AV_AUDIO_SERVICE_TYPE_EMERGENCY 1938 libavcodec/ac3enc.c           avctx->audio_service_type == AV_AUDIO_SERVICE_TYPE_EMERGENCY  ||
AV_AUDIO_SERVICE_TYPE_EMERGENCY  475 libavcodec/options_table.h {"em", "Emergency",          0, AV_OPT_TYPE_CONST, {.i64 = AV_AUDIO_SERVICE_TYPE_EMERGENCY },         INT_MIN, INT_MAX, A|E, "audio_service_type"},
AV_AUDIO_SERVICE_TYPE_EMERGENCY  162 libavfilter/af_ashowinfo.c     case AV_AUDIO_SERVICE_TYPE_EMERGENCY:         av_log(ctx, AV_LOG_INFO, "Emergency");          break;