+++ /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
- *
- */
-
-#ifndef FILEBASE_H
-#define FILEBASE_H
-
-#include "asset.inc"
-#include "assets.inc"
-#include "bccmodels.h"
-#include "edit.inc"
-#include "ffmpeg.inc"
-#include "guicast.h"
-#include "file.inc"
-#include "filelist.inc"
-#include "overlayframe.inc"
-#include "strategies.inc"
-#include "vframe.inc"
-
-#include <sys/types.h>
-
-// Number of samples saved before the current read position
-#define HISTORY_MAX 0x10000
-
-// inherited by every file interpreter
-class FileBase
-{
-public:
- FileBase(Asset *asset, File *file);
- virtual ~FileBase();
-
-
- friend class File;
- friend class FFMPEG;
- friend class FileList;
- friend class FrameWriter;
-
-
-
-
- int get_mode(char *mode, int rd, int wr);
- int reset_parameters();
-
-
-
- virtual void get_parameters(BC_WindowBase *parent_window,
- Asset *asset,
- BC_WindowBase **format_window,
- int audio_options,
- int video_options,
- int lock_compressor) {};
-
-
-
- virtual int get_index(char *index_path) { return 1; }
- virtual int check_header() { return 0; } // Test file to see if it is of this type.
- virtual int reset_parameters_derived() { return 0; }
- virtual int read_header() { return 1; } // WAV files for getting header
- virtual int open_file(int rd, int wr) { return 1; }
- virtual int close_file();
- virtual int close_file_derived() { return 0; }
- int set_dither();
- virtual int seek_end() { return 0; }
- virtual int seek_start() { return 0; }
- virtual int64_t get_video_position() { return 0; }
- virtual int64_t get_audio_position() { return 0; }
- virtual int set_video_position(int64_t x) { return 0; }
- virtual int set_audio_position(int64_t x) { return 0; }
- virtual int set_subtitle(int value) { return -1; }
- virtual int select_video_stream(Asset *asset, int vstream) { return -1; }
- virtual int select_audio_stream(Asset *asset, int astream) { return -1; }
- virtual int set_program(int no) { return -1; }
- virtual int get_cell_time(int no, double &time) { time = -1.; return 1; }
- virtual int get_system_time(int64_t &tm) { tm = -1; return 1; }
- virtual int get_audio_for_video(int vstream, int astream, int64_t &channel_mask) {
- channel_mask = 0; return -1;
- }
- virtual int get_video_pid(int track) { return -1; }
- virtual int get_video_info(int track, int &pid, double &framerate,
- int &width, int &height, char *title=0) { return -1; }
-
- virtual int get_thumbnail(int stream, int64_t &position,
- unsigned char *&thumbnail, int &ww, int &hh) { return -1; }
- virtual int set_skimming(int track, int skim, skim_fn fn, void *vp) { return -1; }
- virtual int skim_video(int track, void *vp, skim_fn fn) { return -1; }
-
-// Subclass should call this to add the base class allocation.
-// Only used in read mode.
- virtual int64_t base_memory_usage();
-
- virtual int write_samples(double **buffer,
- int64_t len) { return 0; }
- virtual int write_frames(VFrame ***frames, int len) { return 0; }
- virtual int read_compressed_frame(VFrame *buffer) { return 0; }
- virtual int write_compressed_frame(VFrame *buffers) { return 0; }
- virtual int64_t compressed_frame_size() { return 0; }
-// Doubles are used to allow resampling
- virtual int read_samples(double *buffer, int64_t len) { return 0; }
- virtual int read_frame(VFrame *frame) { return 1; }
-// get dvb record stream file descriptor
- virtual int record_fd() { return -1; }
-
- virtual int prefer_samples_float() {return 0;};
- virtual int read_samples_float(float *buffer, int64_t len) { return 0; };
-
-
-// Return either the argument or another colormodel which read_frame should
-// use.
- virtual int colormodel_supported(int colormodel) { return BC_RGB888; }
-// This file can copy compressed frames directly from the asset
- virtual int can_copy_from(Asset *asset, int64_t position) { return 0; }
- virtual int get_render_strategy(ArrayList<int>* render_strategies) { return VRENDER_VPIXEL; }
-
-// Manages an audio history buffer
- void update_pcm_history(int64_t len);
-// Returns history_start + history_size
- int64_t get_history_sample();
-// contiguous float
- void append_history(float **new_data, int len);
-// Interleaved short
- void append_history(short *new_data, int len);
- void read_history(double *dst,
- int64_t start_sample,
- int channel,
- int64_t len);
- void allocate_history(int len);
-
-// For static functions to access it
- Asset *asset;
- int rd, wr;
-
-protected:
-// Return 1 if the render_strategy is present on the list.
- static int search_render_strategies(ArrayList<int>* render_strategies, int render_strategy);
-
-// convert samples into file format
- int64_t samples_to_raw(char *out_buffer,
- float **in_buffer, // was **buffer
- int64_t input_len,
- int bits,
- int channels,
- int byte_order,
- int signed_);
-
-// overwrites the buffer from PCM data depending on feather.
- int raw_to_samples(float *out_buffer, char *in_buffer,
- int64_t samples, int bits, int channels, int channel, int feather,
- float lfeather_len, float lfeather_gain, float lfeather_slope);
-
-// Overwrite the buffer from float data using feather.
- int overlay_float_buffer(float *out_buffer, float *in_buffer,
- int64_t samples,
- float lfeather_len, float lfeather_gain, float lfeather_slope);
-
-// convert a frame to and from file format
-
- int64_t frame_to_raw(unsigned char *out_buffer,
- VFrame *in_frame,
- int w,
- int h,
- int use_alpha,
- int use_float,
- int color_model);
-
-// allocate a buffer for translating int to float
- int get_audio_buffer(char **buffer, int64_t len, int64_t bits, int64_t channels); // audio
-
-// Allocate a buffer for feathering floats
- int get_float_buffer(float **buffer, int64_t len);
-
-// allocate a buffer for translating video to VFrame
- int get_video_buffer(unsigned char **buffer, int depth); // video
- int get_row_pointers(unsigned char *buffer, unsigned char ***pointers, int depth);
- static int match4(const char *in, const char *out); // match 4 bytes for a fourcc type
-
- float *float_buffer; // for floating point feathering
- unsigned char **row_pointers_in, **row_pointers_out;
- int64_t prev_buffer_position; // for audio determines if reading raw data is necessary
- int64_t prev_frame_position; // for video determines if reading raw video data is necessary
- int64_t prev_bytes; // determines if new raw buffer is needed and used for getting memory usage
- int64_t prev_len;
- int prev_track;
- int prev_layer;
- int dither;
- int internal_byte_order;
- File *file;
-
-// ================================= Audio compression
- double **pcm_history;
- int64_t history_allocated;
- int64_t history_size;
- int64_t history_start;
- int history_channels;
-// Range to decode to fill history buffer. Maintained by FileBase.
- int64_t decode_start;
- int64_t decode_len;
-// End of last decoded sample. Maintained by user for seeking.
- int64_t decode_end;
-
-
-private:
-
-
-
-
-// ULAW
- float ulawtofloat(char ulaw);
- char floattoulaw(float value);
- int generate_ulaw_tables();
- int delete_ulaw_tables();
- float *ulawtofloat_table, *ulawtofloat_ptr;
- unsigned char *floattoulaw_table, *floattoulaw_ptr;
-
- OverlayFrame *overlayer;
-};
-
-#endif
projects / goodguy / history.git / blobdiff