diff options
Diffstat (limited to 'src/libxinevdec/yuv.c')
-rw-r--r-- | src/libxinevdec/yuv.c | 394 |
1 files changed, 0 insertions, 394 deletions
diff --git a/src/libxinevdec/yuv.c b/src/libxinevdec/yuv.c deleted file mode 100644 index 6cb1b240c..000000000 --- a/src/libxinevdec/yuv.c +++ /dev/null @@ -1,394 +0,0 @@ -/* - * Copyright (C) 2000-2004 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 - * - * YUV "Decoder" by Mike Melanson (melanson@pcisys.net) - * Actually, this decoder just reorganizes chunks of raw YUV data in such - * a way that xine can display them. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#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; -} yuv_class_t; - -typedef struct yuv_decoder_s { - video_decoder_t video_decoder; /* parent video decoder structure */ - - yuv_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 progressive; - int top_field_first; - -} yuv_decoder_t; - -/************************************************************************** - * 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 yuv_decode_data (video_decoder_t *this_gen, - buf_element_t *buf) { - - yuv_decoder_t *this = (yuv_decoder_t *) this_gen; - xine_bmiheader *bih; - - 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_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); - - bih = (xine_bmiheader *) buf->content; - this->width = (bih->biWidth + 3) & ~0x03; - this->height = (bih->biHeight + 3) & ~0x03; - - if (buf->decoder_flags & BUF_FLAG_ASPECT) - this->ratio = (double)buf->decoder_info[1] / (double)buf->decoder_info[2]; - else - this->ratio = (double)this->width / (double)this->height; - - this->progressive = buf->decoder_info[3]; - this->top_field_first = buf->decoder_info[4]; - - if (this->buf) { - free (this->buf); - this->buf = NULL; - } - - this->bufsize = VIDEOBUFSIZE; - this->buf = malloc(this->bufsize); - this->size = 0; - - this->decoder_ok = 1; - - /* load the stream/meta info */ - switch (buf->type) { - - case BUF_VIDEO_YUY2: - _x_meta_info_set_utf8(this->stream, XINE_META_INFO_VIDEOCODEC, "Raw YUY2"); - break; - - case BUF_VIDEO_YV12: - _x_meta_info_set_utf8(this->stream, XINE_META_INFO_VIDEOCODEC, "Raw YV12"); - break; - - case BUF_VIDEO_YVU9: - _x_meta_info_set_utf8(this->stream, XINE_META_INFO_VIDEOCODEC, "Raw YVU9"); - break; - - case BUF_VIDEO_GREY: - _x_meta_info_set_utf8(this->stream, XINE_META_INFO_VIDEOCODEC, "Greyscale YUV"); - break; - - case BUF_VIDEO_I420: - _x_meta_info_set_utf8(this->stream, XINE_META_INFO_VIDEOCODEC, "Raw I420"); - break; - - } - - _x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_WIDTH, this->width); - _x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_HEIGHT, this->height); - _x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_RATIO, this->ratio*10000); - - return; - } else if (this->decoder_ok && !(buf->decoder_flags & BUF_FLAG_SPECIAL)) { - uint8_t *src; - - /* if buffer contains an entire frame then there's no need to copy it - * into our internal buffer */ - if ((buf->decoder_flags & BUF_FLAG_FRAME_START) && - (buf->decoder_flags & BUF_FLAG_FRAME_END)) - src = buf->content; - else { - 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; - - src = this->buf; - } - - if (buf->decoder_flags & BUF_FLAG_FRAME_END) { - - if (buf->type == BUF_VIDEO_YUY2) { - - img = this->stream->video_out->get_frame (this->stream->video_out, - this->width, this->height, - this->ratio, XINE_IMGFMT_YUY2, VO_BOTH_FIELDS); - - yuy2_to_yuy2( - /* src */ - src, this->width*2, - /* dst */ - img->base[0], img->pitches[0], - /* width x height */ - this->width, this->height); - - } else if (buf->type == BUF_VIDEO_YV12) { - - img = this->stream->video_out->get_frame (this->stream->video_out, - this->width, this->height, - this->ratio, XINE_IMGFMT_YV12, VO_BOTH_FIELDS); - - yv12_to_yv12( - /* Y */ - src, this->width, - img->base[0], img->pitches[0], - /* U */ - src + (this->width * this->height * 5/4), this->width/2, - img->base[1], img->pitches[1], - /* V */ - src + (this->width * this->height), this->width/2, - img->base[2], img->pitches[2], - /* width x height */ - this->width, this->height); - - } else if (buf->type == BUF_VIDEO_I420) { - - img = this->stream->video_out->get_frame (this->stream->video_out, - this->width, this->height, - this->ratio, XINE_IMGFMT_YV12, VO_BOTH_FIELDS); - - yv12_to_yv12( - /* Y */ - src, this->width, - img->base[0], img->pitches[0], - /* U */ - src + (this->width * this->height), this->width/2, - img->base[1], img->pitches[1], - /* V */ - src + (this->width * this->height * 5/4), this->width/2, - img->base[2], img->pitches[2], - /* width x height */ - this->width, this->height); - - } else if (buf->type == BUF_VIDEO_YVU9) { - - img = this->stream->video_out->get_frame (this->stream->video_out, - this->width, this->height, - this->ratio, XINE_IMGFMT_YV12, VO_BOTH_FIELDS); - - - yuv9_to_yv12( - /* Y */ - src, - this->width, - img->base[0], - img->pitches[0], - /* U */ - src + (this->width * this->height), - this->width / 4, - img->base[1], - img->pitches[1], - /* V */ - src + (this->width * this->height) + - (this->width * this->height / 16), - this->width / 4, - img->base[2], - img->pitches[2], - /* width x height */ - this->width, - this->height); - - } else if (buf->type == BUF_VIDEO_GREY) { - - img = this->stream->video_out->get_frame (this->stream->video_out, - this->width, this->height, - this->ratio, XINE_IMGFMT_YV12, VO_BOTH_FIELDS); - - xine_fast_memcpy(img->base[0], src, this->width * this->height); - memset( img->base[1], 0x80, this->width * this->height / 4 ); - memset( img->base[2], 0x80, this->width * this->height / 4 ); - - } else { - - /* just allocate something to avoid compiler warnings */ - img = this->stream->video_out->get_frame (this->stream->video_out, - this->width, this->height, - this->ratio, XINE_IMGFMT_YV12, VO_BOTH_FIELDS); - - } - - 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 yuv_flush (video_decoder_t *this_gen) { -} - -/* - * This function resets the video decoder. - */ -static void yuv_reset (video_decoder_t *this_gen) { - yuv_decoder_t *this = (yuv_decoder_t *) this_gen; - - this->size = 0; -} - -static void yuv_discontinuity (video_decoder_t *this_gen) { -} - -/* - * This function frees the video decoder instance allocated to the decoder. - */ -static void yuv_dispose (video_decoder_t *this_gen) { - yuv_decoder_t *this = (yuv_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) { - - yuv_decoder_t *this ; - - this = (yuv_decoder_t *) calloc(1, sizeof(yuv_decoder_t)); - - this->video_decoder.decode_data = yuv_decode_data; - this->video_decoder.flush = yuv_flush; - this->video_decoder.reset = yuv_reset; - this->video_decoder.discontinuity = yuv_discontinuity; - this->video_decoder.dispose = yuv_dispose; - this->size = 0; - - this->stream = stream; - this->class = (yuv_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 "YUV"; -} - -static char *get_description (video_decoder_class_t *this) { - return "Raw YUV video decoder plugin"; -} - -static void dispose_class (video_decoder_class_t *this) { - free (this); -} - -static void *init_plugin (xine_t *xine, void *data) { - - yuv_class_t *this; - - this = (yuv_class_t *) calloc(1, sizeof(yuv_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 const uint32_t video_types[] = { - BUF_VIDEO_YUY2, - BUF_VIDEO_YV12, - BUF_VIDEO_YVU9, - BUF_VIDEO_GREY, - BUF_VIDEO_I420, - 0 - }; - -static const decoder_info_t dec_info_video = { - video_types, /* supported types */ - 1 /* priority */ -}; - -const plugin_info_t xine_plugin_info[] EXPORTED = { - /* type, API, "name", version, special_info, init_function */ - { PLUGIN_VIDEO_DECODER, 18, "yuv", XINE_VERSION_CODE, &dec_info_video, init_plugin }, - { PLUGIN_NONE, 0, "", 0, NULL, NULL } -}; |