpp
unsigned char color_hi2, color_lo2;
int stream_ptr = 0;
unsigned char rle_code;
unsigned char extra_byte;
unsigned char stream_byte;
int frame_size = width * height * bytes_per_pixel;
int pixel_ptr = 0;
int row_dec = width * bytes_per_pixel;
int row_ptr = (height - 1) * row_dec;
int i;
r1 = r2 = g1 = g2 = b1 = b2 =
color_hi1 = color_hi2 = color_lo1 = color_lo2 = 0;
while (row_ptr >= 0)
{
FETCH_NEXT_STREAM_BYTE();
rle_code = stream_byte;
if (rle_code == 0)
{
// fetch the next byte to see how to handle escape code
FETCH_NEXT_STREAM_BYTE();
if (stream_byte == 0)
{
// line is done, goto the next one
row_ptr -= row_dec;
pixel_ptr = 0;
}
else if (stream_byte == 1)
// decode is done
return;
else if (stream_byte == 2)
{
// reposition frame decode coordinates
FETCH_NEXT_STREAM_BYTE();
pixel_ptr += stream_byte * bytes_per_pixel;
FETCH_NEXT_STREAM_BYTE();
row_ptr -= stream_byte * row_dec;
}
else
{
// copy pixels from encoded stream
rle_code = ((stream_byte + 1) & (~1)) / 2;
extra_byte = rle_code & 0x01;
if ((row_ptr + pixel_ptr + stream_byte * bytes_per_pixel > frame_size) ||
(row_ptr < 0))
{
mp_msg(MSGT_DECVIDEO, MSGL_WARN,
"MS RLE: frame ptr just went out of bounds (1)\n");
return;
}
for (i = 0; i < rle_code; i++)
{
if (pixel_ptr >= row_dec)
break;
if (bytes_per_pixel == 2)
{
color_hi1 = palette_map[(encoded[stream_ptr + i] >> 4) * 2 + 0];
color_lo1 = palette_map[(encoded[stream_ptr + i] >> 4) * 2 + 1];
decoded[row_ptr + pixel_ptr + 0] = color_hi1;
decoded[row_ptr + pixel_ptr + 1] = color_lo1;
}
else
{
r1 = palette_map[(encoded[stream_ptr + i] >> 4) * 4 + 2];
g1 = palette_map[(encoded[stream_ptr + i] >> 4) * 4 + 1];
b1 = palette_map[(encoded[stream_ptr + i] >> 4) * 4 + 0];
decoded[row_ptr + pixel_ptr + 0] = b1;
decoded[row_ptr + pixel_ptr + 1] = g1;
decoded[row_ptr + pixel_ptr + 2] = r1;
}
pixel_ptr += bytes_per_pixel;
if (i + 1 == rle_code && (stream_byte & 1) != 0)
break;
if (pixel_ptr >= row_dec)
break;
if (bytes_per_pixel == 2)
{
color_hi1 = palette_map[(encoded[stream_ptr + i] & 0x0F) * 2 + 0];
color_lo1 = palette_map[(encoded[stream_ptr + i] & 0x0F) * 2 + 1];
decoded[row_ptr + pixel_ptr + 0] = color_hi1;
decoded[row_ptr + pixel_ptr + 1] = color_lo1;
}
else
{
r1 = palette_map[(encoded[stream_ptr + i] & 0x0F) * 4 + 2];
g1 = palette_map[(encoded[stream_ptr + i] & 0x0F) * 4 + 1];
b1 = palette_map[(encoded[stream_ptr + i] & 0x0F) * 4 + 0];
decoded[row_ptr + pixel_ptr + 0] = b1;
decoded[row_ptr + pixel_ptr + 1] = g1;
decoded[row_ptr + pixel_ptr + 2] = r1;
}
pixel_ptr += bytes_per_pixel;
}
stream_ptr += rle_code;
// if the RLE code is odd, skip a byte in the stream
if (extra_byte)
stream_ptr++;
}
}
else
{
// decode a run of data
FETCH_NEXT_STREAM_BYTE();
if (bytes_per_pixel == 2)
{
color_hi1 = palette_map[(stream_byte >> 4) * 2 + 0];
color_lo1 = palette_map[(stream_byte >> 4) * 2 + 1];
color_hi2 = palette_map[(stream_byte & 0x0F) * 2 + 0];
color_lo2 = palette_map[(stream_byte & 0x0F) * 2 + 1];
}
else
{
r1 = palette_map[(stream_byte >> 4) * 4 + 2];
g1 = palette_map[(stream_byte >> 4) * 4 + 1];
b1 = palette_map[(stream_byte >> 4) * 4 + 0];
r2 = palette_map[(stream_byte & 0x0F) * 4 + 2];
g2 = palette_map[(stream_byte & 0x0F) * 4 + 1];
b2 = palette_map[(stream_byte & 0x0F) * 4 + 0];
}
for (i = 0; i < rle_code; i++)
{
if (pixel_ptr >= row_dec)
break;
if ((i & 1) == 0)
{
if (bytes_per_pixel == 2)
{
decoded[row_ptr + pixel_ptr + 0] = color_hi1;
decoded[row_ptr + pixel_ptr + 1] = color_lo1;
}
else
{
decoded[row_ptr + pixel_ptr + 0] = b1;
decoded[row_ptr + pixel_ptr + 1] = g1;
decoded[row_ptr + pixel_ptr + 2] = r1;
}
}
else
{
if (bytes_per_pixel == 2)
{
decoded[row_ptr + pixel_ptr + 0] = color_hi2;
decoded[row_ptr + pixel_ptr + 1] = color_lo2;
}
else
{
decoded[row_ptr + pixel_ptr + 0] = b2;
decoded[row_ptr + pixel_ptr + 1] = g2;
decoded[row_ptr + pixel_ptr + 2] = r2;
}
}
pixel_ptr += bytes_per_pixel;
}
}
}
// one last sanity check on the way out
if (stream_ptr < encoded_size)
mp_msg(MSGT_DECVIDEO, MSGL_WARN,
"MS RLE: ended frame decode with bytes left over (%d < %d)\n",
stream_ptr, encoded_size);
}
void decode_msrle8(
unsigned char *encoded,
int encoded_size,
unsigned char *decoded,
int width,
int height,
unsigned char *palette_map,
int bits_per_pixel)
{
int bytes_per_pixel = (bits_per_pixel + 1) / 8;
unsigned char r, g, b; // for 24/32 bpp
unsigned char color_hi, color_lo; // for 15/16 bpp
int stream_ptr = 0;
unsigned char rle_code;
unsigned char extra_byte;
unsigned char stream_byte;
int frame_size = width * height * bytes_per_pixel;
int pixel_ptr = 0;
int row_dec = width * bytes_per_pixel;
int row_ptr = (height - 1) * row_dec;
r = g = b = color_hi = color_lo = 0;
while (row_ptr >= 0)
{
FETCH_NEXT_STREAM_BYTE();
rle_code = stream_byte;
if (rle_code == 0)
{
// fetch the next byte to see how to handle escape code
FETCH_NEXT_STREAM_BYTE();
if (stream_byte == 0)
{
// line is done, goto the next one
row_ptr -= row_dec;
pixel_ptr = 0;
}
else if (stream_byte == 1)
// decode is done
return;
else if (stream_byte == 2)
{
// reposition frame decode coordinates
FETCH_NEXT_STREAM_BYTE();
pixel_ptr += stream_byte * bytes_per_pixel;
FETCH_NEXT_STREAM_BYTE();
row_ptr -= stream_byte * row_dec;
}
else
{
// copy pixels from encoded stream
if ((row_ptr + pixel_ptr + stream_byte * bytes_per_pixel > frame_size) ||
(row_ptr < 0))
{
mp_msg(MSGT_DECVIDEO, MSGL_WARN,
"MS RLE: frame ptr just went out of bounds (1)\n");
return;
}
rle_code = stream_byte;
extra_byte = stream_byte & 0x01;
if (stream_ptr + rle_code + extra_byte > encoded_size)
{
mp_msg(MSGT_DECVIDEO, MSGL_WARN,
"MS RLE: stream ptr just went out of bounds (2)\n");
return;
}
while (rle_code--)
{
FETCH_NEXT_STREAM_BYTE();
if (bytes_per_pixel == 2)
{
color_hi = palette_map[stream_byte * 2 + 0];
color_lo = palette_map[stream_byte * 2 + 1];
decoded[row_ptr + pixel_ptr + 0] = color_hi;
decoded[row_ptr + pixel_ptr + 1] = color_lo;
}
else
{
r = palette_map[stream_byte * 4 + 2];
g = palette_map[stream_byte * 4 + 1];
b = palette_map[stream_byte * 4 + 0];
decoded[row_ptr + pixel_ptr + 0] = b;
decoded[row_ptr + pixel_ptr + 1] = g;
decoded[row_ptr + pixel_ptr + 2] = r;
}
pixel_ptr += bytes_per_pixel;
}
// if the RLE code is odd, skip a byte in the stream
if (extra_byte)
stream_ptr++;
}
}
else
{
// decode a run of data
if ((row_ptr + pixel_ptr + stream_byte * bytes_per_pixel > frame_size) ||
(row_ptr < 0))
{
mp_msg(MSGT_DECVIDEO, MSGL_WARN,
"MS RLE: frame ptr just went out of bounds (2)\n");
return;
}
FETCH_NEXT_STREAM_BYTE();
if (bytes_per_pixel == 2)
{
color_hi = palette_map[stream_byte * 2 + 0];
color_lo = palette_map[stream_byte * 2 + 1];
}
else
{
r = palette_map[stream_byte * 4 + 2];
g = palette_map[stream_byte * 4 + 1];
b = palette_map[stream_byte * 4 + 0];
}
while(rle_code--)
{
if (bytes_per_pixel == 2)
{
decoded[row_ptr + pixel_ptr + 0] = color_hi;
decoded[row_ptr + pixel_ptr + 1] = color_lo;
}
else
{
decoded[row_ptr + pixel_ptr + 0] = b;
decoded[row_ptr + pixel_ptr + 1] = g;
decoded[row_ptr + pixel_ptr + 2] = r;
}
pixel_ptr += bytes_per_pixel;
}
}
}
// one last sanity check on the way out
if (stream_ptr < encoded_size)
mp_msg(MSGT_DECVIDEO, MSGL_WARN,
"MS RLE: ended frame decode with bytes left over (%d < %d)\n",
stream_ptr, encoded_size);
}
// decode a frame
static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
mp_image_t* mpi;
if(len<=0) return NULL; // skipped frame
mpi=mpcodecs_get_image(sh, MP_IMGTYPE_STATIC, MP_IMGFLAG_PRESERVE,
sh->disp_w, sh->disp_h);
if(!mpi) return NULL;
if (sh->format == 1)
decode_msrle8(
data,len, mpi->planes[0],
sh->disp_w, sh->disp_h,
(unsigned char *)sh->context,
mpi->imgfmt & 255);
else if (sh->format == 2)
decode_msrle4(
data,len, mpi->planes[0],
sh->disp_w, sh->disp_h,
(unsigned char *)sh->context,
mpi->imgfmt & 255);
else
mp_msg(MSGT_DECVIDEO, MSGL_WARN,
"MS RLE: Don't know how to decode format %08X", sh->format);
return mpi;
}

74
libmpcodecs/vd_msvidc.c
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#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#include "mp_msg.h"
#include "vd_internal.h"
static vd_info_t info = {
"Microsoft Video 1 / CRAM decoder",
"msvidc",
"A'rpi",
"Mike Melanson",
"native codec"
};
LIBVD_EXTERN(msvidc)
// to set/get/query special features/parameters
static int control(sh_video_t *sh,int cmd,void* arg,...){
return CONTROL_UNKNOWN;
}
// init driver
static int init(sh_video_t *sh){
return mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_BGR24);
}
// uninit driver
static void uninit(sh_video_t *sh){
}
//mp_image_t* mpcodecs_get_image(sh_video_t *sh, int mp_imgtype, int mp_imgflag, int w, int h);
void AVI_Decode_Video1_16(
char *encoded,
int encoded_size,
char *decoded,
int width,
int height,
int bytes_per_pixel);
void AVI_Decode_Video1_8(
char *encoded,
int encoded_size,
char *decoded,
int width,
int height,
unsigned char *palette_map,
int bytes_per_pixel);
// decode a frame
static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
mp_image_t* mpi;
if(len<=0) return NULL; // skipped frame
mpi=mpcodecs_get_image(sh, MP_IMGTYPE_STATIC, MP_IMGFLAG_PRESERVE,
sh->disp_w, sh->disp_h);
if(!mpi) return NULL;
if (sh->bih->biBitCount == 16)
AVI_Decode_Video1_16(
data, len, mpi->planes[0],
sh->disp_w, sh->disp_h,
mpi->bpp/8);
else
AVI_Decode_Video1_8(
data, len, mpi->planes[0],
sh->disp_w, sh->disp_h,
(unsigned char *)sh->bih+40,
mpi->bpp/8);
return mpi;
}

228
libmpcodecs/vd_qt8bps.c
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@ -1,228 +0,0 @@
/*
*
* QuickTime 8BPS decoder for Mplayer
* (c) 2003 Roberto Togni
*
* Fourcc: 8BPS
*
* Supports 8bpp (paletted), 24bpp and 32bpp (4th plane ignored)
*
*/
#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#include "bswap.h"
#include "mp_msg.h"
#include "vd_internal.h"
static vd_info_t info = {
"8BPS Video decoder",
"qt8bps",
"Roberto Togni",
"Roberto Togni",
"native codec"
};
LIBVD_EXTERN(qt8bps)
/*
* Decoder context
*/
typedef struct {
unsigned char planes;
unsigned char planemap[4];
unsigned char *palette;
} qt8bps_context_t;
/*
* Internal function prototypes
*/
// to set/get/query special features/parameters
static int control(sh_video_t *sh,int cmd,void* arg,...)
{
qt8bps_context_t *hc = (qt8bps_context_t *) sh->context; // Decoder context
if (cmd == VDCTRL_QUERY_FORMAT)
switch (hc->planes) {
case 1:
if (*((int*)arg) == IMGFMT_BGR8)
return CONTROL_TRUE;
else
return CONTROL_FALSE;
break;
case 3:
case 4:
if ((*((int*)arg) == IMGFMT_BGR24) || (*((int*)arg) == IMGFMT_BGR32))
return CONTROL_TRUE;
else
return CONTROL_FALSE;
break;
default:
return CONTROL_FALSE;
}
return CONTROL_UNKNOWN;
}
/*
*
* Init 8BPS decoder
*
*/
static int init(sh_video_t *sh)
{
int vo_ret; // Video output init ret value
qt8bps_context_t *hc; // Decoder context
BITMAPINFOHEADER *bih = sh->bih;
if ((hc = malloc(sizeof(qt8bps_context_t))) == NULL) {
mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Can't allocate memory for 8BPS decoder context.\n");
return 0;
}
sh->context = (void *)hc;
hc->palette = NULL;
switch (bih->biBitCount) {
case 8:
hc->planes = 1;
hc->planemap[0] = 0; // 1st plane is palette indexes
if (bih->biSize > sizeof(BITMAPINFOHEADER)) {
hc->palette = (unsigned char *)malloc(256*4);
memcpy(hc->palette, (unsigned char*)bih + sizeof(BITMAPINFOHEADER), 256*4);
}
break;
case 24:
hc->planes = 3;
hc->planemap[0] = 2; // 1st plane is red
hc->planemap[1] = 1; // 2nd plane is green
hc->planemap[2] = 0; // 3rd plane is blue
break;
case 32:
hc->planes = 4;
hc->planemap[0] = 2; // 1st plane is red
hc->planemap[1] = 1; // 2nd plane is green
hc->planemap[2] = 0; // 3rd plane is blue
hc->planemap[3] = 3; // 4th plane is alpha???
mp_msg(MSGT_DECVIDEO, MSGL_WARN, "[8BPS] Ignoring 4th (alpha?) plane.\n");
break;
default:
mp_msg(MSGT_DECVIDEO, MSGL_ERR, "[8BPS] Unsupported color depth: %u.\n", bih->biBitCount);
return 0;
}
/*
* Initialize video output device
*/
vo_ret = mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_BGR24);
return vo_ret;
}
/*
*
* Uninit 8BPS decoder
*
*/
static void uninit(sh_video_t *sh)
{
qt8bps_context_t *hc = (qt8bps_context_t *) sh->context; // Decoder context
if (sh->context) {
if (hc->palette)
free (hc->palette);
free(sh->context);
}
}
/*
*
* Decode a frame
*
*/
static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags)
{
mp_image_t* mpi;
unsigned char *encoded = (unsigned char *)data;
qt8bps_context_t *hc = (qt8bps_context_t *) sh->context; // Decoder context
unsigned char *outptr, *pixptr;
unsigned int height = sh->disp_h; // Real image height
unsigned int dlen, p, row;
unsigned char *lp, *dp;
unsigned char count;
unsigned int px_inc;
unsigned int planes = hc->planes;
unsigned char *planemap = hc->planemap;
// Skipped frame
if(len <= 0)
return NULL;
/* Get output image buffer */
mpi=mpcodecs_get_image(sh, MP_IMGTYPE_STATIC, MP_IMGFLAG_ACCEPT_STRIDE, sh->disp_w, sh->disp_h);
if (!mpi) {
mp_msg(MSGT_DECVIDEO, MSGL_ERR, "Can't allocate mpi image for 8BPS codec.\n");
return NULL;
}
outptr = mpi->planes[0]; // Output image pointer
px_inc = mpi->bpp/8;
/* Set data pointer after line lengths */
dp = encoded + hc->planes*(height << 1);
/* Ignore alpha plane, don't know what to do with it */
if (planes == 4)
planes--;
for (p = 0; p < planes; p++) {
/* Lines length pointer for this plane */
lp = encoded + p*(height << 1);
/* Decode a plane */
for(row = 0; row < height; row++) {
pixptr = outptr + row * mpi->stride[0] + planemap[p];
dlen = be2me_16(*(unsigned short *)(lp+row*2));
/* Decode a row of this plane */
while(dlen > 0) {
if ((count = *dp++) <= 127) {
count++;
dlen -= count + 1;
while(count--) {
*pixptr = *dp++;
pixptr += px_inc;
}
} else {
count = 257 - count;
while(count--) {
*pixptr = *dp;
pixptr += px_inc;
}
dp++;
dlen -= 2;
}
}
}
}
if (hc->palette)
mpi->planes[1] = hc->palette;
return mpi;
}

53
libmpcodecs/vd_qtrpza.c
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@ -1,53 +0,0 @@
#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#include "mp_msg.h"
#include "vd_internal.h"
static vd_info_t info = {
"Quicktime Apple Video",
"qtrpza",
"Roberto Togni",
"Roberto Togni",
"native codec"
};
LIBVD_EXTERN(qtrpza)
// to set/get/query special features/parameters
static int control(sh_video_t *sh,int cmd,void* arg,...){
return CONTROL_UNKNOWN;
}
// init driver
static int init(sh_video_t *sh){
return mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_BGR15);
}
// uninit driver
static void uninit(sh_video_t *sh){
}
//mp_image_t* mpcodecs_get_image(sh_video_t *sh, int mp_imgtype, int mp_imgflag, int w, int h);
void qt_decode_rpza(char *encoded, int encodec_size, char *decodec, int width, int height, int bytes_per_pixel);
// decode a frame
static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
mp_image_t* mpi;
if(len<=0) return NULL; // skipped frame
mpi=mpcodecs_get_image(sh, MP_IMGTYPE_STATIC, MP_IMGFLAG_PRESERVE, sh->disp_w, sh->disp_h);
if(!mpi){ // temporary!
printf("couldn't allocate image for qtrpza codec\n");
return NULL;
}
qt_decode_rpza(data, len, mpi->planes[0], sh->disp_w, sh->disp_h,
mpi->bpp/8);
return mpi;
}

67
libmpcodecs/vd_qtsmc.c
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#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#include "mp_msg.h"
#include "vd_internal.h"
static vd_info_t info = {
"Apple Graphics (SMC) decoder",
"qtsmc",
"A'rpi",
"Mike Melanson",
"native codec"
};
LIBVD_EXTERN(qtsmc)
// to set/get/query special features/parameters
static int control(sh_video_t *sh,int cmd,void* arg,...){
return CONTROL_UNKNOWN;
}
int qt_init_decode_smc(void);
// init driver
static int init(sh_video_t *sh){
if (qt_init_decode_smc() != 0){
mp_msg(MSGT_DECVIDEO, MSGL_ERR, "SMC decoder could not allocate enough memory");
return 0;
}
return mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_BGR24);
}
// uninit driver
static void uninit(sh_video_t *sh){
}
//mp_image_t* mpcodecs_get_image(sh_video_t *sh, int mp_imgtype, int mp_imgflag, int w, int h);
void qt_decode_smc(
unsigned char *encoded,
int encoded_size,
unsigned char *decoded,
int width,
int height,
unsigned char *palette_map,
int bytes_per_pixel);
// decode a frame
static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
mp_image_t* mpi;
if(len<=0) return NULL; // skipped frame
mpi=mpcodecs_get_image(sh, MP_IMGTYPE_STATIC, MP_IMGFLAG_PRESERVE,
sh->disp_w, sh->disp_h);
if(!mpi) return NULL;
qt_decode_smc(
data,len, mpi->planes[0],
sh->disp_w, sh->disp_h,
(unsigned char *)sh->bih+40,
mpi->bpp/8);
return mpi;
}