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-rw-r--r--src/video_dec/image.c306
1 files changed, 306 insertions, 0 deletions
diff --git a/src/video_dec/image.c b/src/video_dec/image.c
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index 000000000..e91588702
--- /dev/null
+++ b/src/video_dec/image.c
@@ -0,0 +1,306 @@
+/*
+ * Copyright (C) 2003-2005 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * a image video decoder
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#define LOG_MODULE "image_video_decoder"
+#define LOG_VERBOSE
+/*
+#define LOG
+*/
+
+#include <wand/magick_wand.h>
+#ifdef PACKAGE_NAME
+#undef PACKAGE_BUGREPORT
+#undef PACKAGE_NAME
+#undef PACKAGE_STRING
+#undef PACKAGE_TARNAME
+#undef PACKAGE_VERSION
+#endif
+
+#include <xine/xine_internal.h>
+#include <xine/video_out.h>
+#include <xine/buffer.h>
+#include <xine/xineutils.h>
+#include "bswap.h"
+
+#ifdef HAVE_GRAPHICSMAGICK
+# define MAGICK_VERSION 0x670
+#else
+# if !defined(MagickLibVersion) || MagickLibVersion < 0x671
+# define MAGICK_VERSION 0x670
+#else
+# define MAGICK_VERSION MagickLibVersion
+# endif
+#endif
+
+
+typedef struct {
+ video_decoder_class_t decoder_class;
+
+ /*
+ * private variables
+ */
+
+} image_class_t;
+
+
+typedef struct image_decoder_s {
+ video_decoder_t video_decoder;
+
+ image_class_t *cls;
+
+ xine_stream_t *stream;
+ int video_open;
+
+ unsigned char *image;
+ int index;
+
+} image_decoder_t;
+
+
+static void image_decode_data (video_decoder_t *this_gen, buf_element_t *buf) {
+ image_decoder_t *this = (image_decoder_t *) this_gen;
+
+ if (!this->video_open) {
+ lprintf("opening video\n");
+ (this->stream->video_out->open) (this->stream->video_out, this->stream);
+ this->video_open = 1;
+ }
+
+ xine_buffer_copyin(this->image, this->index, buf->mem, buf->size);
+ this->index += buf->size;
+
+ if (buf->decoder_flags & BUF_FLAG_FRAME_END) {
+ int width, height, i;
+ int status;
+ MagickWand *wand;
+ uint8_t *img_buf, *img_buf_ptr;
+ yuv_planes_t yuv_planes;
+ vo_frame_t *img;
+
+ /*
+ * this->image -> rgb data
+ */
+#if MAGICK_VERSION < 0x671
+ InitializeMagick(NULL);
+#else
+ MagickWandGenesis();
+#endif
+ wand = NewMagickWand();
+ status = MagickReadImageBlob(wand, this->image, this->index);
+
+ this->index = 0;
+
+ if (!status) {
+ DestroyMagickWand(wand);
+#if MAGICK_VERSION < 0x671
+ DestroyMagick();
+#else
+ MagickWandTerminus();
+#endif
+ lprintf("error loading image\n");
+ return;
+ }
+
+ width = MagickGetImageWidth(wand) & ~1; /* must be even for init_yuv_planes */
+ height = MagickGetImageHeight(wand);
+ img_buf = malloc(width * height * 3);
+#if MAGICK_VERSION < 0x671
+ MagickGetImagePixels(wand, 0, 0, width, height, "RGB", CharPixel, img_buf);
+ DestroyMagickWand(wand);
+ DestroyMagick();
+#else
+ MagickExportImagePixels(wand, 0, 0, width, height, "RGB", CharPixel, img_buf);
+ DestroyMagickWand(wand);
+ MagickWandTerminus();
+#endif
+
+ _x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_WIDTH, width);
+ _x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_HEIGHT, height);
+
+ lprintf("image loaded successfully\n");
+
+ /*
+ * rgb data -> yuv_planes
+ */
+ init_yuv_planes(&yuv_planes, width, height);
+
+ img_buf_ptr = img_buf;
+ for (i=0; i < width*height; i++) {
+ uint8_t r = *(img_buf_ptr++);
+ uint8_t g = *(img_buf_ptr++);
+ uint8_t b = *(img_buf_ptr++);
+
+ yuv_planes.y[i] = COMPUTE_Y(r, g, b);
+ yuv_planes.u[i] = COMPUTE_U(r, g, b);
+ yuv_planes.v[i] = COMPUTE_V(r, g, b);
+ }
+ free(img_buf);
+
+ /*
+ * alloc and draw video frame
+ */
+ img = this->stream->video_out->get_frame (this->stream->video_out, width,
+ height, (double)width/(double)height,
+ XINE_IMGFMT_YUY2,
+ VO_BOTH_FIELDS);
+ img->pts = buf->pts;
+ img->duration = 3600;
+ img->bad_frame = 0;
+
+ yuv444_to_yuy2(&yuv_planes, img->base[0], img->pitches[0]);
+ free_yuv_planes(&yuv_planes);
+
+ _x_stream_info_set(this->stream, XINE_STREAM_INFO_FRAME_DURATION, img->duration);
+
+ img->draw(img, this->stream);
+ img->free(img);
+ }
+}
+
+
+static void image_flush (video_decoder_t *this_gen) {
+ /* image_decoder_t *this = (image_decoder_t *) this_gen; */
+
+ /*
+ * flush out any frames that are still stored in the decoder
+ */
+}
+
+
+static void image_reset (video_decoder_t *this_gen) {
+ image_decoder_t *this = (image_decoder_t *) this_gen;
+
+ /*
+ * reset decoder after engine flush (prepare for new
+ * video data not related to recently decoded data)
+ */
+
+ this->index = 0;
+}
+
+
+static void image_discontinuity (video_decoder_t *this_gen) {
+ /* image_decoder_t *this = (image_decoder_t *) this_gen; */
+
+ /*
+ * a time reference discontinuity has happened.
+ * that is, it must forget any currently held pts value
+ */
+}
+
+static void image_dispose (video_decoder_t *this_gen) {
+ image_decoder_t *this = (image_decoder_t *) this_gen;
+
+ if (this->video_open) {
+ lprintf("closing video\n");
+
+ this->stream->video_out->close(this->stream->video_out, this->stream);
+ this->video_open = 0;
+ }
+
+ xine_buffer_free(this->image);
+
+ lprintf("closed\n");
+ free (this);
+}
+
+
+static video_decoder_t *open_plugin (video_decoder_class_t *class_gen,
+ xine_stream_t *stream) {
+
+ image_class_t *cls = (image_class_t *) class_gen;
+ image_decoder_t *this;
+
+ lprintf("opened\n");
+
+ this = (image_decoder_t *) calloc(1, sizeof(image_decoder_t));
+
+ this->video_decoder.decode_data = image_decode_data;
+ this->video_decoder.flush = image_flush;
+ this->video_decoder.reset = image_reset;
+ this->video_decoder.discontinuity = image_discontinuity;
+ this->video_decoder.dispose = image_dispose;
+ this->cls = cls;
+ this->stream = stream;
+
+ /*
+ * initialisation of privates
+ */
+
+ this->image = xine_buffer_init(10240);
+
+ return &this->video_decoder;
+}
+
+/*
+ * image plugin class
+ */
+static void *init_class (xine_t *xine, void *data) {
+
+ image_class_t *this;
+
+ this = (image_class_t *) calloc(1, sizeof(image_class_t));
+
+ this->decoder_class.open_plugin = open_plugin;
+ this->decoder_class.identifier = "imagevdec";
+ this->decoder_class.description = N_("image video decoder plugin");
+ this->decoder_class.dispose = default_video_decoder_class_dispose;
+
+ /*
+ * initialisation of privates
+ */
+
+ lprintf("class opened\n");
+
+ return this;
+}
+
+/*
+ * exported plugin catalog entry
+ */
+
+static const uint32_t supported_types[] = { BUF_VIDEO_IMAGE,
+ 0 };
+
+static const decoder_info_t dec_info_image = {
+ supported_types, /* supported types */
+ 6 /* priority */
+};
+
+const plugin_info_t xine_plugin_info[] EXPORTED = {
+ /* type, API, "name", version, special_info, init_function */
+ { PLUGIN_VIDEO_DECODER, 19, "image", XINE_VERSION_CODE, &dec_info_image, init_class },
+ { PLUGIN_NONE, 0, "", 0, NULL, NULL }
+};
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-25 14:01:26 +0000