void set_rotation(AVFormatContext *ic, AVStream *audio_st, AVStream *video_st) { if (!extract_metadata_internal(ic, audio_st, video_st, ROTATE) && video_st && video_st->metadata) { AVDictionaryEntry *entry = av_dict_get(video_st->metadata, ROTATE, NULL, AV_DICT_MATCH_CASE); if (entry && entry->value) { av_dict_set(&ic->metadata, ROTATE, entry->value, 0); } else { av_dict_set(&ic->metadata, ROTATE, "0", 0); } } }
const char* extract_metadata(State **ps, const char* key) { printf("extract_metadata\n"); char* value = NULL; State *state = *ps; if (!state || !state->pFormatCtx) { return value; } return extract_metadata_internal(state->pFormatCtx, state->audio_st, state->video_st, key); }