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path: root/src/libmpeg2new/xine_mpeg2new_decoder.c
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Diffstat (limited to 'src/libmpeg2new/xine_mpeg2new_decoder.c')
-rw-r--r--src/libmpeg2new/xine_mpeg2new_decoder.c525
1 files changed, 0 insertions, 525 deletions
diff --git a/src/libmpeg2new/xine_mpeg2new_decoder.c b/src/libmpeg2new/xine_mpeg2new_decoder.c
deleted file mode 100644
index 252cfcc54..000000000
--- a/src/libmpeg2new/xine_mpeg2new_decoder.c
+++ /dev/null
@@ -1,525 +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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- *
- * stuff needed to turn libmpeg2 into a xine decoder plugin
- */
-
-#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 <inttypes.h>
-#include <assert.h>
-
-#include "./include/mpeg2.h"
-#include "xine_internal.h"
-#include "video_out.h"
-#include "buffer.h"
-
-/*
-#define LOG
-#define LOG_FRAME_ALLOC_FREE
-#define LOG_ENTRY
-#define LOG_FRAME_COUNTER
-*/
-
-#define _x_abort() do {} while (0)
-
-typedef struct {
- video_decoder_class_t decoder_class;
-} mpeg2_class_t;
-
-typedef struct {
- uint32_t id;
- vo_frame_t * img;
-} img_state_t;
-
-typedef struct mpeg2_video_decoder_s {
- video_decoder_t video_decoder;
- mpeg2dec_t *mpeg2dec;
- mpeg2_class_t *class;
- xine_stream_t *stream;
- int32_t force_aspect;
- int force_pan_scan;
- double ratio;
- img_state_t img_state[30];
- uint32_t frame_number;
- uint32_t rff_pattern;
-
-} mpeg2_video_decoder_t;
-
-#ifndef LOG_FRAME_ALLOC_FREE
-inline static void mpeg2_video_print_bad_state(img_state_t * img_state) {}
-#else
-static void mpeg2_video_print_bad_state(img_state_t * img_state) {
- int32_t n,m;
- m=0;
- for(n=0;n<30;n++) {
- if (img_state[n].id>0) {
- printf("%d = %u\n",n, img_state[n].id);
- m++;
- }
- }
- if (m > 3) _x_abort();
- if (m == 0) printf("NO FRAMES\n");
-}
-#endif
-
-static void mpeg2_video_free_all(img_state_t * img_state) {
- int32_t n,m;
- vo_frame_t * img;
- printf("libmpeg2new:free_all\n");
- for(n=0;n<30;n++) {
- if (img_state[n].id>0) {
- img = img_state[n].img;
- img->free(img);
- img_state[n].id = 0;
- }
- }
-}
-
-
-static void mpeg2_video_print_fbuf(const mpeg2_fbuf_t * fbuf) {
- printf("%p",fbuf);
- vo_frame_t * img;
- if (fbuf) {
- img = (vo_frame_t *) fbuf->id;
- if (img) {
- printf (", img=%p, (id=%d)\n",
- img, img->id);
- } else {
- printf (", img=NULL\n");
- }
- } else {
- printf ("\n");
- }
-}
-
-static void mpeg2_video_decode_data (video_decoder_t *this_gen, buf_element_t *buf_element) {
- mpeg2_video_decoder_t *this = (mpeg2_video_decoder_t *) this_gen;
- uint8_t * current = buf_element->content;
- uint8_t * end = buf_element->content + buf_element->size;
- const mpeg2_info_t * info;
- mpeg2_state_t state;
- vo_frame_t * img;
- uint32_t picture_structure;
- int32_t frame_skipping;
-
- /* handle aspect hints from xine-dvdnav */
- if (buf_element->decoder_flags & BUF_FLAG_SPECIAL) {
- if (buf_element->decoder_info[1] == BUF_SPECIAL_ASPECT) {
- this->force_aspect = buf_element->decoder_info[2];
- if (buf_element->decoder_info[3] == 0x1 && buf_element->decoder_info[2] == 3)
- /* letterboxing is denied, we have to do pan&scan */
- this->force_pan_scan = 1;
- else
- this->force_pan_scan = 0;
- }
-
- return;
- }
-
- if (buf_element->decoder_flags != 0) return;
-
-#ifdef LOG_ENTRY
- printf ("libmpeg2: decode_data: enter\n");
-#endif
-
- mpeg2_buffer (this->mpeg2dec, current, end);
-
- info = mpeg2_info (this->mpeg2dec);
-
- while ((state = mpeg2_parse (this->mpeg2dec)) != STATE_BUFFER) {
- switch (state) {
- case STATE_SEQUENCE:
- /* might set nb fbuf, convert format, stride */
- /* might set fbufs */
- _x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_BITRATE, info->sequence->byte_rate * 8);
- _x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_WIDTH, info->sequence->picture_width);
- _x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_HEIGHT, info->sequence->picture_height);
- _x_stream_info_set(this->stream, XINE_STREAM_INFO_FRAME_DURATION, info->sequence->frame_period / 300);
- if (this->force_aspect) ((mpeg2_sequence_t *)info->sequence)->pixel_width = this->force_aspect; /* ugly... */
- switch (info->sequence->pixel_width) {
- case 3:
- this->ratio = 16.0 / 9.0;
- break;
- case 4:
- this->ratio = 2.11;
- break;
- case 2:
- this->ratio = 4.0 / 3.0;
- break;
- case 1:
- default:
- this->ratio = (double)info->sequence->picture_width/(double)info->sequence->picture_height;
- break;
- }
- _x_stream_info_set(this->stream, XINE_STREAM_INFO_VIDEO_RATIO, (int)(10000*this->ratio));
-
- if (info->sequence->flags & SEQ_FLAG_MPEG2) {
- _x_meta_info_set_utf8(this->stream, XINE_META_INFO_VIDEOCODEC, "MPEG 2 (libmpeg2new)");
- } else {
- _x_meta_info_set_utf8(this->stream, XINE_META_INFO_VIDEOCODEC, "MPEG 1 (libmpeg2new)");
- }
-
- break;
- case STATE_PICTURE:
- /* might skip */
- /* might set fbuf */
- if (info->current_picture->nb_fields == 1) {
- picture_structure = info->current_picture->flags & PIC_FLAG_TOP_FIELD_FIRST ? VO_TOP_FIELD : VO_BOTTOM_FIELD;
- } else {
- picture_structure = VO_BOTH_FIELDS;
- }
-
- img = this->stream->video_out->get_frame (this->stream->video_out,
- info->sequence->picture_width,
- info->sequence->picture_height,
- this->ratio,
- XINE_IMGFMT_YV12,
- picture_structure);
- this->frame_number++;
-#ifdef LOG_FRAME_COUNTER
- printf("libmpeg2:frame_number=%d\n",this->frame_number);
-#endif
- img->top_field_first = info->current_picture->flags & PIC_FLAG_TOP_FIELD_FIRST ? 1 : 0;
- img->repeat_first_field = (info->current_picture->nb_fields > 2) ? 1 : 0;
- img->duration=info->sequence->frame_period / 300;
- if( ((this->rff_pattern & 0xff) == 0xaa ||
- (this->rff_pattern & 0xff) == 0x55) ) {
- /* special case for ntsc 3:2 pulldown */
- img->duration += img->duration/4;
- } else {
- if( img->repeat_first_field ) {
- img->duration = (img->duration * info->current_picture->nb_fields) / 2;
- }
- }
-
- if ((info->current_picture->flags & 7) == 1) {
- img->pts=buf_element->pts; /* If an I frame, use PTS */
- } else {
- img->pts=0;
- }
-
-
-#ifdef LOG_FRAME_ALLOC_FREE
- printf ("libmpeg2:decode_data:get_frame xine=%p (id=%d)\n", img,img->id);
-#endif
- if (this->img_state[img->id].id != 0) {
- printf ("libmpeg2:decode_data:get_frame id=%d BAD STATE:%d\n", img->id, this->img_state[img->id].id);
- _x_abort();
- }
-
- this->img_state[img->id].id = 1;
- this->img_state[img->id].img = img;
-
- mpeg2_set_buf (this->mpeg2dec, img->base, img);
- break;
- case STATE_SLICE:
- case STATE_END:
-#if 0
- printf("libmpeg2:decode_data:current_fbuf=");
- mpeg2_video_print_fbuf(info->current_fbuf);
- printf("libmpeg2:decode_data:display_fbuf=");
- mpeg2_video_print_fbuf(info->display_fbuf);
- printf("libmpeg2:decode_data:discard_fbuf=");
- mpeg2_video_print_fbuf(info->discard_fbuf);
-#endif
- /* draw current picture */
- /* might free frame buffer */
- if (info->display_fbuf && info->display_fbuf->id) {
- img = (vo_frame_t *) info->display_fbuf->id;
- /* this should be used to detect any special rff pattern */
- this->rff_pattern = this->rff_pattern << 1;
- this->rff_pattern |= img->repeat_first_field;
-
-#ifdef LOG_FRAME_ALLOC_FREE
- printf ("libmpeg2:decode_data:draw_frame xine=%p, fbuf=%p, id=%d \n", img, info->display_fbuf, img->id);
-#endif
- if (this->img_state[img->id].id != 1) {
- printf ("libmpeg2:decode_data:draw_frame id=%d BAD STATE:%d\n", img->id, this->img_state[img->id].id);
- _x_abort();
- }
- if (this->img_state[img->id].id == 1) {
- frame_skipping = img->draw (img, this->stream);
- /* FIXME: Handle skipping */
- this->img_state[img->id].id = 2;
- }
-
- }
- if (info->discard_fbuf && !info->discard_fbuf->id) {
- printf ("libmpeg2:decode_data:BAD free_frame discard: xine=%p, fbuf=%p\n", info->discard_fbuf->id, info->discard_fbuf);
- //_x_abort();
- }
- if (info->discard_fbuf && info->discard_fbuf->id) {
- img = (vo_frame_t *) info->discard_fbuf->id;
-#ifdef LOG_FRAME_ALLOC_FREE
- printf ("libmpeg2:decode_data:free_frame xine=%p, fbuf=%p,id=%d\n", img, info->discard_fbuf, img->id);
-#endif
- if (this->img_state[img->id].id != 2) {
- printf ("libmpeg2:decode_data:free_frame id=%d BAD STATE:%d\n", img->id, this->img_state[img->id].id);
- _x_abort();
- }
- if (this->img_state[img->id].id == 2) {
- img->free(img);
- this->img_state[img->id].id = 0;
- }
- }
-#ifdef LOG_FRAME_ALLOC_FREE
- mpeg2_video_print_bad_state(this->img_state);
-#endif
- break;
- case STATE_GOP:
- break;
- default:
- printf("libmpeg2new: STATE unknown %d\n",state);
- break;
- }
-
- }
-#ifdef LOG_ENTRY
- printf ("libmpeg2: decode_data: exit\n");
-#endif
-
-}
-
-static void mpeg2_video_flush (video_decoder_t *this_gen) {
- mpeg2_video_decoder_t *this = (mpeg2_video_decoder_t *) this_gen;
-
-#ifdef LOG_ENTRY
- printf ("libmpeg2: flush\n");
-#endif
-
-/* mpeg2_flush (&this->mpeg2); */
-}
-
-static void mpeg2_video_reset (video_decoder_t *this_gen) {
- mpeg2_video_decoder_t *this = (mpeg2_video_decoder_t *) this_gen;
- int32_t state;
- const mpeg2_info_t * info;
- vo_frame_t * img;
- int32_t frame_skipping;
-
-#ifdef LOG_ENTRY
- printf ("libmpeg2: reset\n");
-#endif
- mpeg2_reset (this->mpeg2dec, 1); /* 1 for full reset */
- mpeg2_video_free_all(this->img_state);
-
-
-#if 0 /* This bit of code does not work yet. */
- info = mpeg2_info (this->mpeg2dec);
- state = mpeg2_reset (this->mpeg2dec);
- printf("reset state1:%d\n",state);
- if (info->display_fbuf && info->display_fbuf->id) {
- img = (vo_frame_t *) info->display_fbuf->id;
-
- if (this->img_state[img->id] != 1) {
- printf ("libmpeg2:decode_data:draw_frame id=%d BAD STATE:%d\n", img->id, this->img_state[img->id]);
- _x_abort();
- }
- if (this->img_state[img->id] == 1) {
- frame_skipping = img->draw (img, this->stream);
- /* FIXME: Handle skipping */
- this->img_state[img->id] = 2;
- }
- }
-
- if (info->discard_fbuf && !info->discard_fbuf->id) {
- printf ("libmpeg2:decode_data:BAD free_frame discard_fbuf=%p\n", info->discard_fbuf);
- _x_abort();
- }
- if (info->discard_fbuf && info->discard_fbuf->id) {
- img = (vo_frame_t *) info->discard_fbuf->id;
- if (this->img_state[img->id] != 2) {
- printf ("libmpeg2:decode_data:free_frame id=%d BAD STATE:%d\n", img->id, this->img_state[img->id]);
- _x_abort();
- }
- if (this->img_state[img->id] == 2) {
- img->free(img);
- this->img_state[img->id] = 0;
- }
- }
- state = mpeg2_parse (this->mpeg2dec);
- printf("reset state2:%d\n",state);
- if (info->display_fbuf && info->display_fbuf->id) {
- img = (vo_frame_t *) info->display_fbuf->id;
-
- if (this->img_state[img->id] != 1) {
- printf ("libmpeg2:decode_data:draw_frame id=%d BAD STATE:%d\n", img->id, this->img_state[img->id]);
- _x_abort();
- }
- if (this->img_state[img->id] == 1) {
- frame_skipping = img->draw (img, this->stream);
- /* FIXME: Handle skipping */
- this->img_state[img->id] = 2;
- }
- }
-
- if (info->discard_fbuf && !info->discard_fbuf->id) {
- printf ("libmpeg2:decode_data:BAD free_frame discard_fbuf=%p\n", info->discard_fbuf);
- _x_abort();
- }
- if (info->discard_fbuf && info->discard_fbuf->id) {
- img = (vo_frame_t *) info->discard_fbuf->id;
- if (this->img_state[img->id] != 2) {
- printf ("libmpeg2:decode_data:free_frame id=%d BAD STATE:%d\n", img->id, this->img_state[img->id]);
- _x_abort();
- }
- if (this->img_state[img->id] == 2) {
- img->free(img);
- this->img_state[img->id] = 0;
- }
- }
- state = mpeg2_parse (this->mpeg2dec);
- printf("reset state3:%d\n",state);
- if (info->display_fbuf && info->display_fbuf->id) {
- img = (vo_frame_t *) info->display_fbuf->id;
-
- if (this->img_state[img->id] != 1) {
- printf ("libmpeg2:decode_data:draw_frame id=%d BAD STATE:%d\n", img->id, this->img_state[img->id]);
- _x_abort();
- }
- if (this->img_state[img->id] == 1) {
- frame_skipping = img->draw (img, this->stream);
- /* FIXME: Handle skipping */
- this->img_state[img->id] = 2;
- }
- }
-
- if (info->discard_fbuf && !info->discard_fbuf->id) {
- printf ("libmpeg2:decode_data:BAD free_frame discard_fbuf=%p\n", info->discard_fbuf);
- _x_abort();
- }
- if (info->discard_fbuf && info->discard_fbuf->id) {
- img = (vo_frame_t *) info->discard_fbuf->id;
- if (this->img_state[img->id] != 2) {
- printf ("libmpeg2:decode_data:free_frame id=%d BAD STATE:%d\n", img->id, this->img_state[img->id]);
- _x_abort();
- }
- if (this->img_state[img->id] == 2) {
- img->free(img);
- this->img_state[img->id] = 0;
- }
- }
-#endif
-
-}
-
-static void mpeg2_video_discontinuity (video_decoder_t *this_gen) {
- mpeg2_video_decoder_t *this = (mpeg2_video_decoder_t *) this_gen;
-
-#ifdef LOG_ENTRY
- printf ("libmpeg2: dicontinuity\n");
-#endif
-/* mpeg2_discontinuity (&this->mpeg2dec); */
-}
-
-static void mpeg2_video_dispose (video_decoder_t *this_gen) {
-
- mpeg2_video_decoder_t *this = (mpeg2_video_decoder_t *) this_gen;
-
-#ifdef LOG_ENTRY
- printf ("libmpeg2: close\n");
-#endif
-
- mpeg2_close (this->mpeg2dec);
-
- this->stream->video_out->close(this->stream->video_out, this->stream);
-
- free (this);
-}
-
-static video_decoder_t *open_plugin (video_decoder_class_t *class_gen, xine_stream_t *stream) {
- mpeg2_video_decoder_t *this ;
- int32_t n;
-
- this = (mpeg2_video_decoder_t *) calloc(1, sizeof(mpeg2_video_decoder_t));
-
- this->video_decoder.decode_data = mpeg2_video_decode_data;
- this->video_decoder.flush = mpeg2_video_flush;
- this->video_decoder.reset = mpeg2_video_reset;
- this->video_decoder.discontinuity = mpeg2_video_discontinuity;
- this->video_decoder.dispose = mpeg2_video_dispose;
- this->stream = stream;
- this->class = (mpeg2_class_t *) class_gen;
- this->frame_number=0;
- this->rff_pattern=0;
-
- this->mpeg2dec = mpeg2_init ();
- mpeg2_custom_fbuf (this->mpeg2dec, 1); /* <- Force libmpeg2 to use xine frame buffers. */
- (stream->video_out->open) (stream->video_out, stream);
- this->force_aspect = this->force_pan_scan = 0;
- for(n=0;n<30;n++) this->img_state[n].id=0;
-
- return &this->video_decoder;
-}
-
-/*
- * mpeg2 plugin class
- */
-
-static char *get_identifier (video_decoder_class_t *this) {
- return "mpeg2new";
-}
-
-static char *get_description (video_decoder_class_t *this) {
- return "mpeg2 based video decoder plugin";
-}
-
-static void dispose_class (video_decoder_class_t *this) {
- free (this);
-}
-
-static void *init_plugin (xine_t *xine, void *data) {
-
- mpeg2_class_t *this;
-
- this = (mpeg2_class_t *) calloc(1, sizeof(mpeg2_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 supported_types[] = { BUF_VIDEO_MPEG, 0 };
-
-static const decoder_info_t dec_info_mpeg2 = {
- 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, 18, "mpeg2new", XINE_VERSION_CODE, &dec_info_mpeg2, init_plugin },
- { PLUGIN_NONE, 0, "", 0, NULL, NULL }
-};
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-25 14:08:33 +0000