--- /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;
+
+
+
+
+ void get_mode(char *mode, int rd, int wr);
+ void 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