struct lib_cc_decode* init_cc_decode (struct ccx_decoders_common_settings_t *setting)
{
struct lib_cc_decode *ctx = NULL;
ctx = malloc(sizeof(struct lib_cc_decode));
if(!ctx)
return NULL;
// Prepare 608 context
ctx->context_cc608_field_1 = ccx_decoder_608_init_library(
ccx_options.settings_608,
ccx_options.cc_channel,
1,
ccx_options.trim_subs,
ccx_options.encoding,
&ctx->processed_enough,
setting->cc_to_stdout,
setting->subs_delay,
setting->output_format
);
ctx->context_cc608_field_2 = ccx_decoder_608_init_library(
ccx_options.settings_608,
ccx_options.cc_channel,
2,
ccx_options.trim_subs,
ccx_options.encoding,
&ctx->processed_enough,
setting->cc_to_stdout,
setting->subs_delay,
setting->output_format
);
ctx->fix_padding = setting->fix_padding;
ctx->write_format = setting->output_format;
ctx->subs_delay = setting->subs_delay;
ctx->wbout1 = setting->wbout1;
memcpy(&ctx->extraction_start, &setting->extraction_start,sizeof(struct ccx_boundary_time));
memcpy(&ctx->extraction_end, &setting->extraction_end,sizeof(struct ccx_boundary_time));
return ctx;
}
struct lib_cc_decode* init_cc_decode (struct ccx_decoders_common_settings_t *setting)
{
struct lib_cc_decode *ctx = NULL;
ctx = malloc(sizeof(struct lib_cc_decode));
if(!ctx)
return NULL;
ctx->avc_ctx = init_avc();
ctx->codec = setting->codec;
ctx->timing = init_timing_ctx(&ccx_common_timing_settings);
setting->settings_dtvcc->timing = ctx->timing;
setting->settings_608->no_rollup = setting->no_rollup;
setting->settings_dtvcc->no_rollup = setting->no_rollup;
ctx->no_rollup = setting->no_rollup;
ctx->noscte20 = setting->noscte20;
ctx->dtvcc = ccx_dtvcc_init(setting->settings_dtvcc);
ctx->dtvcc->is_active = setting->settings_dtvcc->enabled;
if(setting->codec == CCX_CODEC_ATSC_CC)
{
// Prepare 608 context
ctx->context_cc608_field_1 = ccx_decoder_608_init_library(
setting->settings_608,
setting->cc_channel,
1,
&ctx->processed_enough,
setting->cc_to_stdout,
setting->output_format,
ctx->timing
);
ctx->context_cc608_field_2 = ccx_decoder_608_init_library(
setting->settings_608,
setting->cc_channel,
2,
&ctx->processed_enough,
setting->cc_to_stdout,
setting->output_format,
ctx->timing
);
}
else
{
ctx->context_cc608_field_1 = NULL;
ctx->context_cc608_field_2 = NULL;
}
ctx->current_field = 1;
ctx->private_data = setting->private_data;
ctx->fix_padding = setting->fix_padding;
ctx->write_format = setting->output_format;
ctx->subs_delay = setting->subs_delay;
ctx->extract = setting->extract;
ctx->fullbin = setting->fullbin;
ctx->hauppauge_mode = setting->hauppauge_mode;
ctx->program_number = setting->program_number;
ctx->processed_enough = 0;
ctx->max_gop_length = 0;
ctx->has_ccdata_buffered = 0;
ctx->in_bufferdatatype = CCX_UNKNOWN;
ctx->frames_since_last_gop = 0;
ctx->total_pulldownfields = 0;
ctx->total_pulldownframes = 0;
ctx->stat_numuserheaders = 0;
ctx->stat_dvdccheaders = 0;
ctx->stat_scte20ccheaders = 0;
ctx->stat_replay5000headers = 0;
ctx->stat_replay4000headers = 0;
ctx->stat_dishheaders = 0;
ctx->stat_hdtv = 0;
ctx->stat_divicom = 0;
ctx->false_pict_header = 0;
memcpy(&ctx->extraction_start, &setting->extraction_start,sizeof(struct ccx_boundary_time));
memcpy(&ctx->extraction_end, &setting->extraction_end,sizeof(struct ccx_boundary_time));
if (setting->send_to_srv)
ctx->writedata = net_send_cc;
else if (setting->output_format==CCX_OF_RAW ||
setting->output_format==CCX_OF_DVDRAW ||
setting->output_format==CCX_OF_RCWT )
ctx->writedata = writeraw;
else if (setting->output_format==CCX_OF_SMPTETT ||
setting->output_format==CCX_OF_SAMI ||
setting->output_format==CCX_OF_SRT ||
setting->output_format==CCX_OF_SSA ||
setting->output_format == CCX_OF_WEBVTT ||
setting->output_format==CCX_OF_TRANSCRIPT ||
setting->output_format==CCX_OF_SPUPNG ||
setting->output_format==CCX_OF_SIMPLE_XML ||
setting->output_format==CCX_OF_G608 ||
setting->output_format==CCX_OF_NULL ||
setting->output_format==CCX_OF_CURL)
ctx->writedata = process608;
else
fatal(CCX_COMMON_EXIT_BUG_BUG, "Invalid Write Format Selected");
memset (&ctx->dec_sub, 0,sizeof(ctx->dec_sub));
// Initialize HDTV caption buffer
init_hdcc(ctx);
ctx->current_hor_size = 0;
ctx->current_vert_size = 0;
ctx->current_aspect_ratio = 0;
ctx->current_frame_rate = 4; // Assume standard fps, 29.97
//Variables used while parsing elementry stream
ctx->no_bitstream_error = 0;
ctx->saw_seqgoppic = 0;
ctx->in_pic_data = 0;
ctx->current_progressive_sequence = 2;
ctx->current_pulldownfields = 32768;
ctx->temporal_reference = 0;
ctx->maxtref = 0;
ctx->picture_coding_type = CCX_FRAME_TYPE_RESET_OR_UNKNOWN;
ctx->picture_structure = 0;
ctx->top_field_first = 0;
ctx->repeat_first_field = 0;
ctx->progressive_frame = 0;
ctx->pulldownfields = 0;
//es parser related variable ends here
memset(ctx->cc_stats, 0, 4 * sizeof(int));
ctx->anchor_seq_number = -1;
// Init XDS buffers
if(setting->output_format!=CCX_OF_TRANSCRIPT)
{
setting->xds_write_to_file = 0;
}
ctx->xds_ctx = ccx_decoders_xds_init_library(ctx->timing, setting->xds_write_to_file);
ctx->vbi_decoder = NULL;
return ctx;
}