void flush_cc_decode(struct lib_cc_decode *ctx, struct cc_subtitle *sub)
{
	if(ctx->codec == CCX_CODEC_ATSC_CC)
	{
		if (ctx->extract != 2)
		{
			if (ctx->write_format==CCX_OF_SMPTETT || ctx->write_format==CCX_OF_SAMI ||
					ctx->write_format==CCX_OF_SRT || ctx->write_format==CCX_OF_TRANSCRIPT ||
					ctx->write_format == CCX_OF_WEBVTT || ctx->write_format == CCX_OF_SPUPNG ||
					ctx->write_format == CCX_OF_SSA)
			{
				flush_608_context(ctx->context_cc608_field_1, sub);
			}
			else if(ctx->write_format == CCX_OF_RCWT)
			{
				// Write last header and data
				writercwtdata (ctx, NULL, sub);
			}
		}
		if (ctx->extract != 1)
		{
			if (ctx->write_format == CCX_OF_SMPTETT || ctx->write_format == CCX_OF_SAMI ||
					ctx->write_format == CCX_OF_SRT || ctx->write_format == CCX_OF_TRANSCRIPT ||
					ctx->write_format == CCX_OF_WEBVTT || ctx->write_format == CCX_OF_SPUPNG ||
					ctx->write_format == CCX_OF_SSA)
			{
				flush_608_context(ctx->context_cc608_field_2, sub);
			}
		}
	}
	if (ctx->dtvcc->is_active)
	{
		for (int i = 0; i < CCX_DTVCC_MAX_SERVICES; i++)
		{
			ccx_dtvcc_service_decoder *decoder = &ctx->dtvcc->decoders[i];
			if (!ctx->dtvcc->services_active[i])
				continue;
			if (decoder->cc_count > 0)
			{
				ctx->current_field = 3;
				ccx_dtvcc_decoder_flush(ctx->dtvcc, decoder);
			}
		}
	}
}
int do_cb (struct lib_cc_decode *ctx, unsigned char *cc_block, struct cc_subtitle *sub)
{
	unsigned char cc_valid = (*cc_block & 4) >>2;
	unsigned char cc_type = *cc_block & 3;

	int timeok = 1;

	if ( ctx->fix_padding
		&& cc_valid==0 && cc_type <= 1 // Only fix NTSC packets
		&& cc_block[1]==0 && cc_block[2]==0 )
	{
		/* Padding */
		cc_valid=1;
		cc_block[1]=0x80;
		cc_block[2]=0x80;
	}

	if ( ctx->write_format!=CCX_OF_RAW && // In raw we cannot skip padding because timing depends on it
		 ctx->write_format!=CCX_OF_DVDRAW &&
		(cc_block[0]==0xFA || cc_block[0]==0xFC || cc_block[0]==0xFD )
		&& (cc_block[1]&0x7F)==0 && (cc_block[2]&0x7F)==0) // CFS: Skip non-data, makes debugging harder.
		return 1;

	// Print raw data with FTS.
	dbg_print(CCX_DMT_CBRAW, "%s   %d   %02X:%c%c:%02X", print_mstime(ctx->timing->fts_now + ctx->timing->fts_global),in_xds_mode,
			cc_block[0], cc_block[1]&0x7f,cc_block[2]&0x7f, cc_block[2]);

	/* In theory the writercwtdata() function could return early and not
	 * go through the 608/708 cases below.  We do that to get accurate
	 * counts for cb_field1, cb_field2 and cb_708.
	 * Note that printdata() and dtvcc_process_data() must not be called for
	 * the CCX_OF_RCWT case. */

	if (cc_valid || cc_type==3)
	{
		ctx->cc_stats[cc_type]++;

		switch (cc_type)
		{
			case 0:
				dbg_print(CCX_DMT_CBRAW, "    %s   ..   ..\n",  debug_608toASC( cc_block, 0));

				ctx->current_field = 1;
				ctx->saw_caption_block = 1;

				if (ctx->extraction_start.set &&
						get_fts(ctx->timing, ctx->current_field) < ctx->extraction_start.time_in_ms)
					timeok = 0;
				if (ctx->extraction_end.set &&
						get_fts(ctx->timing, ctx->current_field) > ctx->extraction_end.time_in_ms)
				{
					timeok = 0;
					ctx->processed_enough=1;
				}
				if (timeok)
				{
					if(ctx->write_format!=CCX_OF_RCWT)
						printdata (ctx, cc_block+1,2,0,0, sub);
					else
						writercwtdata(ctx, cc_block, sub);
				}
				cb_field1++;
				break;
			case 1:
				dbg_print(CCX_DMT_CBRAW, "    ..   %s   ..\n",  debug_608toASC( cc_block, 1));

				ctx->current_field = 2;
				ctx->saw_caption_block = 1;

				if (ctx->extraction_start.set &&
						get_fts(ctx->timing, ctx->current_field) < ctx->extraction_start.time_in_ms)
					timeok = 0;
				if (ctx->extraction_end.set &&
						get_fts(ctx->timing, ctx->current_field) > ctx->extraction_end.time_in_ms)
				{
					timeok = 0;
					ctx->processed_enough=1;
				}
				if (timeok)
				{
					if(ctx->write_format!=CCX_OF_RCWT)
						printdata (ctx, 0,0,cc_block+1,2, sub);
					else
						writercwtdata(ctx, cc_block, sub);
				}
				cb_field2++;
				break;
			case 2: //EIA-708
				// DTVCC packet data
				// Fall through
			case 3: //EIA-708
				dbg_print(CCX_DMT_CBRAW, "    ..   ..   DD\n");

				// DTVCC packet start
				ctx->current_field = 3;

				if (ctx->extraction_start.set &&
						get_fts(ctx->timing, ctx->current_field) < ctx->extraction_start.time_in_ms)
					timeok = 0;
				if (ctx->extraction_end.set &&
						get_fts(ctx->timing, ctx->current_field) > ctx->extraction_end.time_in_ms)
				{
					timeok = 0;
					ctx->processed_enough=1;
				}
				char temp[4];
				temp[0]=cc_valid;
				temp[1]=cc_type;
				temp[2]=cc_block[1];
				temp[3]=cc_block[2];
				if (timeok)
				{
					if (ctx->write_format != CCX_OF_RCWT)
						ccx_dtvcc_process_data(ctx, (const unsigned char *) temp, 4);
					else
						writercwtdata(ctx, cc_block, sub);
				}
				cb_708++;
				// Check for bytes read
				// printf ("Warning: Losing EIA-708 data!\n");
				break;
			default:
				fatal(CCX_COMMON_EXIT_BUG_BUG, "Cannot be reached!");
		} // switch (cc_type)
	} // cc_valid
	else
	{
		dbg_print(CCX_DMT_CBRAW, "    ..   ..   ..\n");
		dbg_print(CCX_DMT_VERBOSE, "Found !(cc_valid || cc_type==3) - ignore this block\n");
	}

	return 1;
}
int main(int argc, char *argv[])
{
	char *c;
	struct encoder_ctx enc_ctx[2];
	struct cc_subtitle dec_sub;
#ifdef ENABLE_FFMPEG
	void *ffmpeg_ctx = NULL;
#endif
	struct lib_ccx_ctx *ctx;
	struct lib_cc_decode *dec_ctx = NULL;


	init_options (&ccx_options);

	parse_configuration(&ccx_options);
	parse_parameters (&ccx_options, argc, argv);

	// Initialize libraries
	ctx = init_libraries(&ccx_options);
	dec_ctx = ctx->dec_ctx;


	// Prepare write structures
	init_write(&ctx->wbout1,ccx_options.wbout1.filename);
	init_write(&ctx->wbout2,ccx_options.wbout2.filename);
	

	int show_myth_banner = 0;
	
	memset (&cea708services[0],0,CCX_DECODERS_708_MAX_SERVICES*sizeof (int)); // Cannot (yet) be moved because it's needed in parse_parameters.
	memset (&dec_sub, 0,sizeof(dec_sub));


	if (ctx->num_input_files==0 && ccx_options.input_source==CCX_DS_FILE)
	{
		usage ();
		fatal (EXIT_NO_INPUT_FILES, "(This help screen was shown because there were no input files)\n");
	}
	if (ctx->num_input_files>1 && ccx_options.live_stream)
	{
		fatal(EXIT_TOO_MANY_INPUT_FILES, "Live stream mode accepts only one input file.\n");
	}
	if (ctx->num_input_files && ccx_options.input_source==CCX_DS_NETWORK)
	{
		fatal(EXIT_TOO_MANY_INPUT_FILES, "UDP mode is not compatible with input files.\n");
	}
	if (ccx_options.input_source==CCX_DS_NETWORK || ccx_options.input_source==CCX_DS_TCP)
	{
		ccx_options.buffer_input=1; // Mandatory, because each datagram must be read complete.
	}
	if (ctx->num_input_files && ccx_options.input_source==CCX_DS_TCP)
	{
		fatal(EXIT_TOO_MANY_INPUT_FILES, "TCP mode is not compatible with input files.\n");
	}

	if (ctx->num_input_files > 0)
	{
		ctx->wbout1.multiple_files = 1;
		ctx->wbout1.first_input_file = ctx->inputfile[0];
		ctx->wbout2.multiple_files = 1;
		ctx->wbout2.first_input_file = ctx->inputfile[0];
	}

	// teletext page number out of range
	if ((tlt_config.page != 0) && ((tlt_config.page < 100) || (tlt_config.page > 899))) {
		fatal (EXIT_NOT_CLASSIFIED, "Teletext page number could not be lower than 100 or higher than 899\n");
	}

	if (ccx_options.output_filename!=NULL)
	{
		// Use the given output file name for the field specified by
		// the -1, -2 switch. If -12 is used, the filename is used for
		// field 1.
		if (ccx_options.extract==2)
			ctx->wbout2.filename=ccx_options.output_filename;
		else
			ctx->wbout1.filename=ccx_options.output_filename;
	}

	switch (ccx_options.write_format)
	{
		case CCX_OF_RAW:
			ctx->extension = ".raw";
			break;
		case CCX_OF_SRT:
			ctx->extension = ".srt";
			break;
		case CCX_OF_SAMI:
			ctx->extension = ".smi";
			break;
		case CCX_OF_SMPTETT:
			ctx->extension = ".ttml";
			break;
		case CCX_OF_TRANSCRIPT:
			ctx->extension = ".txt";
			break;
		case CCX_OF_RCWT:
			ctx->extension = ".bin";
			break;
		case CCX_OF_SPUPNG:
			ctx->extension = ".xml";
			break;
		case CCX_OF_NULL:
			ctx->extension = "";
			break;
		case CCX_OF_DVDRAW:
			ctx->extension = ".dvdraw";
			break;
		default:
			fatal (CCX_COMMON_EXIT_BUG_BUG, "write_format doesn't have any legal value, this is a bug.\n");			
	}
	params_dump(ctx);

	// default teletext page
	if (tlt_config.page > 0) {
		// dec to BCD, magazine pages numbers are in BCD (ETSI 300 706)
		tlt_config.page = ((tlt_config.page / 100) << 8) | (((tlt_config.page / 10) % 10) << 4) | (tlt_config.page % 10);
	}

	if (ctx->auto_stream==CCX_SM_MCPOODLESRAW && ccx_options.write_format==CCX_OF_RAW)
	{
		fatal (EXIT_INCOMPATIBLE_PARAMETERS, "-in=raw can only be used if the output is a subtitle file.\n");
	}
	if (ctx->auto_stream==CCX_SM_RCWT && ccx_options.write_format==CCX_OF_RCWT && ccx_options.output_filename==NULL)
	{
		fatal (EXIT_INCOMPATIBLE_PARAMETERS,
			   "CCExtractor's binary format can only be used simultaneously for input and\noutput if the output file name is specified given with -o.\n");
	}

	subline = (unsigned char *) malloc (SUBLINESIZE);

	switch (ccx_options.input_source)
	{
		case CCX_DS_FILE:
			ctx->basefilename = (char *) malloc (strlen (ctx->inputfile[0])+1);
			break;
		case CCX_DS_STDIN:
			ctx->basefilename = (char *) malloc (strlen (ctx->basefilename_for_stdin)+1);
			break;
		case CCX_DS_NETWORK:
		case CCX_DS_TCP:
			ctx->basefilename = (char *) malloc (strlen (ctx->basefilename_for_network)+1);
			break;
	}		
	if (ctx->basefilename == NULL)
		fatal (EXIT_NOT_ENOUGH_MEMORY, "Not enough memory\n");		
	switch (ccx_options.input_source)
	{
		case CCX_DS_FILE:
			strcpy (ctx->basefilename, ctx->inputfile[0]);
			break;
		case CCX_DS_STDIN:
			strcpy (ctx->basefilename, ctx->basefilename_for_stdin);
			break;
		case CCX_DS_NETWORK:
		case CCX_DS_TCP:
			strcpy (ctx->basefilename, ctx->basefilename_for_network);
			break;
	}		
	for (c=ctx->basefilename+strlen (ctx->basefilename)-1; ctx->basefilename &&
		*c!='.'; c--) {;} // Get last .
	if (*c=='.')
		*c=0;

	if (ctx->wbout1.filename==NULL)
	{
		ctx->wbout1.filename = (char *) malloc (strlen (ctx->basefilename)+3+strlen (ctx->extension));
		ctx->wbout1.filename[0]=0;
	}
	if (ctx->wbout2.filename==NULL)
	{
		ctx->wbout2.filename = (char *) malloc (strlen (ctx->basefilename)+3+strlen (ctx->extension));
		ctx->wbout2.filename[0]=0;
	}
	if (ctx->buffer == NULL || ctx->pesheaderbuf==NULL ||
		ctx->wbout1.filename == NULL || ctx->wbout2.filename == NULL ||
		subline==NULL || init_file_buffer() )
	{
		fatal (EXIT_NOT_ENOUGH_MEMORY, "Not enough memory\n");		
	}

	if (ccx_options.send_to_srv)
	{
		connect_to_srv(ccx_options.srv_addr, ccx_options.srv_port, ccx_options.tcp_desc);
	}

	if (ccx_options.write_format!=CCX_OF_NULL)
	{
		/* # DVD format uses one raw file for both fields, while Broadcast requires 2 */
		if (ccx_options.write_format==CCX_OF_DVDRAW)
		{
			if (ctx->wbout1.filename[0]==0)
			{
				strcpy (ctx->wbout1.filename,ctx->basefilename);
				strcat (ctx->wbout1.filename,".raw");
			}
			if (ctx->cc_to_stdout)
			{
				ctx->wbout1.fh=STDOUT_FILENO;
				mprint ("Sending captions to stdout.\n");
			}
			else
			{
				mprint ("Creating %s\n", ctx->wbout1.filename);
				ctx->wbout1.fh=open (ctx->wbout1.filename, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, S_IREAD | S_IWRITE);
				if (ctx->wbout1.fh==-1)
				{
					fatal(CCX_COMMON_EXIT_FILE_CREATION_FAILED, "Failed\n");
				}
			}
		}
		else
		{
			if (ctx->cc_to_stdout && ccx_options.extract==12)
				fatal (EXIT_INCOMPATIBLE_PARAMETERS, "You can't extract both fields to stdout at the same time in broadcast mode.");
			
			if (ccx_options.write_format == CCX_OF_SPUPNG && ctx->cc_to_stdout)
				fatal (EXIT_INCOMPATIBLE_PARAMETERS, "You cannot use -out=spupng with -stdout.");

			if (ccx_options.extract!=2)
			{
				if (ctx->cc_to_stdout)
				{
					ctx->wbout1.fh=STDOUT_FILENO;
					mprint ("Sending captions to stdout.\n");
				}
				else if (!ccx_options.send_to_srv)
				{
					if (ctx->wbout1.filename[0]==0)
					{
						strcpy (ctx->wbout1.filename,ctx->basefilename);
						if (ccx_options.extract==12) // _1 only added if there's two files
							strcat (ctx->wbout1.filename,"_1");
						strcat (ctx->wbout1.filename,(const char *) ctx->extension);
					}
					mprint ("Creating %s\n", ctx->wbout1.filename);
					ctx->wbout1.fh=open (ctx->wbout1.filename, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, S_IREAD | S_IWRITE);
					if (ctx->wbout1.fh==-1)
					{
						fatal(CCX_COMMON_EXIT_FILE_CREATION_FAILED, "Failed (errno=%d)\n", errno);
					}
				}
				switch (ccx_options.write_format)
				{
				case CCX_OF_RAW:
					writeraw(BROADCAST_HEADER, sizeof(BROADCAST_HEADER), &ctx->wbout1);
					break;
				case CCX_OF_DVDRAW:
					break;
				case CCX_OF_RCWT:
					if (init_encoder(enc_ctx, &ctx->wbout1))
						fatal(EXIT_NOT_ENOUGH_MEMORY, "Not enough memory\n");
					set_encoder_subs_delay(enc_ctx, ctx->subs_delay);
					set_encoder_last_displayed_subs_ms(enc_ctx, ctx->last_displayed_subs_ms);
					set_encoder_startcredits_displayed(enc_ctx, ctx->startcredits_displayed);
					break;
				default:
					if (!ccx_options.no_bom){
						if (ccx_options.encoding == CCX_ENC_UTF_8){ // Write BOM
							writeraw(UTF8_BOM, sizeof(UTF8_BOM), &ctx->wbout1);
						}
						if (ccx_options.encoding == CCX_ENC_UNICODE){ // Write BOM				
							writeraw(LITTLE_ENDIAN_BOM, sizeof(LITTLE_ENDIAN_BOM), &ctx->wbout1);
						}
					}
					if (init_encoder(enc_ctx, &ctx->wbout1)){
						fatal(EXIT_NOT_ENOUGH_MEMORY, "Not enough memory\n");
					}
					set_encoder_subs_delay(enc_ctx, ctx->subs_delay);
					set_encoder_last_displayed_subs_ms(enc_ctx, ctx->last_displayed_subs_ms);
					set_encoder_startcredits_displayed(enc_ctx, ctx->startcredits_displayed);
				}
			}
			if (ccx_options.extract == 12 && ccx_options.write_format != CCX_OF_RAW)
				mprint (" and \n");
			if (ccx_options.extract!=1)
			{
				if (ctx->cc_to_stdout)
				{
					ctx->wbout1.fh=STDOUT_FILENO;
					mprint ("Sending captions to stdout.\n");
				}
				else if(ccx_options.write_format == CCX_OF_RAW
					&& ccx_options.extract == 12)
				{
					memcpy(&ctx->wbout2, &ctx->wbout1,sizeof(ctx->wbout1));
				}
				else if (!ccx_options.send_to_srv)
				{
					if (ctx->wbout2.filename[0]==0)
					{
						strcpy (ctx->wbout2.filename,ctx->basefilename);
						if (ccx_options.extract==12) // _ only added if there's two files
							strcat (ctx->wbout2.filename,"_2");
						strcat (ctx->wbout2.filename,(const char *) ctx->extension);
					}
					mprint ("Creating %s\n", ctx->wbout2.filename);
					ctx->wbout2.fh=open (ctx->wbout2.filename, O_RDWR | O_CREAT | O_TRUNC | O_BINARY, S_IREAD | S_IWRITE);
					if (ctx->wbout2.fh==-1)
					{
						fatal(CCX_COMMON_EXIT_FILE_CREATION_FAILED, "Failed\n");
					}
					if(ccx_options.write_format == CCX_OF_RAW)
						writeraw (BROADCAST_HEADER,sizeof (BROADCAST_HEADER),&ctx->wbout2);
				}

				switch (ccx_options.write_format)
				{
					case CCX_OF_RAW:
					case CCX_OF_DVDRAW:
						break;
					case CCX_OF_RCWT:
						if( init_encoder(enc_ctx+1,&ctx->wbout2) )
							fatal (EXIT_NOT_ENOUGH_MEMORY, "Not enough memory\n");
						set_encoder_subs_delay(enc_ctx+1, ctx->subs_delay);
						set_encoder_last_displayed_subs_ms(enc_ctx+1, ctx->last_displayed_subs_ms);
						set_encoder_startcredits_displayed(enc_ctx+1, ctx->startcredits_displayed);
						break;
					default:
						if (!ccx_options.no_bom){
							if (ccx_options.encoding == CCX_ENC_UTF_8){ // Write BOM
								writeraw(UTF8_BOM, sizeof(UTF8_BOM), &ctx->wbout2);
							}
							if (ccx_options.encoding == CCX_ENC_UNICODE){ // Write BOM				
								writeraw(LITTLE_ENDIAN_BOM, sizeof(LITTLE_ENDIAN_BOM), &ctx->wbout2);
							}
						}
						if (init_encoder(enc_ctx + 1, &ctx->wbout2)){
							fatal(EXIT_NOT_ENOUGH_MEMORY, "Not enough memory\n");
						}
						set_encoder_subs_delay(enc_ctx+1, ctx->subs_delay);
						set_encoder_last_displayed_subs_ms(enc_ctx+1, ctx->last_displayed_subs_ms);
						set_encoder_startcredits_displayed(enc_ctx+1, ctx->startcredits_displayed);
				}
			}
		}
	}

	if (ccx_options.transcript_settings.xds)
	{
		if (ccx_options.write_format != CCX_OF_TRANSCRIPT)
		{
			ccx_options.transcript_settings.xds = 0;
			mprint ("Warning: -xds ignored, XDS can only be exported to transcripts at this time.\n");
		}
	}

	if (ccx_options.teletext_mode == CCX_TXT_IN_USE) // Here, it would mean it was forced by user
		telxcc_init(ctx);

	ctx->fh_out_elementarystream = NULL;
	if (ccx_options.out_elementarystream_filename!=NULL)
	{
		if ((ctx->fh_out_elementarystream = fopen (ccx_options.out_elementarystream_filename,"wb"))==NULL)
		{
			fatal(CCX_COMMON_EXIT_FILE_CREATION_FAILED, "Unable to open clean file: %s\n", ccx_options.out_elementarystream_filename);
		}
	}	


	// Initialize HDTV caption buffer
	init_hdcc();

	if (ccx_options.line_terminator_lf)
		encoded_crlf_length = encode_line(encoded_crlf, (unsigned char *) "\n");
	else
		encoded_crlf_length = encode_line(encoded_crlf, (unsigned char *) "\r\n");

	encoded_br_length = encode_line(encoded_br, (unsigned char *) "<br>");
	

	time_t start, final;
	time(&start);

	dec_ctx->processed_enough=0;
	if (ccx_options.binary_concat)
	{
		ctx->total_inputsize=gettotalfilessize(ctx);
		if (ctx->total_inputsize==-1)
			fatal (EXIT_UNABLE_TO_DETERMINE_FILE_SIZE, "Failed to determine total file size.\n");
	}

#ifndef _WIN32
	signal_ctx = ctx;
	m_signal(SIGINT, sigint_handler);
#endif

	while (switch_to_next_file(ctx, 0) && !dec_ctx->processed_enough)
	{
		prepare_for_new_file(ctx);
#ifdef ENABLE_FFMPEG
		close_input_file(ctx);
		ffmpeg_ctx =  init_ffmpeg(ctx->inputfile[0]);
		if(ffmpeg_ctx)
		{
			do
			{
				int ret = 0;
				unsigned char *bptr = ctx->buffer;
				int len = ff_get_ccframe(ffmpeg_ctx, bptr, 1024);
                                int cc_count = 0;
				if(len == AVERROR(EAGAIN))
				{
					continue;
				}
				else if(len == AVERROR_EOF)
					break;
				else if(len == 0)
					continue;
				else if(len < 0 )
				{
					mprint("Error extracting Frame\n");
					break;

				}
                                else
                                    cc_count = len/3;
				ret = process_cc_data(dec_ctx, bptr, cc_count, &dec_sub);
				if(ret >= 0 && dec_sub.got_output)
				{
					encode_sub(enc_ctx, &dec_sub);
					dec_sub.got_output = 0;
				}
			}while(1);
			continue;
		}
		else
		{
			mprint ("\rFailed to initialized ffmpeg falling back to legacy\n");
		}
#endif
		if (ctx->auto_stream == CCX_SM_AUTODETECT)
		{
			detect_stream_type(ctx);
			switch (ctx->stream_mode)
			{
				case CCX_SM_ELEMENTARY_OR_NOT_FOUND:
					mprint ("\rFile seems to be an elementary stream, enabling ES mode\n");
					break;
				case CCX_SM_TRANSPORT:
					mprint ("\rFile seems to be a transport stream, enabling TS mode\n");
					break;
				case CCX_SM_PROGRAM:
					mprint ("\rFile seems to be a program stream, enabling PS mode\n");
					break;
				case CCX_SM_ASF:
					mprint ("\rFile seems to be an ASF, enabling DVR-MS mode\n");
					break;
				case CCX_SM_WTV:
					mprint ("\rFile seems to be a WTV, enabling WTV mode\n");
					break;
				case CCX_SM_MCPOODLESRAW:
					mprint ("\rFile seems to be McPoodle raw data\n");
					break;
				case CCX_SM_RCWT:
					mprint ("\rFile seems to be a raw caption with time data\n");
					break;
				case CCX_SM_MP4:
					mprint ("\rFile seems to be a MP4\n");
					break;
#ifdef WTV_DEBUG
				case CCX_SM_HEX_DUMP:
					mprint ("\rFile seems to be an hexadecimal dump\n");					
					break;
#endif
				case CCX_SM_MYTH:
				case CCX_SM_AUTODETECT:
					fatal(CCX_COMMON_EXIT_BUG_BUG, "Cannot be reached!");
					break;
			}
		}
		else
		{
			ctx->stream_mode=ctx->auto_stream;
		}
	
		/* -----------------------------------------------------------------
		MAIN LOOP
		----------------------------------------------------------------- */

		// The myth loop autodetect will only be used with ES or PS streams
		switch (ccx_options.auto_myth)
		{
			case 0:
				// Use whatever stream mode says
				break;
			case 1:
				// Force stream mode to myth
				ctx->stream_mode=CCX_SM_MYTH;
				break;
			case 2:
				// autodetect myth files, but only if it does not conflict with
				// the current stream mode
				switch (ctx->stream_mode)
				{
					case CCX_SM_ELEMENTARY_OR_NOT_FOUND:
					case CCX_SM_PROGRAM:
						if ( detect_myth(ctx) )
						{
							ctx->stream_mode=CCX_SM_MYTH;
						}
						break;
					default:
						// Keep stream_mode
						break;
				}
				break;					
		}

		// Disable sync check for raw formats - they have the right timeline.
		// Also true for bin formats, but -nosync might have created a
		// broken timeline for debug purposes.
		// Disable too in MP4, specs doesn't say that there can't be a jump
		switch (ctx->stream_mode)
		{
		case CCX_SM_MCPOODLESRAW:
		case CCX_SM_RCWT:
		case CCX_SM_MP4:
#ifdef WTV_DEBUG
		case CCX_SM_HEX_DUMP:
#endif
			ccx_common_timing_settings.disable_sync_check = 1;
			break;
		default:
			break;
		}
				
		switch (ctx->stream_mode)
		{
			case CCX_SM_ELEMENTARY_OR_NOT_FOUND:
				if (!ccx_options.use_gop_as_pts) // If !0 then the user selected something
					ccx_options.use_gop_as_pts = 1; // Force GOP timing for ES
				ccx_common_timing_settings.is_elementary_stream = 1;
			case CCX_SM_TRANSPORT:
			case CCX_SM_PROGRAM:
			case CCX_SM_ASF:
			case CCX_SM_WTV:
				if (!ccx_options.use_gop_as_pts) // If !0 then the user selected something
					ccx_options.use_gop_as_pts = 0; 
				mprint ("\rAnalyzing data in general mode\n");
				general_loop(ctx, &enc_ctx);
				break;
			case CCX_SM_MCPOODLESRAW:
				mprint ("\rAnalyzing data in McPoodle raw mode\n");
				raw_loop(ctx, &enc_ctx);
				break;
			case CCX_SM_RCWT:
				mprint ("\rAnalyzing data in CCExtractor's binary format\n");
				rcwt_loop(ctx, &enc_ctx);
				break;
			case CCX_SM_MYTH:
				mprint ("\rAnalyzing data in MythTV mode\n");
				show_myth_banner = 1;
				myth_loop(ctx, &enc_ctx);
				break;
			case CCX_SM_MP4:				
				mprint ("\rAnalyzing data with GPAC (MP4 library)\n");
				close_input_file(ctx); // No need to have it open. GPAC will do it for us
				processmp4 (ctx, ctx->inputfile[0],&enc_ctx);
				break;
#ifdef WTV_DEBUG
			case CCX_SM_HEX_DUMP:
				close_input_file(ctx); // processhex will open it in text mode
				processhex (ctx, ctx->inputfile[0]);
				break;
#endif
			case CCX_SM_AUTODETECT:
				fatal(CCX_COMMON_EXIT_BUG_BUG, "Cannot be reached!");
				break;
		}

		mprint("\n");
		dbg_print(CCX_DMT_DECODER_608, "\nTime stamps after last caption block was written:\n");
		dbg_print(CCX_DMT_DECODER_608, "Last time stamps:  PTS: %s (%+2dF)		",
			   print_mstime( (LLONG) (sync_pts/(MPEG_CLOCK_FREQ/1000)
								   +frames_since_ref_time*1000.0/current_fps) ),
			   frames_since_ref_time);
		dbg_print(CCX_DMT_DECODER_608, "GOP: %s	  \n", print_mstime(gop_time.ms) );

		// Blocks since last PTS/GOP time stamp.
		dbg_print(CCX_DMT_DECODER_608, "Calc. difference:  PTS: %s (%+3lldms incl.)  ",
			print_mstime( (LLONG) ((sync_pts-min_pts)/(MPEG_CLOCK_FREQ/1000)
			+ fts_offset + frames_since_ref_time*1000.0/current_fps)),
			fts_offset + (LLONG) (frames_since_ref_time*1000.0/current_fps) );
		dbg_print(CCX_DMT_DECODER_608, "GOP: %s (%+3dms incl.)\n",
			print_mstime((LLONG)(gop_time.ms
			-first_gop_time.ms
			+get_fts_max()-fts_at_gop_start)),
			(int)(get_fts_max()-fts_at_gop_start));
		// When padding is active the CC block time should be within
		// 1000/29.97 us of the differences.
		dbg_print(CCX_DMT_DECODER_608, "Max. FTS:	   %s  (without caption blocks since then)\n",
			print_mstime(get_fts_max()));

		if (ctx->stat_hdtv)
		{
			mprint ("\rCC type 0: %d (%s)\n", dec_ctx->cc_stats[0], cc_types[0]);
			mprint ("CC type 1: %d (%s)\n", dec_ctx->cc_stats[1], cc_types[1]);
			mprint ("CC type 2: %d (%s)\n", dec_ctx->cc_stats[2], cc_types[2]);
			mprint ("CC type 3: %d (%s)\n", dec_ctx->cc_stats[3], cc_types[3]);
		}
		mprint ("\nTotal frames time:	  %s  (%u frames at %.2ffps)\n",
			print_mstime( (LLONG)(total_frames_count*1000/current_fps) ),
			total_frames_count, current_fps);
		if (ctx->total_pulldownframes)
			mprint ("incl. pulldown frames:  %s  (%u frames at %.2ffps)\n",
					print_mstime( (LLONG)(ctx->total_pulldownframes*1000/current_fps) ),
					ctx->total_pulldownframes, current_fps);
		if (pts_set >= 1 && min_pts != 0x01FFFFFFFFLL)
		{
			LLONG postsyncms = (LLONG) (ctx->frames_since_last_gop*1000/current_fps);
			mprint ("\nMin PTS:				%s\n",
					print_mstime( min_pts/(MPEG_CLOCK_FREQ/1000) - fts_offset));
			if (pts_big_change)
				mprint ("(Reference clock was reset at some point, Min PTS is approximated)\n");
			mprint ("Max PTS:				%s\n",
					print_mstime( sync_pts/(MPEG_CLOCK_FREQ/1000) + postsyncms));

			mprint ("Length:				 %s\n",
					print_mstime( sync_pts/(MPEG_CLOCK_FREQ/1000) + postsyncms
								  - min_pts/(MPEG_CLOCK_FREQ/1000) + fts_offset ));
		}
		// dvr-ms files have invalid GOPs
		if (gop_time.inited && first_gop_time.inited && ctx->stream_mode != CCX_SM_ASF)
		{
			mprint ("\nInitial GOP time:	   %s\n",
				print_mstime(first_gop_time.ms));
			mprint ("Final GOP time:		 %s%+3dF\n",
				print_mstime(gop_time.ms),
				ctx->frames_since_last_gop);
			mprint ("Diff. GOP length:	   %s%+3dF",
				print_mstime(gop_time.ms - first_gop_time.ms),
				ctx->frames_since_last_gop);
			mprint ("	(%s)\n",
				print_mstime(gop_time.ms - first_gop_time.ms
				+(LLONG) ((ctx->frames_since_last_gop)*1000/29.97)) );
		}

		if (ctx->false_pict_header)
			mprint ("\nNumber of likely false picture headers (discarded): %d\n",ctx->false_pict_header);

		if (ctx->stat_numuserheaders)
			mprint("\nTotal user data fields: %d\n", ctx->stat_numuserheaders);
		if (ctx->stat_dvdccheaders)
			mprint("DVD-type user data fields: %d\n", ctx->stat_dvdccheaders);
		if (ctx->stat_scte20ccheaders)
			mprint("SCTE-20 type user data fields: %d\n", ctx->stat_scte20ccheaders);
		if (ctx->stat_replay4000headers)
			mprint("ReplayTV 4000 user data fields: %d\n", ctx->stat_replay4000headers);
		if (ctx->stat_replay5000headers)
			mprint("ReplayTV 5000 user data fields: %d\n", ctx->stat_replay5000headers);
		if (ctx->stat_hdtv)
			mprint("HDTV type user data fields: %d\n", ctx->stat_hdtv);
		if (ctx->stat_dishheaders)
			mprint("Dish Network user data fields: %d\n", ctx->stat_dishheaders);
		if (ctx->stat_divicom)
		{
			mprint("CEA608/Divicom user data fields: %d\n", ctx->stat_divicom);

			mprint("\n\nNOTE! The CEA 608 / Divicom standard encoding for closed\n");
			mprint("caption is not well understood!\n\n");
			mprint("Please submit samples to the developers.\n\n\n");
		}

		// Add one frame as fts_max marks the beginning of the last frame,
		// but we need the end.
		fts_global += fts_max + (LLONG) (1000.0/current_fps);
		// CFS: At least in Hauppage mode, cb_field can be responsible for ALL the 
		// timing (cb_fields having a huge number and fts_now and fts_global being 0 all
		// the time), so we need to take that into account in fts_global before resetting
		// counters.
		if (cb_field1!=0)
			fts_global += cb_field1*1001/3;
		else
			fts_global += cb_field2*1001/3;
		// Reset counters - This is needed if some captions are still buffered
		// and need to be written after the last file is processed.		
		cb_field1 = 0; cb_field2 = 0; cb_708 = 0;
		fts_now = 0;
		fts_max = 0;
	} // file loop
	close_input_file(ctx);
	
	if (ctx->fh_out_elementarystream!=NULL)
		fclose (ctx->fh_out_elementarystream);

	flushbuffer (ctx, &ctx->wbout1, false);
	flushbuffer (ctx, &ctx->wbout2, false);

	prepare_for_new_file (ctx); // To reset counters used by handle_end_of_data()

	telxcc_close(ctx);
	if (ctx->wbout1.fh!=-1)
	{
		if (ccx_options.write_format==CCX_OF_SMPTETT || ccx_options.write_format==CCX_OF_SAMI || 
			ccx_options.write_format==CCX_OF_SRT || ccx_options.write_format==CCX_OF_TRANSCRIPT
			|| ccx_options.write_format==CCX_OF_SPUPNG )
		{
			handle_end_of_data(dec_ctx->context_cc608_field_1, &dec_sub);
			if (dec_sub.got_output)
			{
				encode_sub(enc_ctx,&dec_sub);
				dec_sub.got_output = 0;
			}
		}
		else if(ccx_options.write_format==CCX_OF_RCWT)
		{
			// Write last header and data
			writercwtdata (dec_ctx, NULL);
		}
		dinit_encoder(enc_ctx);
	}
	if (ctx->wbout2.fh!=-1)
	{
		if (ccx_options.write_format==CCX_OF_SMPTETT || ccx_options.write_format==CCX_OF_SAMI || 
			ccx_options.write_format==CCX_OF_SRT || ccx_options.write_format==CCX_OF_TRANSCRIPT
			|| ccx_options.write_format==CCX_OF_SPUPNG )
		{
			handle_end_of_data(dec_ctx->context_cc608_field_2, &dec_sub);
			if (dec_sub.got_output)
			{
				encode_sub(enc_ctx,&dec_sub);
				dec_sub.got_output = 0;
			}
		}
		dinit_encoder(enc_ctx+1);
	}
	flushbuffer (ctx, &ctx->wbout1,true);
	flushbuffer (ctx, &ctx->wbout2,true);
	time (&final);

	long proc_time=(long) (final-start);
	mprint ("\rDone, processing time = %ld seconds\n", proc_time);
	if (proc_time>0)
	{
		LLONG ratio=(get_fts_max()/10)/proc_time;
		unsigned s1=(unsigned) (ratio/100);
		unsigned s2=(unsigned) (ratio%100);	
		mprint ("Performance (real length/process time) = %u.%02u\n", 
			s1, s2);
	}
	dbg_print(CCX_DMT_708, "The 708 decoder was reset [%d] times.\n",resets_708);
	if (ccx_options.teletext_mode == CCX_TXT_IN_USE)
		mprint ( "Teletext decoder: %"PRIu32" packets processed, %"PRIu32" SRT frames written.\n", tlt_packet_counter, tlt_frames_produced);

	if (dec_ctx->processed_enough)
	{
		mprint ("\rNote: Processing was cancelled before all data was processed because\n");
		mprint ("\rone or more user-defined limits were reached.\n");
	} 
	if (ccblocks_in_avc_lost>0)
	{
		mprint ("Total caption blocks received: %d\n", ccblocks_in_avc_total);
		mprint ("Total caption blocks lost: %d\n", ccblocks_in_avc_lost);
	}

	mprint ("This is beta software. Report issues to carlos at ccextractor org...\n");
	if (show_myth_banner)
	{
		mprint ("NOTICE: Due to the major rework in 0.49, we needed to change part of the timing\n");
		mprint ("code in the MythTV's branch. Please report results to the address above. If\n");
		mprint ("something is broken it will be fixed. Thanks\n");		
	}
	dinit_libraries(&ctx);
	return EXIT_OK;
}
Exemple #4
0
int do_cb (unsigned char *cc_block)
{
    unsigned char cc_valid = (*cc_block & 4) >>2;
    unsigned char cc_type = *cc_block & 3;

    int timeok = 1;

    if ( fix_padding
         && cc_valid==0 && cc_type <= 1 // Only fix NTSC packets
         && cc_block[1]==0 && cc_block[2]==0 )
    {
        /* Padding */
        cc_valid=1;
        cc_block[1]=0x80;
        cc_block[2]=0x80;
    }

    // Print raw data with FTS.
    if (debug_cbraw)
        printf("%s  %02X:%02X:%02X", print_mstime(fts_now + fts_global),
               cc_block[0], cc_block[1], cc_block[2]);

    /* In theory the writercwtdata() function could return early and not
     * go through the 608/708 cases below.  We do that to get accurate
     * counts for cb_field1, cb_field2 and cb_708.
     * Note that printdata() and do_708() must not be called for
     * the OF_RCWT case. */

    if (cc_valid || cc_type==3)
    {
        cc_stats[cc_type]++;

        switch (cc_type)
        {
        case 0:
            if (debug_cbraw)
                printf("    %s   ..   ..\n",  debug_608toASC( cc_block, 0));

            current_field=1;
            saw_caption_block = 1;

            if (extraction_start.set && get_fts() < extraction_start.time_in_ms)
                timeok = 0;
            if (extraction_end.set && get_fts() > extraction_end.time_in_ms)
            {
                timeok = 0;
                processed_enough=1;
            }
            if (timeok)
            {
                if(write_format!=OF_RCWT)
                    printdata (cc_block+1,2,0,0);
                else
                    writercwtdata(cc_block);
            }
            cb_field1++;
            break;
        case 1:
            if (debug_cbraw)
                printf("    ..   %s   ..\n",  debug_608toASC( cc_block, 1));

            current_field=2;
            saw_caption_block = 1;

            if (extraction_start.set && get_fts() < extraction_start.time_in_ms)
                timeok = 0;
            if (extraction_end.set && get_fts() > extraction_end.time_in_ms)
            {
                timeok = 0;
                processed_enough=1;
            }
            if (timeok)
            {
                if(write_format!=OF_RCWT)
                    printdata (0,0,cc_block+1,2);
                else
                    writercwtdata(cc_block);
            }
            cb_field2++;
            break;
        case 2: //EIA-708
            // DTVCC packet data
            // Fall through
        case 3: //EIA-708
            if (debug_cbraw)
                printf("    ..   ..   DD\n");

            // DTVCC packet start
            current_field=3;

            if (extraction_start.set && get_fts() < extraction_start.time_in_ms)
                timeok = 0;
            if (extraction_end.set && get_fts() > extraction_end.time_in_ms)
            {
                timeok = 0;
                processed_enough=1;
            }
            char temp[4];
            temp[0]=cc_valid;
            temp[1]=cc_type;
            temp[2]=cc_block[1];
            temp[3]=cc_block[2];
            if (timeok)
            {
                if(write_format!=OF_RCWT)
                   do_708 ((const unsigned char *) temp, 4);
                else
                    writercwtdata(cc_block);
            }
            cb_708++;
            // Check for bytes read
            // printf ("Warning: Losing EIA-708 data!\n");
            break;
        default:
            fatal(EXIT_BUG_BUG, "Cannot be reached!");
        } // switch (cc_type)
    } // cc_valid
    else
    {
        if (debug_cbraw)
            printf("    ..   ..   ..\n");
        if (debug_verbose)
            printf("Found !(cc_valid || cc_type==3) - ignore this block\n");
    }

    return 1;
}