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Diffstat (limited to 'src/libxinevdec/msvc.c')
-rw-r--r--src/libxinevdec/msvc.c415
1 files changed, 0 insertions, 415 deletions
diff --git a/src/libxinevdec/msvc.c b/src/libxinevdec/msvc.c
deleted file mode 100644
index a2be6dbc0..000000000
--- a/src/libxinevdec/msvc.c
+++ /dev/null
@@ -1,415 +0,0 @@
-/*
- * Copyright (C) 2002-2003 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
- *
- * by Ewald Snel <ewald@rambo.its.tudelft.nl>
- *
- * based on overview of Microsoft Video-1 algorithm
- * by Mike Melanson: http://www.pcisys.net/~melanson/codecs/video1.txt
- *
- * $Id: msvc.c,v 1.30 2004/02/09 22:04:11 jstembridge Exp $
- */
-
-#include <stdlib.h>
-#include <unistd.h>
-
-#include "xine_internal.h"
-#include "video_out.h"
-#include "buffer.h"
-#include "bswap.h"
-#include "xineutils.h"
-
-#define VIDEOBUFSIZE 128 * 1024
-
-typedef struct {
- uint16_t yu;
- uint16_t yv;
-} yuy2_t;
-
-typedef struct {
- video_decoder_class_t decoder_class;
-} msvc_class_t;
-
-typedef struct msvc_decoder_s {
- video_decoder_t video_decoder;
-
- msvc_class_t *class;
- xine_stream_t *stream;
-
- int64_t video_step;
- int decoder_ok;
-
- unsigned char *buf;
- int bufsize;
- int size;
-
- unsigned int coded_width;
- unsigned int coded_height;
- int pitch;
- int depth;
- uint8_t *current;
- yuy2_t color_table[256];
-
- unsigned int width;
- unsigned int height;
- double ratio;
-} msvc_decoder_t;
-
-/* taken from libw32dll */
-#define MAXSAMPLE 255
-#define CENTERSAMPLE 128
-
-#define SCALEBITS 16
-#define FIX(x) ( (int32_t) ( (x) * (1<<SCALEBITS) + 0.5 ) )
-#define ONE_HALF ( (int32_t) (1<< (SCALEBITS-1)) )
-#define CBCR_OFFSET (CENTERSAMPLE << SCALEBITS)
-
-static inline void rgb_to_yuy2 (const int bits, uint32_t rgb, yuy2_t *c) {
- uint8_t r, g, b;
- uint8_t y, u, v;
-
- if (bits == 15) {
- b = (rgb & 0x001F) << 3;
- g = (rgb & 0x03E0) >> 5 << 3;
- r = (rgb & 0x7C00) >> 10 << 3;
- } else {
- b = (rgb & 0x0000FF);
- g = (rgb & 0x00FF00) >> 8;
- r = (rgb & 0xFF0000) >> 16;
- }
-
- y = (FIX(0.299) * r + FIX(0.587) * g + FIX(0.114) * b + ONE_HALF) >> SCALEBITS;
- u = (- FIX(0.16874) * r - FIX(0.33126) * g + FIX(0.5) * b + CBCR_OFFSET + ONE_HALF-1) >> SCALEBITS;
- v = (FIX(0.5) * r - FIX(0.41869) * g - FIX(0.08131) * b + CBCR_OFFSET + ONE_HALF-1) >> SCALEBITS;
-
- c->yu = le2me_16 (y | (u << 8));
- c->yv = le2me_16 (y | (v << 8));
-}
-
-static int msvc_decode_frame (msvc_decoder_t *this, uint8_t *data, int size) {
- uint8_t *eod = (data + size);
- uint32_t ctrl, clr8, skip;
- int x, y, i, j;
- uint16_t *out[4];
- yuy2_t c[2];
-
- skip = 0;
-
- for (y=(this->coded_height - 4); y >= 0; y-=4) {
-
- out[0] = (uint16_t *) &this->current[y * this->pitch];
- out[1] = (uint16_t *) (((uint8_t *) out[0]) + this->pitch);
- out[2] = (uint16_t *) (((uint8_t *) out[1]) + this->pitch);
- out[3] = (uint16_t *) (((uint8_t *) out[2]) + this->pitch);
-
- for (x=0; x < this->coded_width; x+=4) {
- if (skip == 0 || --skip == 0) {
- if ((data + 2) >= eod)
- return 0;
-
- ctrl = LE_16 (data);
- data += 2;
-
- if ((ctrl & ((this->depth == 8) ? 0xF000 : 0x8000)) == 0x8000) {
- if ((ctrl & ~0x3FF) == 0x8400) {
- skip = (ctrl & 0x3FF);
- } else {
- if (this->depth == 8)
- c[0] = this->color_table[(ctrl & 0xFF)];
- else
- rgb_to_yuy2 (15, ctrl, &c[0]);
-
- for (i=0; i < 4; i++) {
- out[i][0] = c[0].yu;
- out[i][1] = c[0].yv;
- out[i][2] = c[0].yu;
- out[i][3] = c[0].yv;
- }
- }
- } else {
- if (this->depth == 8) {
- if ((data + 2) >= eod)
- return -1;
-
- c[1] = this->color_table[data[0]];
- c[0] = this->color_table[data[1]];
- clr8 = (ctrl >= 0x9000);
- data += 2;
- } else {
- if ((data + 4) >= eod)
- return -1;
-
- rgb_to_yuy2 (15, LE_16 (&data[0]), &c[1]);
- rgb_to_yuy2 (15, LE_16 (&data[2]), &c[0]);
- clr8 = (data[1] & 0x80);
- data += 4;
- }
-
- for (i=0; i < 4; i+=2) {
- for (j=0; j < 4; j+=2) {
- out[3-i][j] = c[(ctrl & 1) ].yu;
- out[3-i][j+1] = c[(ctrl & 2) >> 1].yv;
- out[2-i][j] = c[(ctrl & 16)>> 4].yu;
- out[2-i][j+1] = c[(ctrl & 32)>> 5].yv;
- ctrl >>= 2;
-
- if (clr8 && !(i & j)) {
- if (this->depth == 8) {
- if ((data + 2) >= eod)
- return -1;
-
- c[1] = this->color_table[data[0]];
- c[0] = this->color_table[data[1]];
- data += 2;
- } else {
- if ((data + 4) >= eod)
- return -1;
-
- rgb_to_yuy2 (15, LE_16 (&data[0]), &c[1]);
- rgb_to_yuy2 (15, LE_16 (&data[2]), &c[0]);
- data += 4;
- }
- }
- }
-
- ctrl >>= 4;
- }
- }
- }
-
- out[0] += 4;
- out[1] += 4;
- out[2] += 4;
- out[3] += 4;
- }
- }
-
- return 0;
-}
-
-static void msvc_decode_data (video_decoder_t *this_gen, buf_element_t *buf) {
- msvc_decoder_t *this = (msvc_decoder_t *) this_gen;
-
- int i;
- palette_entry_t *palette;
-
- 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++)
- rgb_to_yuy2(
- 32,
- (palette[i].r << 16) |
- (palette[i].g << 8) |
- (palette[i].b << 0),
- &this->color_table[i]);
- }
-
- 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) {
- xine_bmiheader *bih;
- int image_size;
-
- bih = (xine_bmiheader *) buf->content;
-
- this->width = (bih->biWidth + 1) & ~0x1;
- this->height = bih->biHeight;
- this->ratio = (double)this->width/(double)this->height;
- this->coded_width = (this->width + 3) & ~0x3;
- this->coded_height = (this->height + 3) & ~0x3;
- this->pitch = 2*this->coded_width;
- this->depth = bih->biBitCount;
-
- if (this->depth != 8 && this->depth != 16) {
- fprintf (stderr, "Unsupported bit depth (%d)\n", this->depth);
- return;
- }
-
- image_size = (this->pitch * this->coded_height);
- this->current = (uint8_t *) realloc (this->current, image_size);
-
- if (this->buf)
- free (this->buf);
- this->bufsize = VIDEOBUFSIZE;
- this->buf = malloc(this->bufsize);
- this->size = 0;
-
- 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 Video-1");
-
- } else if (this->decoder_ok && !(buf->decoder_flags & BUF_FLAG_SPECIAL)) {
-
- 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) {
-
- vo_frame_t *img;
- int result;
-
- result = msvc_decode_frame (this, this->buf, this->size);
-
- 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 = (result != 0);
-
- if (this->pitch == img->pitches[0]) {
- xine_fast_memcpy (img->base[0], this->current, img->pitches[0]*this->height);
- } else {
- uint8_t *src, *dst;
-
- src = (uint8_t *) this->current;
- dst = img->base[0];
-
- for (i=0; i < this->height; i++) {
- xine_fast_memcpy (dst, src, 2*this->width);
- src += this->pitch;
- dst += img->pitches[0];
- }
- }
-
- img->draw(img, this->stream);
- img->free(img);
-
- this->size = 0;
- }
- }
-}
-
-static void msvc_flush (video_decoder_t *this_gen) {
-}
-
-static void msvc_reset (video_decoder_t *this_gen) {
- msvc_decoder_t *this = (msvc_decoder_t *) this_gen;
-
- this->size = 0;
-}
-
-static void msvc_discontinuity (video_decoder_t *this_gen) {
-}
-
-static void msvc_dispose (video_decoder_t *this_gen) {
-
- msvc_decoder_t *this = (msvc_decoder_t *) this_gen;
-
- if (this->current) {
- free (this->current);
- this->current = NULL;
- }
-
- 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) {
-
- msvc_decoder_t *this ;
-
- this = (msvc_decoder_t *) xine_xmalloc (sizeof (msvc_decoder_t));
-
- this->video_decoder.decode_data = msvc_decode_data;
- this->video_decoder.flush = msvc_flush;
- this->video_decoder.reset = msvc_reset;
- this->video_decoder.discontinuity = msvc_discontinuity;
- this->video_decoder.dispose = msvc_dispose;
- this->size = 0;
-
- this->stream = stream;
- this->class = (msvc_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 "MSVC";
-}
-
-static char *get_description (video_decoder_class_t *this) {
- return "Microsoft Video-1 video decoder plugin";
-}
-
-static void dispose_class (video_decoder_class_t *this) {
- free (this);
-}
-
-static void *init_plugin (xine_t *xine, void *data) {
-
- msvc_class_t *this;
-
- this = (msvc_class_t *) xine_xmalloc (sizeof (msvc_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_MSVC,
- 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, "msvc", 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 2025-06-03 12:56:29 +0000