summaryrefslogtreecommitdiff
path: root/src/libxinevdec/msrle.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/libxinevdec/msrle.c')
-rw-r--r--src/libxinevdec/msrle.c377
1 files changed, 0 insertions, 377 deletions
diff --git a/src/libxinevdec/msrle.c b/src/libxinevdec/msrle.c
deleted file mode 100644
index ded2ed56a..000000000
--- a/src/libxinevdec/msrle.c
+++ /dev/null
@@ -1,377 +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
- *
- * MS RLE Decoder by Mike Melanson (melanson@pcisys.net)
- * For more information on the MS RLE format, visit:
- * http://www.pcisys.net/~melanson/codecs/
- *
- * $Id: msrle.c,v 1.26 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;
-} msrle_class_t;
-
-typedef struct msrle_decoder_s {
- video_decoder_t video_decoder; /* parent video decoder structure */
-
- msrle_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 */
-
- unsigned char yuv_palette[256 * 4];
- yuv_planes_t yuv_planes;
-
-} msrle_decoder_t;
-
-/**************************************************************************
- * MS RLE specific decode functions
- *************************************************************************/
-
-#define FETCH_NEXT_STREAM_BYTE() \
- if (stream_ptr >= this->size) \
- { \
- printf(_("MS RLE: stream ptr just went out of bounds (1)\n")); \
- return; \
- } \
- stream_byte = this->buf[stream_ptr++];
-
-static void decode_msrle8(msrle_decoder_t *this) {
-
- int stream_ptr = 0;
- unsigned char rle_code;
- unsigned char extra_byte;
- unsigned char stream_byte;
- int pixel_ptr = 0;
- int row_dec = this->yuv_planes.row_width;
- int row_ptr = (this->height - 1) * row_dec;
- int frame_size = this->yuv_planes.row_width * this->height;
- unsigned char y, u, v;
-
- 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;
- FETCH_NEXT_STREAM_BYTE();
- row_ptr -= stream_byte * row_dec;
- } else {
- /* copy pixels from encoded stream */
- if ((row_ptr + pixel_ptr + stream_byte > frame_size) ||
- (row_ptr < 0)) {
- xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG,
- "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 > this->size) {
- xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG,
- "MS RLE: stream ptr just went out of bounds (2)\n");
- return;
- }
-
- while (rle_code--) {
- FETCH_NEXT_STREAM_BYTE();
- y = this->yuv_palette[stream_byte * 4 + 0];
- u = this->yuv_palette[stream_byte * 4 + 1];
- v = this->yuv_palette[stream_byte * 4 + 2];
- this->yuv_planes.y[row_ptr + pixel_ptr] = y;
- this->yuv_planes.u[row_ptr + pixel_ptr] = u;
- this->yuv_planes.v[row_ptr + pixel_ptr] = v;
- pixel_ptr++;
- }
-
- /* 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 > frame_size) ||
- (row_ptr < 0)) {
- xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG,
- "MS RLE: frame ptr just went out of bounds (2)\n");
- return;
- }
-
- FETCH_NEXT_STREAM_BYTE();
-
- y = this->yuv_palette[stream_byte * 4 + 0];
- u = this->yuv_palette[stream_byte * 4 + 1];
- v = this->yuv_palette[stream_byte * 4 + 2];
-
- while(rle_code--) {
- this->yuv_planes.y[row_ptr + pixel_ptr] = y;
- this->yuv_planes.u[row_ptr + pixel_ptr] = u;
- this->yuv_planes.v[row_ptr + pixel_ptr] = v;
- pixel_ptr++;
- }
- }
- }
-
- /* one last sanity check on the way out */
- if (stream_ptr < this->size)
- xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG,
- "MS RLE: ended frame decode with bytes left over (%d < %d)\n",
- stream_ptr, this->size);
-}
-
-/**************************************************************************
- * 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 msrle_decode_data (video_decoder_t *this_gen,
- buf_element_t *buf) {
-
- msrle_decoder_t *this = (msrle_decoder_t *) this_gen;
- xine_bmiheader *bih;
- palette_entry_t *palette;
- int i;
- vo_frame_t *img; /* video out frame */
-
- /* a video decoder does not care about this flag (?) */
- if (buf->decoder_flags & BUF_FLAG_PREVIEW)
- return;
-
- /* load the palette */
- 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 + 3) & ~0x03;
- this->height = (bih->biHeight + 3) & ~0x03;
- this->ratio = (double)this->width/(double)this->height;
-
- 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->stream->video_out->open (this->stream->video_out, this->stream);
- this->decoder_ok = 1;
-
- /* load the stream/meta info */
- _x_meta_info_set(this->stream, XINE_META_INFO_VIDEOCODEC, "Microsoft RLE");
-
- 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);
-
- img->duration = this->video_step;
- img->pts = buf->pts;
- img->bad_frame = 0;
-
- decode_msrle8(this);
- yuv444_to_yuy2(&this->yuv_planes, img->base[0], img->pitches[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 msrle_flush (video_decoder_t *this_gen) {
-}
-
-/*
- * This function resets the video decoder.
- */
-static void msrle_reset (video_decoder_t *this_gen) {
- msrle_decoder_t *this = (msrle_decoder_t *) this_gen;
-
- this->size = 0;
-}
-
-static void msrle_discontinuity (video_decoder_t *this_gen) {
-}
-
-/*
- * This function frees the video decoder instance allocated to the decoder.
- */
-static void msrle_dispose (video_decoder_t *this_gen) {
- msrle_decoder_t *this = (msrle_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) {
-
- msrle_decoder_t *this ;
-
- this = (msrle_decoder_t *) xine_xmalloc (sizeof (msrle_decoder_t));
-
- this->video_decoder.decode_data = msrle_decode_data;
- this->video_decoder.flush = msrle_flush;
- this->video_decoder.reset = msrle_reset;
- this->video_decoder.discontinuity = msrle_discontinuity;
- this->video_decoder.dispose = msrle_dispose;
- this->size = 0;
-
- this->stream = stream;
- this->class = (msrle_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 "MS RLE";
-}
-
-static char *get_description (video_decoder_class_t *this) {
- return "Microsoft RLE video decoder plugin";
-}
-
-static void dispose_class (video_decoder_class_t *this) {
- free (this);
-}
-
-static void *init_plugin (xine_t *xine, void *data) {
-
- msrle_class_t *this;
-
- this = (msrle_class_t *) xine_xmalloc (sizeof (msrle_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_MSRLE,
- 0
- };
-
-static decoder_info_t dec_info_video = {
- video_types, /* supported types */
- 1 /* priority */
-};
-
-plugin_info_t xine_plugin_info[] = {
- /* type, API, "name", version, special_info, init_function */
- { PLUGIN_VIDEO_DECODER, 18, "msrle", 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 11:06:24 +0000