8f75ba9926
Currently the WebVTT demuxer parses the cues but throws away the cue id (the optional first line of the cue) and cue settings (the optional rendering instructions that follow the timestamp). However, in order to write inband text tracks (to WebM files), the entire cue payload from the WebVTT source must be preserved. This commit makes no change to the data part of the output buffer packet (where the actual cue text is stored), but does add the cue id and settings as a side data items, if they're present in the cue. Existing code that cares only about the data part of the packet can continue to ignore the side data. There are two new packet data type flags, AV_PKT_DATA_WEBVTT_IDENTIFIER and AV_PKT_DATA_WEBVTT_SETTINGS.
FFmpeg README ------------- 1) Documentation ---------------- * Read the documentation in the doc/ directory in git. You can also view it online at http://ffmpeg.org/documentation.html 2) Licensing ------------ * See the LICENSE file. 3) Build and Install -------------------- * See the INSTALL file.