On Fri, Apr 16, 2021 at 12:22 AM zheng qian <x...@xqq.im> wrote: > + > + // data_component_descriptor, defined in ARIB STD-B10, part > 2, 6.2.20 > + *q++ = 0xFD; // descriptor_tag: ARIB data coding type > descriptor > + *q++ = 3; // descriptor_length > + put16(&q, data_component_id); // data_component_id > + // additional_arib_caption_info: defined in ARIB STD-B24, > fascicle 1, Part 3, 9.6.1 > + // Use most commonly used value 0x3D: DMF(0x3), > Reserved(0x3), Timing(0x1) > + *q++ = 0x3D;
I have tested lots of TV streams in Japan from terrestrial channels near Tokyo, and plenty of BS/CS satellite channels. All of them have a value of 0x3d for the additional_arib_caption_info field so I used it. Regards, zheng > } > break; > case AVMEDIA_TYPE_VIDEO: > -- > 2.29.2 > _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
