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-rw-r--r--src/libxinevdec/qtrle.c1040
1 files changed, 0 insertions, 1040 deletions
diff --git a/src/libxinevdec/qtrle.c b/src/libxinevdec/qtrle.c
deleted file mode 100644
index 445dc71d7..000000000
--- a/src/libxinevdec/qtrle.c
+++ /dev/null
@@ -1,1040 +0,0 @@
-/*
- * Copyright (C) 2000-2003 the xine project
- *
- * This file is part of xine, a free video player.
- *
- * xine is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * xine is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- *
- * QT RLE Decoder by Mike Melanson (melanson@pcisys.net)
- * For more information on the QT RLE format, visit:
- * http://www.pcisys.net/~melanson/codecs/
- *
- * $Id: qtrle.c,v 1.20 2004/02/09 22:04:11 jstembridge Exp $
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "xine_internal.h"
-#include "video_out.h"
-#include "buffer.h"
-#include "xineutils.h"
-#include "bswap.h"
-
-#define VIDEOBUFSIZE 128*1024
-
-typedef struct {
- video_decoder_class_t decoder_class;
-} qtrle_class_t;
-
-typedef struct qtrle_decoder_s {
- video_decoder_t video_decoder; /* parent video decoder structure */
-
- qtrle_class_t *class;
- xine_stream_t *stream;
-
- /* these are traditional variables in a video decoder object */
- uint64_t video_step; /* frame duration in pts units */
- int decoder_ok; /* current decoder status */
- int skipframes;
-
- unsigned char *buf; /* the accumulated buffer data */
- int bufsize; /* the maximum size of buf */
- int size; /* the current size of buf */
-
- int width; /* the width of a video frame */
- int height; /* the height of a video frame */
- double ratio; /* the width to height ratio */
- int depth; /* color depth (bits/pixel) */
-
- unsigned char yuv_palette[256 * 4];
- yuv_planes_t yuv_planes;
-
-} qtrle_decoder_t;
-
-/**************************************************************************
- * QT RLE specific decode functions
- *************************************************************************/
-
-/* monochrome color definitions */
-#define Y_BLACK COMPUTE_Y(0x00, 0x00, 0x00)
-#define U_BLACK COMPUTE_U(0x00, 0x00, 0x00)
-#define V_BLACK COMPUTE_V(0x00, 0x00, 0x00)
-#define Y_WHITE COMPUTE_Y(0xFF, 0xFF, 0xFF)
-#define U_WHITE COMPUTE_U(0xFF, 0xFF, 0xFF)
-#define V_WHITE COMPUTE_V(0xFF, 0xFF, 0xFF)
-
-#define CHECK_STREAM_PTR(n) \
- if ((stream_ptr + n) > this->size) { \
- printf ("QT RLE problem: stream_ptr out of bounds (%d >= %d)\n", \
- stream_ptr + n, this->size); \
- return; \
- }
-
-#define CHECK_PIXEL_PTR(n) \
- if (pixel_ptr + n > pixel_limit) { \
- printf ("QT RLE problem: pixel_ptr >= pixel_limit (%d >= %d)\n", \
- pixel_ptr + n, pixel_limit); \
- return; \
- } \
-
-static void decode_qtrle_1(qtrle_decoder_t *this) {
-
- int stream_ptr;
- int header;
- int start_line;
- int lines_to_change;
- signed char rle_code;
- unsigned char skip_code;
- int row_ptr, pixel_ptr;
- int row_inc = this->width;
- unsigned char y[16], u[16], v[16];
- yuv_planes_t *yuv = &this->yuv_planes;
- int i, flags, flag_mask;
- int pixel_limit = this->width * this->height;
-
- /* check if this frame is even supposed to change */
- if (this->size < 8)
- return;
-
- /* start after the chunk size */
- stream_ptr = 4;
-
- /* fetch the header */
- CHECK_STREAM_PTR(2);
- header = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 2;
-
- /* if a header is present, fetch additional decoding parameters */
- if (header & 0x0008) {
- CHECK_STREAM_PTR(8);
- start_line = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 4;
- lines_to_change = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 4;
- } else {
- start_line = 0;
- lines_to_change = this->height;
- }
-
- row_ptr = row_inc * start_line;
- pixel_ptr = row_ptr;
- while (lines_to_change) {
-
- CHECK_STREAM_PTR(2);
- skip_code = this->buf[stream_ptr++];
- rle_code = this->buf[stream_ptr++];
-
- /* check if decode is finished */
- if (rle_code == 0)
- return;
- if ((skip_code == 0x80) && (rle_code == 0x00))
- return;
-
- /* check if it is time to move to the next line */
- if ((skip_code == 0x80) && (rle_code == -1)) {
- row_ptr += row_inc;
- pixel_ptr = row_ptr;
- lines_to_change--;
- } else {
-
- if (skip_code >= 0x80) {
- /* skip to the next line and then skip more pixels */
- row_ptr += row_inc;
- pixel_ptr = row_ptr + ((skip_code & 0x7F) * 16);
- lines_to_change--;
- } else
- /* skip pixels on the current line */
- pixel_ptr += (skip_code * 16);
-
- if (rle_code < 0) {
- /* decode the run length code */
- rle_code = -rle_code;
-
- /* get the next 16 bits from the stream and treat them as 16
- * monochrome pixels */
- CHECK_STREAM_PTR(2);
- flags = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 2;
- for (i = 0, flag_mask = 0x8000; i < 16; i++, flag_mask >>= 1) {
- if (flags & flag_mask) {
- y[i] = Y_WHITE;
- u[i] = U_WHITE;
- v[i] = V_WHITE;
- } else {
- y[i] = Y_BLACK;
- u[i] = U_BLACK;
- v[i] = V_BLACK;
- }
- }
- CHECK_PIXEL_PTR(rle_code * 16);
- while (rle_code--) {
- for (i = 0; i < 16; i++) {
- yuv->y[pixel_ptr] = y[i];
- yuv->u[pixel_ptr] = u[i];
- yuv->v[pixel_ptr] = v[i];
- pixel_ptr++;
- }
- }
- } else {
- /* copy pixels directly to output */
- CHECK_STREAM_PTR(rle_code * 2);
- CHECK_PIXEL_PTR(rle_code * 16);
- while (rle_code--) {
- flags = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 2;
- for (i = 0, flag_mask = 0x8000; i < 16; i++, flag_mask >>= 1) {
- if (flags & flag_mask) {
- yuv->y[pixel_ptr] = Y_WHITE;
- yuv->u[pixel_ptr] = U_WHITE;
- yuv->v[pixel_ptr] = V_WHITE;
- } else {
- yuv->y[pixel_ptr] = Y_BLACK;
- yuv->u[pixel_ptr] = U_BLACK;
- yuv->v[pixel_ptr] = V_BLACK;
- }
- pixel_ptr++;
- }
- }
- }
- }
- }
-}
-
-static void decode_qtrle_2(qtrle_decoder_t *this) {
-
- int stream_ptr;
- int header;
- int start_line;
- int lines_to_change;
- signed char rle_code;
- unsigned char skip_code;
- int row_ptr, pixel_ptr;
- int row_inc = this->width;
- unsigned char y[16], u[16], v[16];
- yuv_planes_t *yuv = &this->yuv_planes;
- int i, shift, index, indices;
- int start_of_line = 1;
- int pixel_limit = this->width * this->height;
-
- /* check if this frame is even supposed to change */
- if (this->size < 8)
- return;
-
- /* start after the chunk size */
- stream_ptr = 4;
-
- /* fetch the header */
- CHECK_STREAM_PTR(2);
- header = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 2;
-
- /* if a header is present, fetch additional decoding parameters */
- if (header & 0x0008) {
- CHECK_STREAM_PTR(8);
- start_line = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 4;
- lines_to_change = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 4;
- } else {
- start_line = 0;
- lines_to_change = this->height;
- }
-
- row_ptr = row_inc * start_line;
- pixel_ptr = row_ptr;
- while (lines_to_change) {
- if (start_of_line) {
- CHECK_STREAM_PTR(stream_ptr);
- skip_code = this->buf[stream_ptr++];
- if (skip_code == 0)
- return;
- skip_code--;
- start_of_line = 0;
- } else
- skip_code = 0;
-
- CHECK_STREAM_PTR(skip_code);
- rle_code = this->buf[stream_ptr++];
-
- if (rle_code == 0)
- return;
- else if (rle_code == -1) {
- /* reset to the start of next line */
- row_ptr += row_inc;
- pixel_ptr = row_ptr;
- start_of_line = 1;
- lines_to_change--;
- } else {
- if (skip_code & 0x80) {
- /* reset to the start of the next line and skip pixels */
- row_ptr += row_inc;
- pixel_ptr = row_ptr + (skip_code & 0x7F);
- lines_to_change--;
- } else {
- /* skip pixels on current line */
- pixel_ptr += skip_code;
- }
-
- if (rle_code < 0) {
- /* decode the run length code */
- rle_code = -rle_code;
-
- /* get the next 32 bits from the stream and treat them as 16
- * 2-bit indices into the palette */
- CHECK_STREAM_PTR(4);
- indices = BE_32(&this->buf[stream_ptr]);
- stream_ptr += 4;
- for (i = 0, shift = 30; i < 16; i++, shift -= 2) {
- index = (indices >> shift) & 0x03;
- y[i] = this->yuv_palette[index * 4 + 0];
- u[i] = this->yuv_palette[index * 4 + 1];
- v[i] = this->yuv_palette[index * 4 + 2];
- }
- CHECK_PIXEL_PTR(rle_code * 16);
- while (rle_code--) {
- for (i = 0; i < 16; i++) {
- yuv->y[pixel_ptr] = y[i];
- yuv->u[pixel_ptr] = u[i];
- yuv->v[pixel_ptr] = v[i];
- pixel_ptr++;
- }
- }
- } else {
- /* copy pixels directly to output */
- CHECK_STREAM_PTR(rle_code * 4);
- CHECK_PIXEL_PTR(rle_code * 16);
- while (rle_code--) {
- indices = BE_32(&this->buf[stream_ptr]);
- stream_ptr += 4;
- for (i = 0, shift = 30; i < 16; i++, shift -= 2) {
- index = (indices >> shift) & 0x03;
- yuv->y[pixel_ptr] = this->yuv_palette[index * 4 + 0];
- yuv->u[pixel_ptr] = this->yuv_palette[index * 4 + 1];
- yuv->v[pixel_ptr] = this->yuv_palette[index * 4 + 2];
- pixel_ptr++;
- }
- }
- }
- }
-
- row_ptr += row_inc;
- }
-}
-
-static void decode_qtrle_4(qtrle_decoder_t *this) {
-
- int stream_ptr;
- int header;
- int start_line;
- int lines_to_change;
- signed char rle_code;
- int row_ptr, pixel_ptr;
- int row_inc = this->width;
- unsigned char y[8], u[8], v[8];
- yuv_planes_t *yuv = &this->yuv_planes;
- int i, shift, index, indices;
- int pixel_limit = this->width * this->height;
-
- /* check if this frame is even supposed to change */
- if (this->size < 8)
- return;
-
- /* start after the chunk size */
- stream_ptr = 4;
-
- /* fetch the header */
- CHECK_STREAM_PTR(2);
- header = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 2;
-
- /* if a header is present, fetch additional decoding parameters */
- if (header & 0x0008) {
- CHECK_STREAM_PTR(8);
- start_line = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 4;
- lines_to_change = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 4;
- } else {
- start_line = 0;
- lines_to_change = this->height;
- }
-
- row_ptr = row_inc * start_line;
- while (lines_to_change--) {
- CHECK_STREAM_PTR(2);
- pixel_ptr = row_ptr + (this->buf[stream_ptr++] - 1);
-
- while ((rle_code = (signed char)this->buf[stream_ptr++]) != -1) {
- if (rle_code == 0) {
- /* there's another skip code in the stream */
- CHECK_STREAM_PTR(1);
- pixel_ptr += (this->buf[stream_ptr++] - 1);
- } else if (rle_code < 0) {
- /* decode the run length code */
- rle_code = -rle_code;
-
- /* get the next 32 bits from the stream and treat them as 8
- * 4-bit indices into the palette */
- CHECK_STREAM_PTR(4);
- indices = BE_32(&this->buf[stream_ptr]);
- stream_ptr += 4;
- for (i = 0, shift = 28; i < 8; i++, shift -= 4) {
- index = (indices >> shift) & 0x0F;
- y[i] = this->yuv_palette[index * 4 + 0];
- u[i] = this->yuv_palette[index * 4 + 1];
- v[i] = this->yuv_palette[index * 4 + 2];
- }
- CHECK_PIXEL_PTR(rle_code * 8);
- while (rle_code--) {
- for (i = 0; i < 8; i++) {
- yuv->y[pixel_ptr] = y[i];
- yuv->u[pixel_ptr] = u[i];
- yuv->v[pixel_ptr] = v[i];
- pixel_ptr++;
- }
- }
- } else {
- /* copy pixels directly to output */
- CHECK_STREAM_PTR(rle_code * 4);
- CHECK_PIXEL_PTR(rle_code * 8);
- while (rle_code--) {
- indices = BE_32(&this->buf[stream_ptr]);
- stream_ptr += 4;
- for (i = 0, shift = 28; i < 8; i++, shift -= 4) {
- index = (indices >> shift) & 0x0F;
- yuv->y[pixel_ptr] = this->yuv_palette[index * 4 + 0];
- yuv->u[pixel_ptr] = this->yuv_palette[index * 4 + 1];
- yuv->v[pixel_ptr] = this->yuv_palette[index * 4 + 2];
- pixel_ptr++;
- }
- }
- }
- }
-
- row_ptr += row_inc;
- }
-}
-
-static void decode_qtrle_8(qtrle_decoder_t *this) {
-
- int stream_ptr;
- int header;
- int start_line;
- int lines_to_change;
- signed char rle_code;
- int row_ptr, pixel_ptr;
- int row_inc = this->width;
- unsigned char y[4], u[4], v[4];
- yuv_planes_t *yuv = &this->yuv_planes;
- int i;
- int pixel_limit = this->width * this->height;
-
- /* check if this frame is even supposed to change */
- if (this->size < 8)
- return;
-
- /* start after the chunk size */
- stream_ptr = 4;
-
- /* fetch the header */
- CHECK_STREAM_PTR(2);
- header = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 2;
-
- /* if a header is present, fetch additional decoding parameters */
- if (header & 0x0008) {
- CHECK_STREAM_PTR(8);
- start_line = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 4;
- lines_to_change = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 4;
- } else {
- start_line = 0;
- lines_to_change = this->height;
- }
-
- row_ptr = row_inc * start_line;
- while (lines_to_change--) {
- CHECK_STREAM_PTR(2);
- pixel_ptr = row_ptr + (4 * (this->buf[stream_ptr++] - 1));
-
- while ((rle_code = (signed char)this->buf[stream_ptr++]) != -1) {
- if (rle_code == 0) {
- /* there's another skip code in the stream */
- pixel_ptr += (4 * (this->buf[stream_ptr++] - 1));
- CHECK_STREAM_PTR(1);
- } else if (rle_code < 0) {
- /* decode the run length code */
- rle_code = -rle_code;
- /* get the next 4 bytes from the stream, treat them as palette
- * indices, and output them to the rle_code times */
- CHECK_STREAM_PTR(4);
- for (i = 0; i < 4; i++) {
- y[i] = this->yuv_palette[this->buf[stream_ptr] * 4 + 0];
- u[i] = this->yuv_palette[this->buf[stream_ptr] * 4 + 1];
- v[i] = this->yuv_palette[this->buf[stream_ptr] * 4 + 2];
- stream_ptr++;
- }
- CHECK_PIXEL_PTR(rle_code * 4);
- while (rle_code--) {
- for (i = 0; i < 4; i++) {
- yuv->y[pixel_ptr] = y[i];
- yuv->u[pixel_ptr] = u[i];
- yuv->v[pixel_ptr] = v[i];
- pixel_ptr++;
- }
- }
- } else {
- CHECK_STREAM_PTR(rle_code);
- CHECK_PIXEL_PTR(rle_code);
-
- /* copy pixels directly to output */
- while (rle_code--) {
- for (i = 0; i < 4; i++) {
- yuv->y[pixel_ptr] =
- this->yuv_palette[this->buf[stream_ptr] * 4 + 0];
- yuv->u[pixel_ptr] =
- this->yuv_palette[this->buf[stream_ptr] * 4 + 1];
- yuv->v[pixel_ptr] =
- this->yuv_palette[this->buf[stream_ptr] * 4 + 2];
- stream_ptr++;
- pixel_ptr++;
- }
- }
- }
- }
-
- row_ptr += row_inc;
- }
-}
-
-static void decode_qtrle_16(qtrle_decoder_t *this) {
-
- int stream_ptr;
- int header;
- int start_line;
- int lines_to_change;
- signed char rle_code;
- int row_ptr, pixel_ptr;
- int row_inc = this->width;
- unsigned char r, g, b;
- unsigned char y, u, v;
- unsigned short packed_pixel;
- yuv_planes_t *yuv = &this->yuv_planes;
- int pixel_limit = this->width * this->height;
-
- /* check if this frame is even supposed to change */
- if (this->size < 8)
- return;
-
- /* start after the chunk size */
- stream_ptr = 4;
-
- /* fetch the header */
- CHECK_STREAM_PTR(2);
- header = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 2;
-
- /* if a header is present, fetch additional decoding parameters */
- if (header & 0x0008) {
- CHECK_STREAM_PTR(8);
- start_line = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 4;
- lines_to_change = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 4;
- } else {
- start_line = 0;
- lines_to_change = this->height;
- }
-
- row_ptr = row_inc * start_line;
- while (lines_to_change--) {
- CHECK_STREAM_PTR(2);
- pixel_ptr = row_ptr + (this->buf[stream_ptr++] - 1);
-
- while ((rle_code = (signed char)this->buf[stream_ptr++]) != -1) {
- if (rle_code == 0) {
- /* there's another skip code in the stream */
- CHECK_STREAM_PTR(1);
- pixel_ptr += (this->buf[stream_ptr++] - 1);
- }
- else if (rle_code < 0) {
- /* decode the run length code */
- rle_code = -rle_code;
- CHECK_STREAM_PTR(2);
- packed_pixel = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 2;
- UNPACK_RGB15(packed_pixel, r, g, b);
- y = COMPUTE_Y(r, g, b);
- u = COMPUTE_U(r, g, b);
- v = COMPUTE_V(r, g, b);
-
- CHECK_PIXEL_PTR(rle_code);
-
- while (rle_code--) {
- yuv->y[pixel_ptr] = y;
- yuv->u[pixel_ptr] = u;
- yuv->v[pixel_ptr] = v;
- pixel_ptr++;
- }
- } else {
- CHECK_PIXEL_PTR(rle_code);
- CHECK_STREAM_PTR(rle_code * 2);
-
- /* copy pixels directly to output */
- while (rle_code--) {
- packed_pixel = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 2;
- UNPACK_RGB15(packed_pixel, r, g, b);
- y = COMPUTE_Y(r, g, b);
- u = COMPUTE_U(r, g, b);
- v = COMPUTE_V(r, g, b);
- yuv->y[pixel_ptr] = y;
- yuv->u[pixel_ptr] = u;
- yuv->v[pixel_ptr] = v;
- pixel_ptr++;
- }
- }
- }
-
- row_ptr += row_inc;
- }
-}
-
-static void decode_qtrle_24(qtrle_decoder_t *this) {
-
- int stream_ptr;
- int header;
- int start_line;
- int lines_to_change;
- signed char rle_code;
- int row_ptr, pixel_ptr;
- int row_inc = this->width;
- unsigned char r, g, b;
- unsigned char y, u, v;
- yuv_planes_t *yuv = &this->yuv_planes;
- int pixel_limit = this->width * this->height;
-
- /* check if this frame is even supposed to change */
- if (this->size < 8)
- return;
-
- /* start after the chunk size */
- stream_ptr = 4;
-
- /* fetch the header */
- CHECK_STREAM_PTR(2);
- header = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 2;
-
- /* if a header is present, fetch additional decoding parameters */
- if (header & 0x0008) {
- CHECK_STREAM_PTR(8);
- start_line = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 4;
- lines_to_change = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 4;
- } else {
- start_line = 0;
- lines_to_change = this->height;
- }
-
- row_ptr = row_inc * start_line;
- while (lines_to_change--) {
- CHECK_STREAM_PTR(2);
- pixel_ptr = row_ptr + (this->buf[stream_ptr++] - 1);
-
- while ((rle_code = (signed char)this->buf[stream_ptr++]) != -1) {
- if (rle_code == 0) {
- /* there's another skip code in the stream */
- CHECK_STREAM_PTR(1);
- pixel_ptr += (this->buf[stream_ptr++] - 1);
- } else if (rle_code < 0) {
- /* decode the run length code */
- rle_code = -rle_code;
- CHECK_STREAM_PTR(3);
- r = this->buf[stream_ptr++];
- g = this->buf[stream_ptr++];
- b = this->buf[stream_ptr++];
- y = COMPUTE_Y(r, g, b);
- u = COMPUTE_U(r, g, b);
- v = COMPUTE_V(r, g, b);
-
- CHECK_PIXEL_PTR(rle_code);
-
- while (rle_code--) {
- yuv->y[pixel_ptr] = y;
- yuv->u[pixel_ptr] = u;
- yuv->v[pixel_ptr] = v;
- pixel_ptr++;
- }
- } else {
- CHECK_PIXEL_PTR(rle_code);
- CHECK_STREAM_PTR(rle_code * 3);
-
- /* copy pixels directly to output */
- while (rle_code--) {
- r = this->buf[stream_ptr++];
- g = this->buf[stream_ptr++];
- b = this->buf[stream_ptr++];
- y = COMPUTE_Y(r, g, b);
- u = COMPUTE_U(r, g, b);
- v = COMPUTE_V(r, g, b);
- yuv->y[pixel_ptr] = y;
- yuv->u[pixel_ptr] = u;
- yuv->v[pixel_ptr] = v;
- pixel_ptr++;
- }
- }
- }
-
- row_ptr += row_inc;
- }
-}
-
-static void decode_qtrle_32(qtrle_decoder_t *this) {
-
- int stream_ptr;
- int header;
- int start_line;
- int lines_to_change;
- signed char rle_code;
- int row_ptr, pixel_ptr;
- int row_inc = this->width;
- unsigned char r, g, b;
- unsigned char y, u, v;
- yuv_planes_t *yuv = &this->yuv_planes;
- int pixel_limit = this->width * this->height;
-
- /* check if this frame is even supposed to change */
- if (this->size < 8)
- return;
-
- /* start after the chunk size */
- stream_ptr = 4;
-
- /* fetch the header */
- CHECK_STREAM_PTR(2);
- header = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 2;
-
- /* if a header is present, fetch additional decoding parameters */
- if (header & 0x0008) {
- CHECK_STREAM_PTR(8);
- start_line = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 4;
- lines_to_change = BE_16(&this->buf[stream_ptr]);
- stream_ptr += 4;
- } else {
- start_line = 0;
- lines_to_change = this->height;
- }
-
- row_ptr = row_inc * start_line;
- while (lines_to_change--) {
- CHECK_STREAM_PTR(2);
- pixel_ptr = row_ptr + (this->buf[stream_ptr++] - 1);
-
- while ((rle_code = (signed char)this->buf[stream_ptr++]) != -1) {
- if (rle_code == 0) {
- /* there's another skip code in the stream */
- CHECK_STREAM_PTR(1);
- pixel_ptr += (this->buf[stream_ptr++] - 1);
- } else if (rle_code < 0) {
- /* decode the run length code */
- rle_code = -rle_code;
- CHECK_STREAM_PTR(4);
- stream_ptr++; /* skip alpha transparency (?) byte */
- r = this->buf[stream_ptr++];
- g = this->buf[stream_ptr++];
- b = this->buf[stream_ptr++];
- y = COMPUTE_Y(r, g, b);
- u = COMPUTE_U(r, g, b);
- v = COMPUTE_V(r, g, b);
-
- CHECK_PIXEL_PTR(rle_code);
-
- while (rle_code--) {
- yuv->y[pixel_ptr] = y;
- yuv->u[pixel_ptr] = u;
- yuv->v[pixel_ptr] = v;
- pixel_ptr++;
- }
- } else {
- CHECK_PIXEL_PTR(rle_code);
- CHECK_STREAM_PTR(rle_code * 4);
-
- /* copy pixels directly to output */
- while (rle_code--) {
- stream_ptr++; /* skip alpha transparency (?) byte */
- r = this->buf[stream_ptr++];
- g = this->buf[stream_ptr++];
- b = this->buf[stream_ptr++];
- y = COMPUTE_Y(r, g, b);
- u = COMPUTE_U(r, g, b);
- v = COMPUTE_V(r, g, b);
- yuv->y[pixel_ptr] = y;
- yuv->u[pixel_ptr] = u;
- yuv->v[pixel_ptr] = v;
- pixel_ptr++;
- }
- }
- }
-
- row_ptr += row_inc;
- }
-}
-
-/**************************************************************************
- * xine video plugin functions
- *************************************************************************/
-
-/*
- * This function receives a buffer of data from the demuxer layer and
- * figures out how to handle it based on its header flags.
- */
-static void qtrle_decode_data (video_decoder_t *this_gen,
- buf_element_t *buf) {
-
- qtrle_decoder_t *this = (qtrle_decoder_t *) this_gen;
- xine_bmiheader *bih;
- palette_entry_t *palette;
- int i;
- char codec_name[100];
-
- vo_frame_t *img; /* video out frame */
-
- /* a video decoder does not care about this flag (?) */
- if (buf->decoder_flags & BUF_FLAG_PREVIEW)
- return;
-
- if ((buf->decoder_flags & BUF_FLAG_SPECIAL) &&
- (buf->decoder_info[1] == BUF_SPECIAL_PALETTE)) {
- palette = (palette_entry_t *)buf->decoder_info_ptr[2];
- for (i = 0; i < buf->decoder_info[2]; i++) {
- this->yuv_palette[i * 4 + 0] =
- COMPUTE_Y(palette[i].r, palette[i].g, palette[i].b);
- this->yuv_palette[i * 4 + 1] =
- COMPUTE_U(palette[i].r, palette[i].g, palette[i].b);
- this->yuv_palette[i * 4 + 2] =
- COMPUTE_V(palette[i].r, palette[i].g, palette[i].b);
- }
- }
-
- if (buf->decoder_flags & BUF_FLAG_FRAMERATE) {
- this->video_step = buf->decoder_info[0];
- _x_stream_info_set(this->stream, XINE_STREAM_INFO_FRAME_DURATION, this->video_step);
- }
-
- if (buf->decoder_flags & BUF_FLAG_STDHEADER) { /* need to initialize */
- this->stream->video_out->open (this->stream->video_out, this->stream);
-
- if(this->buf)
- free(this->buf);
-
- bih = (xine_bmiheader *) buf->content;
- this->width = bih->biWidth;
- this->height = bih->biHeight;
- this->ratio = (double)this->width/(double)this->height;
- this->depth = bih->biBitCount;
-
- if (this->buf)
- free (this->buf);
- this->bufsize = VIDEOBUFSIZE;
- this->buf = malloc(this->bufsize);
- this->size = 0;
-
- init_yuv_planes(&this->yuv_planes, this->width, this->height);
-
- this->decoder_ok = 1;
-
- /* load the stream/meta info */
- sprintf(codec_name, "%d bpp Quicktime Animation (RLE)", this->depth & 0x1F);
- _x_meta_info_set(this->stream, XINE_META_INFO_VIDEOCODEC, codec_name);
-
- return;
- } else if (this->decoder_ok) {
-
- if (this->size + buf->size > this->bufsize) {
- this->bufsize = this->size + 2 * buf->size;
- this->buf = realloc (this->buf, this->bufsize);
- }
-
- xine_fast_memcpy (&this->buf[this->size], buf->content, buf->size);
-
- this->size += buf->size;
-
- if (buf->decoder_flags & BUF_FLAG_FRAME_END) {
-
- img = this->stream->video_out->get_frame (this->stream->video_out,
- this->width, this->height,
- this->ratio,
- XINE_IMGFMT_YUY2, VO_BOTH_FIELDS);
-
- switch (this->depth & 0x1F) {
-
- case 1:
- decode_qtrle_1(this);
- break;
-
- case 2:
- decode_qtrle_2(this);
- break;
-
- case 4:
- decode_qtrle_4(this);
- break;
-
- case 8:
- decode_qtrle_8(this);
- break;
-
- case 16:
- decode_qtrle_16(this);
- break;
-
- case 24:
- decode_qtrle_24(this);
- break;
-
- case 32:
- decode_qtrle_32(this);
- break;
-
- }
-
- yuv444_to_yuy2(&this->yuv_planes, img->base[0], img->pitches[0]);
-
- img->duration = this->video_step;
- img->pts = buf->pts;
- img->bad_frame = 0;
-
- img->draw(img, this->stream);
- img->free(img);
-
- this->size = 0;
- }
- }
-}
-
-/*
- * This function is called when xine needs to flush the system. Not
- * sure when or if this is used or even if it needs to do anything.
- */
-static void qtrle_flush (video_decoder_t *this_gen) {
-}
-
-/*
- * This function resets the video decoder.
- */
-static void qtrle_reset (video_decoder_t *this_gen) {
- qtrle_decoder_t *this = (qtrle_decoder_t *) this_gen;
-
- this->size = 0;
-}
-
-static void qtrle_discontinuity (video_decoder_t *this_gen) {
-}
-
-/*
- * This function frees the video decoder instance allocated to the decoder.
- */
-static void qtrle_dispose (video_decoder_t *this_gen) {
-
- qtrle_decoder_t *this = (qtrle_decoder_t *) this_gen;
-
- if (this->buf) {
- free (this->buf);
- this->buf = NULL;
- }
-
- if (this->decoder_ok) {
- this->decoder_ok = 0;
- this->stream->video_out->close(this->stream->video_out, this->stream);
- }
-
- free (this_gen);
-}
-
-static video_decoder_t *open_plugin (video_decoder_class_t *class_gen, xine_stream_t *stream) {
-
- qtrle_decoder_t *this ;
-
- this = (qtrle_decoder_t *) xine_xmalloc (sizeof (qtrle_decoder_t));
-
- this->video_decoder.decode_data = qtrle_decode_data;
- this->video_decoder.flush = qtrle_flush;
- this->video_decoder.reset = qtrle_reset;
- this->video_decoder.discontinuity = qtrle_discontinuity;
- this->video_decoder.dispose = qtrle_dispose;
- this->size = 0;
-
- this->stream = stream;
- this->class = (qtrle_class_t *) class_gen;
-
- this->decoder_ok = 0;
- this->buf = NULL;
-
- return &this->video_decoder;
-}
-
-static char *get_identifier (video_decoder_class_t *this) {
- return "QT RLE";
-}
-
-static char *get_description (video_decoder_class_t *this) {
- return "Quicktime Animation (RLE) video decoder plugin";
-}
-
-static void dispose_class (video_decoder_class_t *this) {
- free (this);
-}
-
-static void *init_plugin (xine_t *xine, void *data) {
-
- qtrle_class_t *this;
-
- this = (qtrle_class_t *) xine_xmalloc (sizeof (qtrle_class_t));
-
- this->decoder_class.open_plugin = open_plugin;
- this->decoder_class.get_identifier = get_identifier;
- this->decoder_class.get_description = get_description;
- this->decoder_class.dispose = dispose_class;
-
- return this;
-}
-
-/*
- * exported plugin catalog entry
- */
-static uint32_t video_types[] = {
- BUF_VIDEO_QTRLE,
- 0
-};
-
-static decoder_info_t dec_info_video = {
- video_types, /* supported types */
- 5 /* priority */
-};
-
-plugin_info_t xine_plugin_info[] = {
- /* type, API, "name", version, special_info, init_function */
- { PLUGIN_VIDEO_DECODER, 18, "qtrle", XINE_VERSION_CODE, &dec_info_video, init_plugin },
- { PLUGIN_NONE, 0, "", 0, NULL, NULL }
-};
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-27 11:02:42 +0000