+++ /dev/null
-
-/*
- * CINELERRA
- * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
- *
- * This program 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.
- *
- * This program 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
- *
- */
-
-#include "asset.h"
-#include "assets.h"
-#include "byteorder.h"
-#include "bccmodels.h"
-#include "format.inc"
-#include "file.h"
-#include "filebase.h"
-#include "overlayframe.h"
-#include "sizes.h"
-
-#include <stdlib.h>
-#include <string.h>
-
-FileBase::FileBase(Asset *asset, File *file)
-{
- this->file = file;
- this->asset = asset;
- internal_byte_order = get_byte_order();
- reset_parameters();
- overlayer = new OverlayFrame;
-}
-
-FileBase::~FileBase()
-{
- close_file();
- if(row_pointers_in) delete [] row_pointers_in;
- if(row_pointers_out) delete [] row_pointers_out;
- if(float_buffer) delete [] float_buffer;
- delete overlayer;
-}
-
-int FileBase::close_file()
-{
- if(row_pointers_in) delete [] row_pointers_in;
- if(row_pointers_out) delete [] row_pointers_out;
- if(float_buffer) delete [] float_buffer;
-
-
- if(pcm_history)
- {
- for(int i = 0; i < history_channels; i++)
- delete [] pcm_history[i];
- delete [] pcm_history;
- }
-
-
- close_file_derived();
- reset_parameters();
- return 0;
-}
-
-void FileBase::update_pcm_history(int64_t len)
-{
- decode_start = 0;
- decode_len = 0;
-
- if(!pcm_history)
- {
- history_channels = asset->channels;
- pcm_history = new double*[history_channels];
- for(int i = 0; i < history_channels; i++)
- pcm_history[i] = new double[HISTORY_MAX];
- history_start = 0;
- history_size = 0;
- history_allocated = HISTORY_MAX;
- }
-
-
-//printf("FileBase::update_pcm_history current_sample=" _LD " history_start=" _LD " history_size=" _LD "\n",
-//file->current_sample,
-//history_start,
-//history_size);
-// Restart history. Don't bother shifting history back.
- if(file->current_sample < history_start ||
- file->current_sample > history_start + history_size)
- {
- history_size = 0;
- history_start = file->current_sample;
- decode_start = file->current_sample;
- decode_len = len;
- }
- else
-// Shift history forward to make room for new samples
- if(file->current_sample > history_start + HISTORY_MAX)
- {
- int diff = file->current_sample - (history_start + HISTORY_MAX);
- for(int i = 0; i < asset->channels; i++)
- {
- double *temp = pcm_history[i];
- memcpy(temp, temp + diff, (history_size - diff) * sizeof(double));
- }
-
- history_start += diff;
- history_size -= diff;
-
-// Decode more data
- decode_start = history_start + history_size;
- decode_len = file->current_sample + len - (history_start + history_size);
- }
- else
-// Starting somewhere in the buffer
- {
- decode_start = history_start + history_size;
- decode_len = file->current_sample + len - (history_start + history_size);
- }
-}
-
-void FileBase::append_history(float **new_data, int len)
-{
- allocate_history(len);
-
- for(int i = 0; i < history_channels; i++)
- {
- double *output = pcm_history[i] + history_size;
- float *input = new_data[i];
- for(int j = 0; j < len; j++)
- *output++ = *input++;
- }
-
- history_size += len;
- decode_end += len;
-}
-
-void FileBase::append_history(short *new_data, int len)
-{
- allocate_history(len);
-
- for(int i = 0; i < history_channels; i++)
- {
- double *output = pcm_history[i] + history_size;
- short *input = new_data + i;
- for(int j = 0; j < len; j++)
- {
- *output++ = (double)*input / 32768;
- input += history_channels;
- }
- }
-
- history_size += len;
- decode_end += len;
-}
-
-void FileBase::read_history(double *dst,
- int64_t start_sample,
- int channel,
- int64_t len)
-{
- if(start_sample - history_start + len > history_size)
- len = history_size - (start_sample - history_start);
-//printf("FileBase::read_history start_sample=" _LD " history_start=" _LD " history_size=" _LD " len=" _LD "\n",
-//start_sample, history_start, history_size, len);
- double *input = pcm_history[channel] + start_sample - history_start;
- for(int i = 0; i < len; i++)
- {
- *dst++ = *input++;
- }
-}
-
-void FileBase::allocate_history(int len)
-{
- if(history_size + len > history_allocated)
- {
- double **temp = new double*[history_channels];
-
- for(int i = 0; i < history_channels; i++)
- {
- temp[i] = new double[history_size + len];
- memcpy(temp[i], pcm_history[i], history_size * sizeof(double));
- delete [] pcm_history[i];
- }
-
- delete [] pcm_history;
- pcm_history = temp;
- history_allocated = history_size + len;
- }
-}
-
-int64_t FileBase::get_history_sample()
-{
- return history_start + history_size;
-}
-
-int FileBase::set_dither()
-{
- dither = 1;
- return 0;
-}
-
-int FileBase::reset_parameters()
-{
- dither = 0;
- float_buffer = 0;
- row_pointers_in = 0;
- row_pointers_out = 0;
- prev_buffer_position = -1;
- prev_frame_position = -1;
- prev_len = 0;
- prev_bytes = 0;
- prev_track = -1;
- prev_layer = -1;
- ulawtofloat_table = 0;
- floattoulaw_table = 0;
- rd = wr = 0;
- pcm_history = 0;
- history_start = 0;
- history_size = 0;
- history_allocated = 0;
- history_channels = 0;
- decode_end = 0;
-
- delete_ulaw_tables();
- reset_parameters_derived();
- return 0;
-}
-
-int FileBase::get_mode(char *mode, int rd, int wr)
-{
- if(rd && !wr) sprintf(mode, "rb");
- else if(!rd && wr) sprintf(mode, "wb");
- else if(rd && wr) {
- int exists = 0;
- FILE *stream = fopen(asset->path, "rb");
- if( stream ) {
- exists = 1;
- fclose(stream);
- }
- sprintf(mode, exists ? "rb+" : "wb+");
- }
- return 0;
-}
-
-
-// ======================================= audio codecs
-
-int FileBase::get_video_buffer(unsigned char **buffer, int depth)
-{
-// get a raw video buffer for writing or compression by a library
- if(!*buffer)
- {
-// Video compression is entirely done in the library.
- int64_t bytes = asset->width * asset->height * depth;
- *buffer = new unsigned char[bytes];
- }
- return 0;
-}
-
-int FileBase::get_row_pointers(unsigned char *buffer, unsigned char ***pointers, int depth)
-{
-// This might be fooled if a new VFrame is created at the same address with a different height.
- if(*pointers && (*pointers)[0] != &buffer[0])
- {
- delete [] *pointers;
- *pointers = 0;
- }
-
- if(!*pointers)
- {
- *pointers = new unsigned char*[asset->height];
- for(int i = 0; i < asset->height; i++)
- {
- (*pointers)[i] = &buffer[i * asset->width * depth / 8];
- }
- }
- return 0;
-}
-
-int FileBase::match4(const char *in, const char *out)
-{
- return in[0] == out[0] && in[1] == out[1] &&
- in[2] == out[2] && in[3] == out[3] ? 1 : 0;
-}
-
-int FileBase::search_render_strategies(ArrayList<int>* render_strategies, int render_strategy)
-{
- for(int i = 0; i < render_strategies->total; i++)
- if(render_strategies->values[i] == render_strategy) return 1;
- return 0;
-}
-
-
-int64_t FileBase::base_memory_usage()
-{
-//printf("FileBase::base_memory_usage %d\n", __LINE__);
- return !pcm_history ? 0 :
- history_allocated * history_channels * sizeof(double);
-}
-
-
projects / goodguy / history.git / blobdiff